GitHub/LineageOS/android_kernel_motorola_exynos9610.git
2 years agoscsi: pm8001: Fix command initialization in pm8001_chip_ssp_tm_req()
Damien Le Moal [Sun, 20 Feb 2022 03:17:45 +0000 (12:17 +0900)]
scsi: pm8001: Fix command initialization in pm8001_chip_ssp_tm_req()

[ Upstream commit cd2268a180117aa8ebb23e090ba204324b2d0e93 ]

The ds_ads_m field of struct ssp_ini_tm_start_req has the type __le32.
Assigning a value to it should thus use cpu_to_le32(). This fixes the
sparse warning:

warning: incorrect type in assignment (different base types)
   expected restricted __le32 [addressable] [assigned] [usertype] ds_ads_m
   got int

Link: https://lore.kernel.org/r/20220220031810.738362-7-damien.lemoal@opensource.wdc.com
Fixes: dbf9bfe61571 ("[SCSI] pm8001: add SAS/SATA HBA driver")
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoscsi: pm8001: Fix command initialization in pm80XX_send_read_log()
Damien Le Moal [Sun, 20 Feb 2022 03:17:43 +0000 (12:17 +0900)]
scsi: pm8001: Fix command initialization in pm80XX_send_read_log()

[ Upstream commit 1a37b6738b58d86f6b144b3fc754ace0f2e0166d ]

Since the sata_cmd struct is zeroed out before its fields are initialized,
there is no need for using "|=" to initialize the ncqtag_atap_dir_m
field. Using a standard assignment removes the sparse warning:

warning: invalid assignment: |=

Also, since the ncqtag_atap_dir_m field has type __le32, use cpu_to_le32()
to generate the assigned value.

Link: https://lore.kernel.org/r/20220220031810.738362-5-damien.lemoal@opensource.wdc.com
Fixes: c6b9ef5779c3 ("[SCSI] pm80xx: NCQ error handling changes")
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agodm crypt: fix get_key_size compiler warning if !CONFIG_KEYS
Aashish Sharma [Fri, 11 Feb 2022 12:15:38 +0000 (12:15 +0000)]
dm crypt: fix get_key_size compiler warning if !CONFIG_KEYS

[ Upstream commit 6fc51504388c1a1a53db8faafe9fff78fccc7c87 ]

Explicitly convert unsigned int in the right of the conditional
expression to int to match the left side operand and the return type,
fixing the following compiler warning:

drivers/md/dm-crypt.c:2593:43: warning: signed and unsigned
type in conditional expression [-Wsign-compare]

Fixes: c538f6ec9f56 ("dm crypt: add ability to use keys from the kernel key retention service")
Signed-off-by: Aashish Sharma <shraash@google.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoiwlwifi: Fix -EIO error code that is never returned
Colin Ian King [Tue, 7 Sep 2021 10:46:58 +0000 (11:46 +0100)]
iwlwifi: Fix -EIO error code that is never returned

[ Upstream commit c305c94bdc18e45b5ad1db54da4269f8cbfdff6b ]

Currently the error -EIO is being assinged to variable ret when
the READY_BIT is not set but the function iwlagn_mac_start returns
0 rather than ret. Fix this by returning ret instead of 0.

Addresses-Coverity: ("Unused value")
Fixes: 7335613ae27a ("iwlwifi: move all mac80211 related functions to one place")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20210907104658.14706-1-colin.king@canonical.com
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoHID: i2c-hid: fix GET/SET_REPORT for unnumbered reports
Dmitry Torokhov [Tue, 18 Jan 2022 07:26:18 +0000 (23:26 -0800)]
HID: i2c-hid: fix GET/SET_REPORT for unnumbered reports

[ Upstream commit a5e5e03e94764148a01757b2fa4737d3445c13a6 ]

Internally kernel prepends all report buffers, for both numbered and
unnumbered reports, with report ID, therefore to properly handle unnumbered
reports we should prepend it ourselves.

For the same reason we should skip the first byte of the buffer when
calling i2c_hid_set_or_send_report() which then will take care of properly
formatting the transfer buffer based on its separate report ID argument
along with report payload.

[jkosina@suse.cz: finalize trimmed sentence in changelog as spotted by Benjamin]
Fixes: 9b5a9ae88573 ("HID: i2c-hid: implement ll_driver transport-layer callbacks")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agopower: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init
Miaoqian Lin [Mon, 24 Jan 2022 13:13:46 +0000 (13:13 +0000)]
power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init

[ Upstream commit 6a4760463dbc6b603690938c468839985189ce0a ]

kobject_init_and_add() takes reference even when it fails.
According to the doc of kobject_init_and_add():

   If this function returns an error, kobject_put() must be called to
   properly clean up the memory associated with the object.

Fix memory leak by calling kobject_put().

Fixes: 8c0984e5a753 ("power: move power supply drivers to power/supply")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoray_cs: Check ioremap return value
Jiasheng Jiang [Thu, 30 Dec 2021 02:29:26 +0000 (10:29 +0800)]
ray_cs: Check ioremap return value

[ Upstream commit 7e4760713391ee46dc913194b33ae234389a174e ]

As the possible failure of the ioremap(), the 'local->sram' and other
two could be NULL.
Therefore it should be better to check it in order to avoid the later
dev_dbg.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211230022926.1846757-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agopower: reset: gemini-poweroff: Fix IRQ check in gemini_poweroff_probe
Miaoqian Lin [Thu, 20 Jan 2022 10:46:54 +0000 (10:46 +0000)]
power: reset: gemini-poweroff: Fix IRQ check in gemini_poweroff_probe

[ Upstream commit ba18dad0fb880cd29aa97b6b75560ef14d1061ba ]

platform_get_irq() returns negative error number instead 0 on failure.
And the doc of platform_get_irq() provides a usage example:

    int irq = platform_get_irq(pdev, 0);
    if (irq < 0)
        return irq;

Fix the check of return value to catch errors correctly.

Fixes: f7a388d6cd1c ("power: reset: Add a driver for the Gemini poweroff")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoath9k_htc: fix uninit value bugs
Pavel Skripkin [Wed, 19 Jan 2022 08:52:37 +0000 (10:52 +0200)]
ath9k_htc: fix uninit value bugs

[ Upstream commit d1e0df1c57bd30871dd1c855742a7c346dbca853 ]

Syzbot reported 2 KMSAN bugs in ath9k. All of them are caused by missing
field initialization.

In htc_connect_service() svc_meta_len and pad are not initialized. Based
on code it looks like in current skb there is no service data, so simply
initialize svc_meta_len to 0.

htc_issue_send() does not initialize htc_frame_hdr::control array. Based
on firmware code, it will initialize it by itself, so simply zero whole
array to make KMSAN happy

Fail logs:

BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
 usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
 hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline]
 hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479
 htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline]
 htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275
...

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:524 [inline]
 slab_alloc_node mm/slub.c:3251 [inline]
 __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974
 kmalloc_reserve net/core/skbuff.c:354 [inline]
 __alloc_skb+0x545/0xf90 net/core/skbuff.c:426
 alloc_skb include/linux/skbuff.h:1126 [inline]
 htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258
...

Bytes 4-7 of 18 are uninitialized
Memory access of size 18 starts at ffff888027377e00

BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
 usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
 hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline]
 hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479
 htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline]
 htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275
...

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:524 [inline]
 slab_alloc_node mm/slub.c:3251 [inline]
 __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974
 kmalloc_reserve net/core/skbuff.c:354 [inline]
 __alloc_skb+0x545/0xf90 net/core/skbuff.c:426
 alloc_skb include/linux/skbuff.h:1126 [inline]
 htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258
...

Bytes 16-17 of 18 are uninitialized
Memory access of size 18 starts at ffff888027377e00

Fixes: fb9987d0f748 ("ath9k_htc: Support for AR9271 chipset.")
Reported-by: syzbot+f83a1df1ed4f67e8d8ad@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220115122733.11160-1-paskripkin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agodrm/edid: Don't clear formats if using deep color
Maxime Ripard [Thu, 20 Jan 2022 15:16:11 +0000 (16:16 +0100)]
drm/edid: Don't clear formats if using deep color

[ Upstream commit 75478b3b393bcbdca4e6da76fe3a9f1a4133ec5d ]

The current code, when parsing the EDID Deep Color depths, that the
YUV422 cannot be used, referring to the HDMI 1.3 Specification.

This specification, in its section 6.2.4, indeed states:

  For each supported Deep Color mode, RGB 4:4:4 shall be supported and
  optionally YCBCR 4:4:4 may be supported.

  YCBCR 4:2:2 is not permitted for any Deep Color mode.

This indeed can be interpreted like the code does, but the HDMI 1.4
specification further clarifies that statement in its section 6.2.4:

  For each supported Deep Color mode, RGB 4:4:4 shall be supported and
  optionally YCBCR 4:4:4 may be supported.

  YCBCR 4:2:2 is also 36-bit mode but does not require the further use
  of the Deep Color modes described in section 6.5.2 and 6.5.3.

This means that, even though YUV422 can be used with 12 bit per color,
it shouldn't be treated as a deep color mode.

This is also broken with YUV444 if it's supported by the display, but
DRM_EDID_HDMI_DC_Y444 isn't set. In such a case, the code will clear
color_formats of the YUV444 support set previously in
drm_parse_cea_ext(), but will not set it back.

Since the formats supported are already setup properly in
drm_parse_cea_ext(), let's just remove the code modifying the formats in
drm_parse_hdmi_deep_color_info()

Fixes: d0c94692e0a3 ("drm/edid: Parse and handle HDMI deep color modes.")
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220120151625.594595-3-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agomtd: onenand: Check for error irq
Jiasheng Jiang [Tue, 4 Jan 2022 16:26:58 +0000 (00:26 +0800)]
mtd: onenand: Check for error irq

[ Upstream commit 3e68f331c8c759c0daa31cc92c3449b23119a215 ]

For the possible failure of the platform_get_irq(), the returned irq
could be error number and will finally cause the failure of the
request_irq().
Consider that platform_get_irq() can now in certain cases return
-EPROBE_DEFER, and the consequences of letting request_irq() effectively
convert that into -EINVAL, even at probe time rather than later on.
So it might be better to check just now.

Fixes: 2c22120fbd01 ("MTD: OneNAND: interrupt based wait support")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220104162658.1988142-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoASoC: msm8916-wcd-digital: Fix missing clk_disable_unprepare() in msm8916_wcd_digital...
Miaoqian Lin [Mon, 7 Mar 2022 08:45:22 +0000 (08:45 +0000)]
ASoC: msm8916-wcd-digital: Fix missing clk_disable_unprepare() in msm8916_wcd_digital_probe

[ Upstream commit 375a347da4889f64d86e1ab7f4e6702b6e9bf299 ]

Fix the missing clk_disable_unprepare() before return
from msm8916_wcd_digital_probe in the error handling case.

Fixes: 150db8c5afa1 ("ASoC: codecs: Add msm8916-wcd digital codec")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220307084523.28687-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoASoC: imx-es8328: Fix error return code in imx_es8328_probe()
Wang Wensheng [Thu, 10 Mar 2022 09:19:02 +0000 (09:19 +0000)]
ASoC: imx-es8328: Fix error return code in imx_es8328_probe()

[ Upstream commit 3b891513f95cba3944e72c1139ea706d04f3781b ]

Fix to return a negative error code from the error handling case instead
of 0, as done elsewhere in this function.

Fixes: 7e7292dba215 ("ASoC: fsl: add imx-es8328 machine driver")
Signed-off-by: Wang Wensheng <wangwensheng4@huawei.com>
Link: https://lore.kernel.org/r/20220310091902.129299-1-wangwensheng4@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoASoC: mxs: Fix error handling in mxs_sgtl5000_probe
Miaoqian Lin [Tue, 8 Mar 2022 02:01:44 +0000 (02:01 +0000)]
ASoC: mxs: Fix error handling in mxs_sgtl5000_probe

[ Upstream commit 6ae0a4d8fec551ec581d620f0eb1fe31f755551c ]

This function only calls of_node_put() in the regular path.
And it will cause refcount leak in error paths.
For example, when codec_np is NULL, saif_np[0] and saif_np[1]
are not NULL, it will cause leaks.

of_node_put() will check if the node pointer is NULL, so we can
call it directly to release the refcount of regular pointers.

Fixes: e968194b45c4 ("ASoC: mxs: add device tree support for mxs-sgtl5000")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220308020146.26496-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoASoC: dmaengine: do not use a NULL prepare_slave_config() callback
Codrin Ciubotariu [Mon, 7 Mar 2022 12:21:57 +0000 (14:21 +0200)]
ASoC: dmaengine: do not use a NULL prepare_slave_config() callback

[ Upstream commit 9a1e13440a4f2e7566fd4c5eae6a53e6400e08a4 ]

Even if struct snd_dmaengine_pcm_config is used, prepare_slave_config()
callback might not be set. Check if this callback is set before using it.

Fixes: fa654e085300 ("ASoC: dmaengine-pcm: Provide default config")
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20220307122202.2251639-2-codrin.ciubotariu@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agovideo: fbdev: omapfb: Add missing of_node_put() in dvic_probe_of
Miaoqian Lin [Mon, 7 Mar 2022 12:38:12 +0000 (12:38 +0000)]
video: fbdev: omapfb: Add missing of_node_put() in dvic_probe_of

[ Upstream commit a58c22cfbbf62fefca090334bbd35fd132e92a23 ]

The device_node pointer is returned by of_parse_phandle()  with refcount
incremented. We should use of_node_put() on it when done.

Fixes: f76ee892a99e ("omapfb: copy omapdss & displays for omapfb")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoASoC: fsi: Add check for clk_enable
Jiasheng Jiang [Wed, 2 Mar 2022 06:28:44 +0000 (14:28 +0800)]
ASoC: fsi: Add check for clk_enable

[ Upstream commit 405afed8a728f23cfaa02f75bbc8bdd6b7322123 ]

As the potential failure of the clk_enable(),
it should be better to check it and return error
if fails.

Fixes: ab6f6d85210c ("ASoC: fsi: add master clock control functions")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220302062844.46869-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoASoC: wm8350: Handle error for wm8350_register_irq
Jiasheng Jiang [Fri, 4 Mar 2022 02:38:21 +0000 (10:38 +0800)]
ASoC: wm8350: Handle error for wm8350_register_irq

[ Upstream commit db0350da8084ad549bca16cc0486c11cc70a1f9b ]

As the potential failure of the wm8350_register_irq(),
it should be better to check it and return error if fails.
Also, use 'free_' in order to avoid the same code.

Fixes: a6ba2b2dabb5 ("ASoC: Implement WM8350 headphone jack detection")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220304023821.391936-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe
Miaoqian Lin [Mon, 7 Mar 2022 12:45:39 +0000 (12:45 +0000)]
ASoC: atmel: Add missing of_node_put() in at91sam9g20ek_audio_probe

[ Upstream commit f590797fa3c1bccdd19e55441592a23b46aef449 ]

This node pointer is returned by of_parse_phandle() with refcount
incremented in this function.
Calling of_node_put() to avoid the refcount leak.

Fixes: 531f67e41dcd ("ASoC: at91sam9g20ek-wm8731: convert to dt support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Link: https://lore.kernel.org/r/20220307124539.1743-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agomedia: stk1160: If start stream fails, return buffers with VB2_BUF_STATE_QUEUED
Dafna Hirschfeld [Tue, 25 Jan 2022 08:02:11 +0000 (09:02 +0100)]
media: stk1160: If start stream fails, return buffers with VB2_BUF_STATE_QUEUED

[ Upstream commit fbe04b49a54e31f4321d632270207f0e6304cd16 ]

If the callback 'start_streaming' fails, then all
queued buffers in the driver should be returned with
state 'VB2_BUF_STATE_QUEUED'. Currently, they are
returned with 'VB2_BUF_STATE_ERROR' which is wrong.
Fix this. This also fixes the warning:

[   65.583633] WARNING: CPU: 5 PID: 593 at drivers/media/common/videobuf2/videobuf2-core.c:1612 vb2_start_streaming+0xd4/0x160 [videobuf2_common]
[   65.585027] Modules linked in: snd_usb_audio snd_hwdep snd_usbmidi_lib snd_rawmidi snd_soc_hdmi_codec dw_hdmi_i2s_audio saa7115 stk1160 videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc crct10dif_ce panfrost snd_soc_simple_card snd_soc_audio_graph_card snd_soc_spdif_tx snd_soc_simple_card_utils gpu_sched phy_rockchip_pcie snd_soc_rockchip_i2s rockchipdrm analogix_dp dw_mipi_dsi dw_hdmi cec drm_kms_helper drm rtc_rk808 rockchip_saradc industrialio_triggered_buffer kfifo_buf rockchip_thermal pcie_rockchip_host ip_tables x_tables ipv6
[   65.589383] CPU: 5 PID: 593 Comm: v4l2src0:src Tainted: G        W         5.16.0-rc4-62408-g32447129cb30-dirty #14
[   65.590293] Hardware name: Radxa ROCK Pi 4B (DT)
[   65.590696] pstate: 80000005 (Nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   65.591304] pc : vb2_start_streaming+0xd4/0x160 [videobuf2_common]
[   65.591850] lr : vb2_start_streaming+0x6c/0x160 [videobuf2_common]
[   65.592395] sp : ffff800012bc3ad0
[   65.592685] x29: ffff800012bc3ad0 x28: 0000000000000000 x27: ffff800012bc3cd8
[   65.593312] x26: 0000000000000000 x25: ffff00000d8a7800 x24: 0000000040045612
[   65.593938] x23: ffff800011323000 x22: ffff800012bc3cd8 x21: ffff00000908a8b0
[   65.594562] x20: ffff00000908a8c8 x19: 00000000fffffff4 x18: ffffffffffffffff
[   65.595188] x17: 000000040044ffff x16: 00400034b5503510 x15: ffff800011323f78
[   65.595813] x14: ffff000013163886 x13: ffff000013163885 x12: 00000000000002ce
[   65.596439] x11: 0000000000000028 x10: 0000000000000001 x9 : 0000000000000228
[   65.597064] x8 : 0101010101010101 x7 : 7f7f7f7f7f7f7f7f x6 : fefefeff726c5e78
[   65.597690] x5 : ffff800012bc3990 x4 : 0000000000000000 x3 : ffff000009a34880
[   65.598315] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000007cd99f0
[   65.598940] Call trace:
[   65.599155]  vb2_start_streaming+0xd4/0x160 [videobuf2_common]
[   65.599672]  vb2_core_streamon+0x17c/0x1a8 [videobuf2_common]
[   65.600179]  vb2_streamon+0x54/0x88 [videobuf2_v4l2]
[   65.600619]  vb2_ioctl_streamon+0x54/0x60 [videobuf2_v4l2]
[   65.601103]  v4l_streamon+0x3c/0x50 [videodev]
[   65.601521]  __video_do_ioctl+0x1a4/0x428 [videodev]
[   65.601977]  video_usercopy+0x320/0x828 [videodev]
[   65.602419]  video_ioctl2+0x3c/0x58 [videodev]
[   65.602830]  v4l2_ioctl+0x60/0x90 [videodev]
[   65.603227]  __arm64_sys_ioctl+0xa8/0xe0
[   65.603576]  invoke_syscall+0x54/0x118
[   65.603911]  el0_svc_common.constprop.3+0x84/0x100
[   65.604332]  do_el0_svc+0x34/0xa0
[   65.604625]  el0_svc+0x1c/0x50
[   65.604897]  el0t_64_sync_handler+0x88/0xb0
[   65.605264]  el0t_64_sync+0x16c/0x170
[   65.605587] ---[ end trace 578e0ba07742170d ]---

Fixes: 8ac456495a33d ("[media] stk1160: Stop device and unqueue buffers when start_streaming() fails")
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction
Takashi Sakamoto [Fri, 4 Mar 2022 12:56:47 +0000 (21:56 +0900)]
ALSA: firewire-lib: fix uninitialized flag for AV/C deferred transaction

[ Upstream commit bf0cd60b7e33cf221fbe1114e4acb2c828b0af0d ]

AV/C deferred transaction was supported at a commit 00a7bb81c20f ("ALSA:
firewire-lib: Add support for deferred transaction") while 'deferrable'
flag can be uninitialized for non-control/notify AV/C transactions.
UBSAN reports it:

kernel: ================================================================================
kernel: UBSAN: invalid-load in /build/linux-aa0B4d/linux-5.15.0/sound/firewire/fcp.c:363:9
kernel: load of value 158 is not a valid value for type '_Bool'
kernel: CPU: 3 PID: 182227 Comm: irq/35-firewire Tainted: P           OE     5.15.0-18-generic #18-Ubuntu
kernel: Hardware name: Gigabyte Technology Co., Ltd. AX370-Gaming 5/AX370-Gaming 5, BIOS F42b 08/01/2019
kernel: Call Trace:
kernel:  <IRQ>
kernel:  show_stack+0x52/0x58
kernel:  dump_stack_lvl+0x4a/0x5f
kernel:  dump_stack+0x10/0x12
kernel:  ubsan_epilogue+0x9/0x45
kernel:  __ubsan_handle_load_invalid_value.cold+0x44/0x49
kernel:  fcp_response.part.0.cold+0x1a/0x2b [snd_firewire_lib]
kernel:  fcp_response+0x28/0x30 [snd_firewire_lib]
kernel:  fw_core_handle_request+0x230/0x3d0 [firewire_core]
kernel:  handle_ar_packet+0x1d9/0x200 [firewire_ohci]
kernel:  ? handle_ar_packet+0x1d9/0x200 [firewire_ohci]
kernel:  ? transmit_complete_callback+0x9f/0x120 [firewire_core]
kernel:  ar_context_tasklet+0xa8/0x2e0 [firewire_ohci]
kernel:  tasklet_action_common.constprop.0+0xea/0xf0
kernel:  tasklet_action+0x22/0x30
kernel:  __do_softirq+0xd9/0x2e3
kernel:  ? irq_finalize_oneshot.part.0+0xf0/0xf0
kernel:  do_softirq+0x75/0xa0
kernel:  </IRQ>
kernel:  <TASK>
kernel:  __local_bh_enable_ip+0x50/0x60
kernel:  irq_forced_thread_fn+0x7e/0x90
kernel:  irq_thread+0xba/0x190
kernel:  ? irq_thread_fn+0x60/0x60
kernel:  kthread+0x11e/0x140
kernel:  ? irq_thread_check_affinity+0xf0/0xf0
kernel:  ? set_kthread_struct+0x50/0x50
kernel:  ret_from_fork+0x22/0x30
kernel:  </TASK>
kernel: ================================================================================

This commit fixes the bug. The bug has no disadvantage for the non-
control/notify AV/C transactions since the flag has an effect for AV/C
response with INTERIM (0x0f) status which is not used for the transactions
in AV/C general specification.

Fixes: 00a7bb81c20f ("ALSA: firewire-lib: Add support for deferred transaction")
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20220304125647.78430-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agomemory: emif: check the pointer temp in get_device_details()
Jia-Ju Bai [Fri, 25 Feb 2022 13:25:52 +0000 (05:25 -0800)]
memory: emif: check the pointer temp in get_device_details()

[ Upstream commit 5b5ab1bfa1898c6d52936a57c25c5ceba2cb2f87 ]

The pointer temp is allocated by devm_kzalloc(), so it should be
checked for error handling.

Fixes: 7ec944538dde ("memory: emif: add basic infrastructure for EMIF driver")
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Link: https://lore.kernel.org/r/20220225132552.27894-1-baijiaju1990@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agomemory: emif: Add check for setup_interrupts
Jiasheng Jiang [Thu, 24 Feb 2022 02:54:44 +0000 (10:54 +0800)]
memory: emif: Add check for setup_interrupts

[ Upstream commit fd7bd80b46373887b390852f490f21b07e209498 ]

As the potential failure of the devm_request_threaded_irq(),
it should be better to check the return value of the
setup_interrupts() and return error if fails.

Fixes: 68b4aee35d1f ("memory: emif: add interrupt and temperature handling")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220224025444.3256530-1-jiasheng@iscas.ac.cn
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoASoC: atmel_ssc_dai: Handle errors for clk_enable
Jiasheng Jiang [Tue, 1 Mar 2022 09:06:37 +0000 (17:06 +0800)]
ASoC: atmel_ssc_dai: Handle errors for clk_enable

[ Upstream commit f9e2ca0640e59d19af0ff285ee5591ed39069b09 ]

As the potential failure of the clk_enable(),
it should be better to check it and return error if fals.

Fixes: cbaadf0f90d6 ("ASoC: atmel_ssc_dai: refactor the startup and shutdown")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220301090637.3776558-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoASoC: mxs-saif: Handle errors for clk_enable
Jiasheng Jiang [Tue, 1 Mar 2022 08:17:17 +0000 (16:17 +0800)]
ASoC: mxs-saif: Handle errors for clk_enable

[ Upstream commit 2ecf362d220317debf5da376e0390e9f7a3f7b29 ]

As the potential failure of the clk_enable(),
it should be better to check it, like mxs_saif_trigger().

Fixes: d0ba4c014934 ("ASoC: mxs-saif: set a base clock rate for EXTMASTER mode work")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220301081717.3727190-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoprintk: fix return value of printk.devkmsg __setup handler
Randy Dunlap [Mon, 28 Feb 2022 22:05:56 +0000 (14:05 -0800)]
printk: fix return value of printk.devkmsg __setup handler

[ Upstream commit b665eae7a788c5e2bc10f9ac3c0137aa0ad1fc97 ]

If an invalid option value is used with "printk.devkmsg=<value>",
it is silently ignored.
If a valid option value is used, it is honored but the wrong return
value (0) is used, indicating that the command line option had an
error and was not handled. This string is not added to init's
environment strings due to init/main.c::unknown_bootoption()
checking for a '.' in the boot option string and then considering
that string to be an "Unused module parameter".

Print a warning message if a bad option string is used.
Always return 1 from the __setup handler to indicate that the command
line option has been handled.

Fixes: 750afe7babd1 ("printk: add kernel parameter to control writes to /dev/kmsg")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Cc: Borislav Petkov <bp@suse.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: John Ogness <john.ogness@linutronix.de>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220228220556.23484-1-rdunlap@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoarm64: dts: broadcom: Fix sata nodename
Frank Wunderlich [Tue, 1 Mar 2022 15:24:18 +0000 (16:24 +0100)]
arm64: dts: broadcom: Fix sata nodename

[ Upstream commit 55927cb44db43a57699fa652e2437a91620385dc ]

After converting ahci-platform txt binding to yaml nodename is reported
as not matching the standard:

arch/arm64/boot/dts/broadcom/northstar2/ns2-svk.dt.yaml:
ahci@663f2000: $nodename:0: 'ahci@663f2000' does not match '^sata(@.*)?$'

Fix it to match binding.

Fixes: ac9aae00f0fc ("arm64: dts: Add SATA3 AHCI and SATA3 PHY DT nodes for NS2")
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoarm64: dts: ns2: Fix spi-cpol and spi-cpha property
Kuldeep Singh [Mon, 28 Feb 2022 11:09:03 +0000 (16:39 +0530)]
arm64: dts: ns2: Fix spi-cpol and spi-cpha property

[ Upstream commit c953c764e505428f59ffe6afb1c73b89b5b1ac35 ]

Broadcom ns2 platform has spi-cpol and spi-cpho properties set
incorrectly. As per spi-slave-peripheral-prop.yaml, these properties are
of flag or boolean type and not integer type. Fix the values.

Fixes: d69dbd9f41a7c (arm64: dts: Add ARM PL022 SPI DT nodes for NS2)
Signed-off-by: Kuldeep Singh <singh.kuldeep87k@gmail.com>
CC: Ray Jui <rjui@broadcom.com>
CC: Scott Branden <sbranden@broadcom.com>
CC: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoALSA: spi: Add check for clk_enable()
Jiasheng Jiang [Mon, 28 Feb 2022 02:28:39 +0000 (10:28 +0800)]
ALSA: spi: Add check for clk_enable()

[ Upstream commit ca1697eb09208f0168d94b88b72f57505339cbe5 ]

As the potential failure of the clk_enable(),
it should be better to check it and return error
if fails.

Fixes: 3568459a5113 ("ALSA: at73c213: manage SSC clock")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220228022839.3547266-1-jiasheng@iscas.ac.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoASoC: ti: davinci-i2s: Add check for clk_enable()
Jiasheng Jiang [Mon, 28 Feb 2022 03:15:40 +0000 (11:15 +0800)]
ASoC: ti: davinci-i2s: Add check for clk_enable()

[ Upstream commit ed7c9fef11931fc5d32a83d68017ff390bf5c280 ]

As the potential failure of the clk_enable(),
it should be better to check it and return error
if fails.

Fixes: 5f9a50c3e55e ("ASoC: Davinci: McBSP: add device tree support for McBSP")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Acked-by: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Link: https://lore.kernel.org/r/20220228031540.3571959-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agomedia: usb: go7007: s2250-board: fix leak in probe()
Dan Carpenter [Wed, 2 Feb 2022 17:52:01 +0000 (20:52 +0300)]
media: usb: go7007: s2250-board: fix leak in probe()

[ Upstream commit 67e4550ecd6164bfbdff54c169e5bbf9ccfaf14d ]

Call i2c_unregister_device(audio) on this error path.

Fixes: d3b2ccd9e307 ("[media] s2250: convert to the control framework")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agosoc: ti: wkup_m3_ipc: Fix IRQ check in wkup_m3_ipc_probe
Miaoqian Lin [Fri, 14 Jan 2022 06:28:40 +0000 (06:28 +0000)]
soc: ti: wkup_m3_ipc: Fix IRQ check in wkup_m3_ipc_probe

[ Upstream commit c3d66a164c726cc3b072232d3b6d87575d194084 ]

platform_get_irq() returns negative error number instead 0 on failure.
And the doc of platform_get_irq() provides a usage example:

    int irq = platform_get_irq(pdev, 0);
    if (irq < 0)
        return irq;

Fix the check of return value to catch errors correctly.

Fixes: cdd5de500b2c ("soc: ti: Add wkup_m3_ipc driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Dave Gerlach <d-gerlach@ti.com>
Link: https://lore.kernel.org/r/20220114062840.16620-1-linmq006@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoARM: dts: qcom: ipq4019: fix sleep clock
Pavel Kubelun [Mon, 20 Dec 2021 17:03:52 +0000 (18:03 +0100)]
ARM: dts: qcom: ipq4019: fix sleep clock

[ Upstream commit 3d7e7980993d2c1ae42d3d314040fc2de6a9c45f ]

It seems like sleep_clk was copied from ipq806x.
Fix ipq40xx sleep_clk to the value QSDK defines.

Link: https://source.codeaurora.org/quic/qsdk/oss/kernel/linux-msm/commit/?id=d92ec59973484acc86dd24b67f10f8911b4b4b7d
Link: https://patchwork.kernel.org/comment/22721613/
Fixes: bec6ba4cdf2a ("qcom: ipq4019: Add basic board/dts support for IPQ4019 SoC")
Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org> (clock-output-names)
Signed-off-by: Pavel Kubelun <be.dissent@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com> (removed clock rename)
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211220170352.34591-1-chunkeey@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agovideo: fbdev: fbcvt.c: fix printing in fb_cvt_print_name()
Dan Carpenter [Thu, 16 Sep 2021 13:29:19 +0000 (16:29 +0300)]
video: fbdev: fbcvt.c: fix printing in fb_cvt_print_name()

[ Upstream commit 78482af095abd9f4f29f1aa3fe575d25c6ae3028 ]

This code has two bugs:
1) "cnt" is 255 but the size of the buffer is 256 so the last byte is
   not used.
2) If we try to print more than 255 characters then "cnt" will be
   negative and that will trigger a WARN() in snprintf(). The fix for
   this is to use scnprintf() instead of snprintf().

We can re-write this code to be cleaner:
1) Rename "offset" to "off" because that's shorter.
2) Get rid of the "cnt" variable and just use "size - off" directly.
3) Get rid of the "read" variable and just increment "off" directly.

Fixes: 96fe6a2109db ("fbdev: Add VESA Coordinated Video Timings (CVT) support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agovideo: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()
Wang Hai [Thu, 14 Oct 2021 13:22:31 +0000 (21:22 +0800)]
video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()

[ Upstream commit 1791f487f877a9e83d81c8677bd3e7b259e7cb27 ]

I got a null-ptr-deref report:

BUG: kernel NULL pointer dereference, address: 0000000000000000
...
RIP: 0010:fb_destroy_modelist+0x38/0x100
...
Call Trace:
 ufx_usb_probe.cold+0x2b5/0xac1 [smscufx]
 usb_probe_interface+0x1aa/0x3c0 [usbcore]
 really_probe+0x167/0x460
...
 ret_from_fork+0x1f/0x30

If fb_alloc_cmap() fails in ufx_usb_probe(), fb_destroy_modelist() will
be called to destroy modelist in the error handling path. But modelist
has not been initialized yet, so it will result in null-ptr-deref.

Initialize modelist before calling fb_alloc_cmap() to fix this bug.

Fixes: 3c8a63e22a08 ("Add support for SMSC UFX6000/7000 USB display adapters")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agomedia: coda: Fix missing put_device() call in coda_get_vdoa_data
Miaoqian Lin [Wed, 12 Jan 2022 11:05:54 +0000 (12:05 +0100)]
media: coda: Fix missing put_device() call in coda_get_vdoa_data

[ Upstream commit ca85d271531a1e1c86f24b892f57b7d0a3ddb5a6 ]

The reference taken by 'of_find_device_by_node()' must be released when
not needed anymore.
Add the corresponding 'put_device()' in the error handling path.

Fixes: e7f3c5481035 ("[media] coda: use VDOA for un-tiling custom macroblock format")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoperf/x86/intel/pt: Fix address filter config for 32-bit kernel
Adrian Hunter [Mon, 31 Jan 2022 07:24:52 +0000 (09:24 +0200)]
perf/x86/intel/pt: Fix address filter config for 32-bit kernel

[ Upstream commit e5524bf1047eb3b3f3f33b5f59897ba67b3ade87 ]

Change from shifting 'unsigned long' to 'u64' to prevent the config bits
being lost on a 32-bit kernel.

Fixes: eadf48cab4b6b0 ("perf/x86/intel/pt: Add support for address range filtering in PT")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220131072453.2839535-5-adrian.hunter@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoperf/core: Fix address filter parser for multiple filters
Adrian Hunter [Mon, 31 Jan 2022 07:24:51 +0000 (09:24 +0200)]
perf/core: Fix address filter parser for multiple filters

[ Upstream commit d680ff24e9e14444c63945b43a37ede7cd6958f9 ]

Reset appropriate variables in the parser loop between parsing separate
filters, so that they do not interfere with parsing the next filter.

Fixes: 375637bc524952 ("perf/core: Introduce address range filtering")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220131072453.2839535-4-adrian.hunter@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agosched/debug: Remove mpol_get/put and task_lock/unlock from sched_show_numa
Bharata B Rao [Tue, 18 Jan 2022 05:05:15 +0000 (10:35 +0530)]
sched/debug: Remove mpol_get/put and task_lock/unlock from sched_show_numa

[ Upstream commit 28c988c3ec29db74a1dda631b18785958d57df4f ]

The older format of /proc/pid/sched printed home node info which
required the mempolicy and task lock around mpol_get(). However
the format has changed since then and there is no need for
sched_show_numa() any more to have mempolicy argument,
asssociated mpol_get/put and task_lock/unlock. Remove them.

Fixes: 397f2378f1361 ("sched/numa: Fix numa balancing stats in /proc/pid/sched")
Signed-off-by: Bharata B Rao <bharata@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Link: https://lore.kernel.org/r/20220118050515.2973-1-bharata@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoclocksource: acpi_pm: fix return value of __setup handler
Randy Dunlap [Thu, 17 Mar 2022 15:39:39 +0000 (08:39 -0700)]
clocksource: acpi_pm: fix return value of __setup handler

[ Upstream commit 6a861abceecb68497dd82a324fee45a5332dcece ]

__setup() handlers should return 1 to obsolete_checksetup() in
init/main.c to indicate that the boot option has been handled.
A return of 0 causes the boot option/value to be listed as an Unknown
kernel parameter and added to init's (limited) environment strings.

The __setup() handler interface isn't meant to handle negative return
values -- they are non-zero, so they mean "handled" (like a return
value of 1 does), but that's just a quirk. So return 1 from
parse_pmtmr(). Also print a warning message if kstrtouint() returns
an error.

Fixes: 6b148507d3d0 ("pmtmr: allow command line override of ioport")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agohwmon: (pmbus) Add Vin unit off handling
Brandon Wyman [Thu, 17 Mar 2022 23:21:23 +0000 (23:21 +0000)]
hwmon: (pmbus) Add Vin unit off handling

[ Upstream commit a5436af598779219b375c1977555c82def1c35d0 ]

If there is an input undervoltage fault, reported in STATUS_INPUT
command response, there is quite likely a "Unit Off For Insufficient
Input Voltage" condition as well.

Add a constant for bit 3 of STATUS_INPUT. Update the Vin limit
attributes to include both bits in the mask for clearing faults.

If an input undervoltage fault occurs, causing a unit off for
insufficient input voltage, but the unit is off bit is not cleared, the
STATUS_WORD will not be updated to clear the input fault condition.
Including the unit is off bit (bit 3) allows for the input fault
condition to completely clear.

Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Link: https://lore.kernel.org/r/20220317232123.2103592-1-bjwyman@gmail.com
Fixes: b4ce237b7f7d3 ("hwmon: (pmbus) Introduce infrastructure to detect sensors and limit registers")
[groeck: Dropped unnecessary ()]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agocrypto: ccp - ccp_dmaengine_unregister release dma channels
Dāvis Mosāns [Mon, 28 Feb 2022 03:15:45 +0000 (05:15 +0200)]
crypto: ccp - ccp_dmaengine_unregister release dma channels

[ Upstream commit 54cce8ecb9254f971b40a72911c6da403720a2d2 ]

ccp_dmaengine_register adds dma_chan->device_node to dma_dev->channels list
but ccp_dmaengine_unregister didn't remove them.
That can cause crashes in various dmaengine methods that tries to use dma_dev->channels

Fixes: 58ea8abf4904 ("crypto: ccp - Register the CCP as a DMA...")
Signed-off-by: Dāvis Mosāns <davispuh@gmail.com>
Acked-by: John Allen <john.allen@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoACPI: APEI: fix return value of __setup handlers
Randy Dunlap [Sun, 6 Mar 2022 02:46:20 +0000 (18:46 -0800)]
ACPI: APEI: fix return value of __setup handlers

[ Upstream commit f3303ff649dbf7dcdc6a6e1a922235b12b3028f4 ]

__setup() handlers should return 1 to indicate that the boot option
has been handled. Returning 0 causes a boot option to be listed in
the Unknown kernel command line parameters and also added to init's
arg list (if no '=' sign) or environment list (if of the form 'a=b').

Unknown kernel command line parameters "erst_disable
  bert_disable hest_disable BOOT_IMAGE=/boot/bzImage-517rc6", will be
  passed to user space.

 Run /sbin/init as init process
   with arguments:
     /sbin/init
     erst_disable
     bert_disable
     hest_disable
   with environment:
     HOME=/
     TERM=linux
     BOOT_IMAGE=/boot/bzImage-517rc6

Fixes: a3e2acc5e37b ("ACPI / APEI: Add Boot Error Record Table (BERT) support")
Fixes: a08f82d08053 ("ACPI, APEI, Error Record Serialization Table (ERST) support")
Fixes: 9dc966641677 ("ACPI, APEI, HEST table parsing")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agocrypto: vmx - add missing dependencies
Petr Vorel [Wed, 23 Feb 2022 15:11:15 +0000 (16:11 +0100)]
crypto: vmx - add missing dependencies

[ Upstream commit 647d41d3952d726d4ae49e853a9eff68ebad3b3f ]

vmx-crypto module depends on CRYPTO_AES, CRYPTO_CBC, CRYPTO_CTR or
CRYPTO_XTS, thus add them.

These dependencies are likely to be enabled, but if
CRYPTO_DEV_VMX=y && !CRYPTO_MANAGER_DISABLE_TESTS
and either of CRYPTO_AES, CRYPTO_CBC, CRYPTO_CTR or CRYPTO_XTS is built
as module or disabled, alg_test() from crypto/testmgr.c complains during
boot about failing to allocate the generic fallback implementations
(2 == ENOENT):

[    0.540953] Failed to allocate xts(aes) fallback: -2
[    0.541014] alg: skcipher: failed to allocate transform for p8_aes_xts: -2
[    0.541120] alg: self-tests for p8_aes_xts (xts(aes)) failed (rc=-2)
[    0.544440] Failed to allocate ctr(aes) fallback: -2
[    0.544497] alg: skcipher: failed to allocate transform for p8_aes_ctr: -2
[    0.544603] alg: self-tests for p8_aes_ctr (ctr(aes)) failed (rc=-2)
[    0.547992] Failed to allocate cbc(aes) fallback: -2
[    0.548052] alg: skcipher: failed to allocate transform for p8_aes_cbc: -2
[    0.548156] alg: self-tests for p8_aes_cbc (cbc(aes)) failed (rc=-2)
[    0.550745] Failed to allocate transformation for 'aes': -2
[    0.550801] alg: cipher: Failed to load transform for p8_aes: -2
[    0.550892] alg: self-tests for p8_aes (aes) failed (rc=-2)

Fixes: c07f5d3da643 ("crypto: vmx - Adding support for XTS")
Fixes: d2e3ae6f3aba ("crypto: vmx - Enabling VMX module for PPC64")

Suggested-by: Nicolai Stange <nstange@suse.de>
Signed-off-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agohwrng: atmel - disable trng on failure path
Claudiu Beznea [Mon, 21 Feb 2022 07:59:23 +0000 (09:59 +0200)]
hwrng: atmel - disable trng on failure path

[ Upstream commit a223ea9f89ab960eb254ba78429efd42eaf845eb ]

Call atmel_trng_disable() on failure path of probe.

Fixes: a1fa98d8116f ("hwrng: atmel - disable TRNG during suspend")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoPM: suspend: fix return value of __setup handler
Randy Dunlap [Mon, 28 Feb 2022 22:05:44 +0000 (14:05 -0800)]
PM: suspend: fix return value of __setup handler

[ Upstream commit 7a64ca17e4dd50d5f910769167f3553902777844 ]

If an invalid option is given for "test_suspend=<option>", the entire
string is added to init's environment, so return 1 instead of 0 from
the __setup handler.

  Unknown kernel command line parameters "BOOT_IMAGE=/boot/bzImage-517rc5
    test_suspend=invalid"

and

 Run /sbin/init as init process
   with arguments:
     /sbin/init
   with environment:
     HOME=/
     TERM=linux
     BOOT_IMAGE=/boot/bzImage-517rc5
     test_suspend=invalid

Fixes: 2ce986892faf ("PM / sleep: Enhance test_suspend option with repeat capability")
Fixes: 27ddcc6596e5 ("PM / sleep: Add state field to pm_states[] entries")
Fixes: a9d7052363a6 ("PM: Separate suspend to RAM functionality from core")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoPM: hibernate: fix __setup handler error handling
Randy Dunlap [Mon, 28 Feb 2022 22:05:32 +0000 (14:05 -0800)]
PM: hibernate: fix __setup handler error handling

[ Upstream commit ba7ffcd4c4da374b0f64666354eeeda7d3827131 ]

If an invalid value is used in "resumedelay=<seconds>", it is
silently ignored. Add a warning message and then let the __setup
handler return 1 to indicate that the kernel command line option
has been handled.

Fixes: 317cf7e5e85e3 ("PM / hibernate: convert simple_strtoul to kstrtoul")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: Igor Zhbanov <i.zhbanov@omprussia.ru>
Link: lore.kernel.org/r/64644a2f-4a20-bab3-1e15-3b2cdd0defe3@omprussia.ru
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agohwmon: (sch56xx-common) Replace WDOG_ACTIVE with WDOG_HW_RUNNING
Armin Wolf [Mon, 31 Jan 2022 21:19:35 +0000 (22:19 +0100)]
hwmon: (sch56xx-common) Replace WDOG_ACTIVE with WDOG_HW_RUNNING

[ Upstream commit 647d6f09bea7dacf4cdb6d4ea7e3051883955297 ]

If the watchdog was already enabled by the BIOS after booting, the
watchdog infrastructure needs to regularly send keepalives to
prevent a unexpected reset.
WDOG_ACTIVE only serves as an status indicator for userspace,
we want to use WDOG_HW_RUNNING instead.

Since my Fujitsu Esprimo P720 does not support the watchdog,
this change is compile-tested only.

Suggested-by: Guenter Roeck <linux@roeck-us.net>
Fixes: fb551405c0f8 (watchdog: sch56xx: Use watchdog core)
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20220131211935.3656-5-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agohwmon: (pmbus) Add mutex to regulator ops
Patrick Rudolph [Fri, 25 Feb 2022 16:06:09 +0000 (17:06 +0100)]
hwmon: (pmbus) Add mutex to regulator ops

[ Upstream commit 686d303ee6301261b422ea51e64833d7909a2c36 ]

On PMBUS devices with multiple pages, the regulator ops need to be
protected with the update mutex. This prevents accidentally changing
the page in a separate thread while operating on the PMBUS_OPERATION
register.

Tested on Infineon xdpe11280 while a separate thread polls for sensor
data.

Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Marcello Sylvester Bauer <sylv@sylv.io>
Link: https://lore.kernel.org/r/b991506bcbf665f7af185945f70bf9d5cf04637c.1645804976.git.sylv@sylv.io
Fixes: ddbb4db4ced1b ("hwmon: (pmbus) Add regulator support")
Cc: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agospi: pxa2xx-pci: Balance reference count for PCI DMA device
Andy Shevchenko [Wed, 23 Feb 2022 19:16:37 +0000 (21:16 +0200)]
spi: pxa2xx-pci: Balance reference count for PCI DMA device

[ Upstream commit 609d7ffdc42199a0ec949db057e3b4be6745d6c5 ]

The pci_get_slot() increases its reference count, the caller
must decrement the reference count by calling pci_dev_put().

Fixes: 743485ea3bee ("spi: pxa2xx-pci: Do a specific setup in a separate function")
Fixes: 25014521603f ("spi: pxa2xx-pci: Enable DMA for Intel Merrifield")
Reported-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220223191637.31147-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoselftests/x86: Add validity check and allow field splitting
Muhammad Usama Anjum [Mon, 14 Feb 2022 18:41:08 +0000 (23:41 +0500)]
selftests/x86: Add validity check and allow field splitting

[ Upstream commit b06e15ebd5bfb670f93c7f11a29b8299c1178bc6 ]

Add check to test if CC has a string. CC can have multiple sub-strings
like "ccache gcc". Erorr pops up if it is treated as single string and
double quotes are used around it. This can be fixed by removing the
quotes and not treating CC as a single string.

Fixes: e9886ace222e ("selftests, x86: Rework x86 target architecture detection")
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lkml.kernel.org/r/20220214184109.3739179-2-usama.anjum@collabora.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agospi: tegra114: Add missing IRQ check in tegra_spi_probe
Miaoqian Lin [Fri, 28 Jan 2022 16:52:38 +0000 (16:52 +0000)]
spi: tegra114: Add missing IRQ check in tegra_spi_probe

[ Upstream commit 4f92724d4b92c024e721063f520d66e11ca4b54b ]

This func misses checking for platform_get_irq()'s call and may passes the
negative error codes to request_threaded_irq(), which takes unsigned IRQ #,
causing it to fail with -EINVAL, overriding an original error code.
Stop calling request_threaded_irq() with invalid IRQ #s.

Fixes: f333a331adfa ("spi/tegra114: add spi driver")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220128165238.25615-1-linmq006@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agocrypto: mxs-dcp - Fix scatterlist processing
Tomas Paukrt [Sat, 22 Jan 2022 17:07:53 +0000 (18:07 +0100)]
crypto: mxs-dcp - Fix scatterlist processing

[ Upstream commit 28e9b6d8199a3f124682b143800c2dacdc3d70dd ]

This patch fixes a bug in scatterlist processing that may cause incorrect AES block encryption/decryption.

Fixes: 2e6d793e1bf0 ("crypto: mxs-dcp - Use sg_mapping_iter to copy data")
Signed-off-by: Tomas Paukrt <tomaspaukrt@email.cz>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agocrypto: authenc - Fix sleep in atomic context in decrypt_tail
Herbert Xu [Wed, 19 Jan 2022 06:58:40 +0000 (17:58 +1100)]
crypto: authenc - Fix sleep in atomic context in decrypt_tail

[ Upstream commit 66eae850333d639fc278d6f915c6fc01499ea893 ]

The function crypto_authenc_decrypt_tail discards its flags
argument and always relies on the flags from the original request
when starting its sub-request.

This is clearly wrong as it may cause the SLEEPABLE flag to be
set when it shouldn't.

Fixes: 92d95ba91772 ("crypto: authenc - Convert to new AEAD interface")
Reported-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agoPCI: pciehp: Clear cmd_busy bit in polling mode
Liguang Zhang [Thu, 11 Nov 2021 05:42:58 +0000 (13:42 +0800)]
PCI: pciehp: Clear cmd_busy bit in polling mode

commit 92912b175178c7e895f5e5e9f1e30ac30319162b upstream.

Writes to a Downstream Port's Slot Control register are PCIe hotplug
"commands."  If the Port supports Command Completed events, software must
wait for a command to complete before writing to Slot Control again.

pcie_do_write_cmd() sets ctrl->cmd_busy when it writes to Slot Control.  If
software notification is enabled, i.e., PCI_EXP_SLTCTL_HPIE and
PCI_EXP_SLTCTL_CCIE are set, ctrl->cmd_busy is cleared by pciehp_isr().

But when software notification is disabled, as it is when pcie_init()
powers off an empty slot, pcie_wait_cmd() uses pcie_poll_cmd() to poll for
command completion, and it neglects to clear ctrl->cmd_busy, which leads to
spurious timeouts:

  pcieport 0000:00:03.0: pciehp: Timeout on hotplug command 0x01c0 (issued 2264 msec ago)
  pcieport 0000:00:03.0: pciehp: Timeout on hotplug command 0x05c0 (issued 2288 msec ago)

Clear ctrl->cmd_busy in pcie_poll_cmd() when it detects a Command Completed
event (PCI_EXP_SLTSTA_CC).

[bhelgaas: commit log]
Fixes: a5dd4b4b0570 ("PCI: pciehp: Wait for hotplug command completion where necessary")
Link: https://lore.kernel.org/r/20211111054258.7309-1-zhangliguang@linux.alibaba.com
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215143
Link: https://lore.kernel.org/r/20211126173309.GA12255@wunner.de
Signed-off-by: Liguang Zhang <zhangliguang@linux.alibaba.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agobrcmfmac: pcie: Replace brcmf_pcie_copy_mem_todev with memcpy_toio
Hector Martin [Mon, 31 Jan 2022 16:07:09 +0000 (01:07 +0900)]
brcmfmac: pcie: Replace brcmf_pcie_copy_mem_todev with memcpy_toio

commit 9466987f246758eb7e9071ae58005253f631271e upstream.

The alignment check was wrong (e.g. & 4 instead of & 3), and the logic
was also inefficient if the length was not a multiple of 4, since it
would needlessly fall back to copying the entire buffer bytewise.

We already have a perfectly good memcpy_toio function, so just call that
instead of rolling our own copy logic here. brcmf_pcie_init_ringbuffers
was already using it anyway.

Fixes: 9e37f045d5e7 ("brcmfmac: Adding PCIe bus layer support.")
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220131160713.245637-6-marcan@marcan.st
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agobrcmfmac: firmware: Allocate space for default boardrev in nvram
Hector Martin [Mon, 31 Jan 2022 16:07:06 +0000 (01:07 +0900)]
brcmfmac: firmware: Allocate space for default boardrev in nvram

commit d19d8e3ba256f81ea4a27209dbbd1f0a00ef1903 upstream.

If boardrev is missing from the NVRAM we add a default one, but this
might need more space in the output buffer than was allocated. Ensure
we have enough padding for this in the buffer.

Fixes: 46f2b38a91b0 ("brcmfmac: insert default boardrev in nvram data if missing")
Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Cc: stable@vger.kernel.org
Signed-off-by: Hector Martin <marcan@marcan.st>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220131160713.245637-3-marcan@marcan.st
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agomedia: davinci: vpif: fix unbalanced runtime PM get
Johan Hovold [Wed, 22 Dec 2021 14:20:22 +0000 (15:20 +0100)]
media: davinci: vpif: fix unbalanced runtime PM get

commit 4a321de239213300a714fa0353a5f1272d381a44 upstream.

Make sure to balance the runtime PM usage counter on driver unbind.

Fixes: 407ccc65bfd2 ("[media] davinci: vpif: add pm_runtime support")
Cc: stable@vger.kernel.org # 3.9
Cc: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoDEC: Limit PMAX memory probing to R3k systems
Maciej W. Rozycki [Fri, 4 Mar 2022 20:16:23 +0000 (20:16 +0000)]
DEC: Limit PMAX memory probing to R3k systems

commit 244eae91a94c6dab82b3232967d10eeb9dfa21c6 upstream.

Recent tightening of the opcode table in binutils so as to consistently
disallow the assembly or disassembly of CP0 instructions not supported
by the processor architecture chosen has caused a regression like below:

arch/mips/dec/prom/locore.S: Assembler messages:
arch/mips/dec/prom/locore.S:29: Error: opcode not supported on this processor: r4600 (mips3) `rfe'

in a piece of code used to probe for memory with PMAX DECstation models,
which have non-REX firmware.  Those computers always have an R2000 CPU
and consequently the exception handler used in memory probing uses the
RFE instruction, which those processors use.

While adding 64-bit support this code was correctly excluded for 64-bit
configurations, however it should have also been excluded for irrelevant
32-bit configurations.  Do this now then, and only enable PMAX memory
probing for R3k systems.

Reported-by: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org # v2.6.12+
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agolib/raid6/test: fix multiple definition linking error
Dirk Müller [Tue, 8 Feb 2022 16:50:50 +0000 (17:50 +0100)]
lib/raid6/test: fix multiple definition linking error

commit a5359ddd052860bacf957e65fe819c63e974b3a6 upstream.

GCC 10+ defaults to -fno-common, which enforces proper declaration of
external references using "extern". without this change a link would
fail with:

  lib/raid6/test/algos.c:28: multiple definition of `raid6_call';
  lib/raid6/test/test.c:22: first defined here

the pq.h header that is included already includes an extern declaration
so we can just remove the redundant one here.

Cc: <stable@vger.kernel.org>
Signed-off-by: Dirk Müller <dmueller@suse.de>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agothermal: int340x: Increase bitmap size
Srinivas Pandruvada [Mon, 14 Mar 2022 22:08:55 +0000 (15:08 -0700)]
thermal: int340x: Increase bitmap size

commit 668f69a5f863b877bc3ae129efe9a80b6f055141 upstream.

The number of policies are 10, so can't be supported by the bitmap size
of u8.

Even though there are no platfoms with these many policies, but
for correctness increase to u32.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Fixes: 16fc8eca1975 ("thermal/int340x_thermal: Add additional UUIDs")
Cc: 5.1+ <stable@vger.kernel.org> # 5.1+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agocarl9170: fix missing bit-wise or operator for tx_params
Colin Ian King [Tue, 25 Jan 2022 00:44:06 +0000 (00:44 +0000)]
carl9170: fix missing bit-wise or operator for tx_params

commit 02a95374b5eebdbd3b6413fd7ddec151d2ea75a1 upstream.

Currently tx_params is being re-assigned with a new value and the
previous setting IEEE80211_HT_MCS_TX_RX_DIFF is being overwritten.
The assignment operator is incorrect, the original intent was to
bit-wise or the value in. Fix this by replacing the = operator
with |= instead.

Kudos to Christian Lamparter for suggesting the correct fix.

Fixes: fe8ee9ad80b2 ("carl9170: mac80211 glue and command interface")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Cc: <Stable@vger.kernel.org>
Acked-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220125004406.344422-1-colin.i.king@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoARM: dts: exynos: add missing HDMI supplies on SMDK5420
Krzysztof Kozlowski [Tue, 8 Feb 2022 17:18:15 +0000 (18:18 +0100)]
ARM: dts: exynos: add missing HDMI supplies on SMDK5420

commit 453a24ded415f7fce0499c6b0a2c7b28f84911f2 upstream.

Add required VDD supplies to HDMI block on SMDK5420.  Without them, the
HDMI driver won't probe.  Because of lack of schematics, use same
supplies as on Arndale Octa and Odroid XU3 boards (voltage matches).

Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20220208171823.226211-3-krzysztof.kozlowski@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoARM: dts: exynos: add missing HDMI supplies on SMDK5250
Krzysztof Kozlowski [Tue, 8 Feb 2022 17:18:14 +0000 (18:18 +0100)]
ARM: dts: exynos: add missing HDMI supplies on SMDK5250

commit 60a9914cb2061ba612a3f14f6ad329912b486360 upstream.

Add required VDD supplies to HDMI block on SMDK5250.  Without them, the
HDMI driver won't probe.  Because of lack of schematics, use same
supplies as on Arndale 5250 board (voltage matches).

Cc: <stable@vger.kernel.org> # v3.15+
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20220208171823.226211-2-krzysztof.kozlowski@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoARM: dts: exynos: fix UART3 pins configuration in Exynos5250
Krzysztof Kozlowski [Thu, 30 Dec 2021 19:53:23 +0000 (20:53 +0100)]
ARM: dts: exynos: fix UART3 pins configuration in Exynos5250

commit 372d7027fed43c8570018e124cf78b89523a1f8e upstream.

The gpa1-4 pin was put twice in UART3 pin configuration of Exynos5250,
instead of proper pin gpa1-5.

Fixes: f8bfe2b050f3 ("ARM: dts: add pin state information in client nodes for Exynos5 platforms")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20211230195325.328220-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoARM: dts: at91: sama5d2: Fix PMERRLOC resource size
Tudor Ambarus [Tue, 11 Jan 2022 13:23:01 +0000 (15:23 +0200)]
ARM: dts: at91: sama5d2: Fix PMERRLOC resource size

commit 0fb578a529ac7aca326a9fa475b4a6f58a756fda upstream.

PMERRLOC resource size was set to 0x100, which resulted in HSMC_ERRLOCx
register being truncated to offset x = 21, causing error correction to
fail if more than 22 bit errors and if 24 or 32 bit error correction
was supported.

Fixes: d9c41bf30cf8 ("ARM: dts: at91: Declare EBI/NAND controllers")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: <stable@vger.kernel.org> # 4.13.x
Acked-by: Alexander Dahl <ada@thorsis.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20220111132301.906712-1-tudor.ambarus@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agovideo: fbdev: atari: Atari 2 bpp (STe) palette bugfix
Michael Schmitz [Wed, 16 Feb 2022 07:26:25 +0000 (20:26 +1300)]
video: fbdev: atari: Atari 2 bpp (STe) palette bugfix

commit c8be5edbd36ceed2ff3d6b8f8e40643c3f396ea3 upstream.

The code to set the shifter STe palette registers has a long
standing operator precedence bug, manifesting as colors set
on a 2 bits per pixel frame buffer coming up with a distinctive
blue tint.

Add parentheses around the calculation of the per-color palette
data before shifting those into their respective bit field position.

This bug goes back a long way (2.4 days at the very least) so there
won't be a Fixes: tag.

Tested on ARAnyM as well on Falcon030 hardware.

Cc: stable@vger.kernel.org
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/all/CAMuHMdU3ievhXxKR_xi_v3aumnYW7UNUO6qMdhgfyWTyVSsCkQ@mail.gmail.com
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agovideo: fbdev: sm712fb: Fix crash in smtcfb_read()
Helge Deller [Sun, 27 Feb 2022 07:43:56 +0000 (08:43 +0100)]
video: fbdev: sm712fb: Fix crash in smtcfb_read()

commit bd771cf5c4254511cc4abb88f3dab3bd58bdf8e8 upstream.

Zheyu Ma reported this crash in the sm712fb driver when reading
three bytes from the framebuffer:

 BUG: unable to handle page fault for address: ffffc90001ffffff
 RIP: 0010:smtcfb_read+0x230/0x3e0
 Call Trace:
  vfs_read+0x198/0xa00
  ? do_sys_openat2+0x27d/0x350
  ? __fget_light+0x54/0x340
  ksys_read+0xce/0x190
  do_syscall_64+0x43/0x90

Fix it by removing the open-coded endianess fixup-code and
by moving the pointer post decrement out the fb_readl() function.

Reported-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Tested-by: Zheyu Ma <zheyuma97@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agodrivers: hamradio: 6pack: fix UAF bug caused by mod_timer()
Duoming Zhou [Thu, 17 Feb 2022 01:43:03 +0000 (09:43 +0800)]
drivers: hamradio: 6pack: fix UAF bug caused by mod_timer()

commit efe4186e6a1b54bf38b9e05450d43b0da1fd7739 upstream.

When a 6pack device is detaching, the sixpack_close() will act to cleanup
necessary resources. Although del_timer_sync() in sixpack_close()
won't return if there is an active timer, one could use mod_timer() in
sp_xmit_on_air() to wake up timer again by calling userspace syscall such
as ax25_sendmsg(), ax25_connect() and ax25_ioctl().

This unexpected waked handler, sp_xmit_on_air(), realizes nothing about
the undergoing cleanup and may still call pty_write() to use driver layer
resources that have already been released.

One of the possible race conditions is shown below:

      (USE)                      |      (FREE)
ax25_sendmsg()                   |
 ax25_queue_xmit()               |
  ...                            |
  sp_xmit()                      |
   sp_encaps()                   | sixpack_close()
    sp_xmit_on_air()             |  del_timer_sync(&sp->tx_t)
     mod_timer(&sp->tx_t,...)    |  ...
                                 |  unregister_netdev()
                                 |  ...
     (wait a while)              | tty_release()
                                 |  tty_release_struct()
                                 |   release_tty()
    sp_xmit_on_air()             |    tty_kref_put(tty_struct) //FREE
     pty_write(tty_struct) //USE |    ...

The corresponding fail log is shown below:
===============================================================
BUG: KASAN: use-after-free in __run_timers.part.0+0x170/0x470
Write of size 8 at addr ffff88800a652ab8 by task swapper/2/0
...
Call Trace:
  ...
  queue_work_on+0x3f/0x50
  pty_write+0xcd/0xe0pty_write+0xcd/0xe0
  sp_xmit_on_air+0xb2/0x1f0
  call_timer_fn+0x28/0x150
  __run_timers.part.0+0x3c2/0x470
  run_timer_softirq+0x3b/0x80
  __do_softirq+0xf1/0x380
  ...

This patch reorders the del_timer_sync() after the unregister_netdev()
to avoid UAF bugs. Because the unregister_netdev() is well synchronized,
it flushs out any pending queues, waits the refcount of net_device
decreases to zero and removes net_device from kernel. There is not any
running routines after executing unregister_netdev(). Therefore, we could
not arouse timer from userspace again.

Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Reviewed-by: Lin Ma <linma@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoACPI: properties: Consistently return -ENOENT if there are no more references
Sakari Ailus [Fri, 14 Jan 2022 11:24:49 +0000 (13:24 +0200)]
ACPI: properties: Consistently return -ENOENT if there are no more references

commit babc92da5928f81af951663fc436997352e02d3a upstream.

__acpi_node_get_property_reference() is documented to return -ENOENT if
the caller requests a property reference at an index that does not exist,
not -EINVAL which it actually does.

Fix this by returning -ENOENT consistenly, independently of whether the
property value is a plain reference or a package.

Fixes: c343bc2ce2c6 ("ACPI: properties: Align return codes of __acpi_node_get_property_reference()")
Cc: 4.14+ <stable@vger.kernel.org> # 4.14+
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agodrbd: fix potential silent data corruption
Lars Ellenberg [Wed, 30 Mar 2022 18:55:51 +0000 (20:55 +0200)]
drbd: fix potential silent data corruption

commit f4329d1f848ac35757d9cc5487669d19dfc5979c upstream.

Scenario:
---------

bio chain generated by blk_queue_split().
Some split bio fails and propagates its error status to the "parent" bio.
But then the (last part of the) parent bio itself completes without error.

We would clobber the already recorded error status with BLK_STS_OK,
causing silent data corruption.

Reproducer:
-----------

How to trigger this in the real world within seconds:

DRBD on top of degraded parity raid,
small stripe_cache_size, large read_ahead setting.
Drop page cache (sysctl vm.drop_caches=1, fadvise "DONTNEED",
umount and mount again, "reboot").

Cause significant read ahead.

Large read ahead request is split by blk_queue_split().
Parts of the read ahead that are already in the stripe cache,
or find an available stripe cache to use, can be serviced.
Parts of the read ahead that would need "too much work",
would need to wait for a "stripe_head" to become available,
are rejected immediately.

For larger read ahead requests that are split in many pieces, it is very
likely that some "splits" will be serviced, but then the stripe cache is
exhausted/busy, and the remaining ones will be rejected.

Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com>
Cc: <stable@vger.kernel.org> # 4.13.x
Link: https://lore.kernel.org/r/20220330185551.3553196-1-christoph.boehmwalder@linbit.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoALSA: cs4236: fix an incorrect NULL check on list iterator
Xiaomeng Tong [Sun, 27 Mar 2022 06:08:22 +0000 (14:08 +0800)]
ALSA: cs4236: fix an incorrect NULL check on list iterator

commit 0112f822f8a6d8039c94e0bc9b264d7ffc5d4704 upstream.

The bug is here:
err = snd_card_cs423x_pnp(dev, card->private_data, pdev, cdev);

The list iterator value 'cdev' will *always* be set and non-NULL
by list_for_each_entry(), so it is incorrect to assume that the
iterator value will be NULL if the list is empty or no element
is found.

To fix the bug, use a new variable 'iter' as the list iterator,
while use the original variable 'cdev' as a dedicated pointer
to point to the found element. And snd_card_cs423x_pnp() itself
has NULL check for cdev.

Cc: stable@vger.kernel.org
Fixes: c2b73d1458014 ("ALSA: cs4236: cs4232 and cs4236 driver merge to solve PnP BIOS detection")
Signed-off-by: Xiaomeng Tong <xiam0nd.tong@gmail.com>
Link: https://lore.kernel.org/r/20220327060822.4735-1-xiam0nd.tong@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoRevert "Input: clear BTN_RIGHT/MIDDLE on buttonpads"
José Expósito [Fri, 1 Apr 2022 04:15:36 +0000 (21:15 -0700)]
Revert "Input: clear BTN_RIGHT/MIDDLE on buttonpads"

commit 8b188fba75195745026e11d408e4a7e94e01d701 upstream.

This reverts commit 37ef4c19b4c659926ce65a7ac709ceaefb211c40.

The touchpad present in the Dell Precision 7550 and 7750 laptops
reports a HID_DG_BUTTONTYPE of type MT_BUTTONTYPE_CLICKPAD. However,
the device is not a clickpad, it is a touchpad with physical buttons.

In order to fix this issue, a quirk for the device was introduced in
libinput [1] [2] to disable the INPUT_PROP_BUTTONPAD property:

[Precision 7x50 Touchpad]
MatchBus=i2c
MatchUdevType=touchpad
MatchDMIModalias=dmi:*svnDellInc.:pnPrecision7?50*
AttrInputPropDisable=INPUT_PROP_BUTTONPAD

However, because of the change introduced in 37ef4c19b4 ("Input: clear
BTN_RIGHT/MIDDLE on buttonpads") the BTN_RIGHT key bit is not mapped
anymore breaking the device right click button and making impossible to
workaround it in user space.

In order to avoid breakage on other present or future devices, revert
the patch causing the issue.

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220321184404.20025-1-jose.exposito89@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoqed: validate and restrict untrusted VFs vlan promisc mode
Manish Chopra [Wed, 2 Mar 2022 10:52:22 +0000 (02:52 -0800)]
qed: validate and restrict untrusted VFs vlan promisc mode

commit cbcc44db2cf7b836896733acc0e5ea966136ed22 upstream.

Today when VFs are put in promiscuous mode, they can request PF
to configure device for them to receive all VLANs traffic regardless
of what vlan is configured by the PF (via ip link) and PF allows this
config request regardless of whether VF is trusted or not.

From security POV, when VLAN is configured for VF through PF (via ip link),
honour such config requests from VF only when they are configured to be
trusted, otherwise restrict such VFs vlan promisc mode config.

Cc: stable@vger.kernel.org
Fixes: f990c82c385b ("qed*: Add support for ndo_set_vf_trust")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoqed: display VF trust config
Manish Chopra [Wed, 2 Mar 2022 10:52:21 +0000 (02:52 -0800)]
qed: display VF trust config

commit 4e6e6bec7440b9b76f312f28b1f4e944eebb3abc upstream.

Driver does support SR-IOV VFs trust configuration but
it does not display it when queried via ip link utility.

Cc: stable@vger.kernel.org
Fixes: f990c82c385b ("qed*: Add support for ndo_set_vf_trust")
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoscsi: libsas: Fix sas_ata_qc_issue() handling of NCQ NON DATA commands
Damien Le Moal [Sun, 20 Feb 2022 03:17:40 +0000 (12:17 +0900)]
scsi: libsas: Fix sas_ata_qc_issue() handling of NCQ NON DATA commands

commit 8454563e4c2aafbfb81a383ab423ea8b9b430a25 upstream.

To detect for the DMA_NONE (no data transfer) DMA direction,
sas_ata_qc_issue() tests if the command protocol is ATA_PROT_NODATA.  This
test does not include the ATA_CMD_NCQ_NON_DATA command as this command
protocol is defined as ATA_PROT_NCQ_NODATA (equal to ATA_PROT_FLAG_NCQ) and
not as ATA_PROT_NODATA.

To include both NCQ and non-NCQ commands when testing for the DMA_NONE DMA
direction, use "!ata_is_data()".

Link: https://lore.kernel.org/r/20220220031810.738362-2-damien.lemoal@opensource.wdc.com
Fixes: 176ddd89171d ("scsi: libsas: Reset num_scatter if libata marks qc as NODATA")
Cc: stable@vger.kernel.org
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agomempolicy: mbind_range() set_policy() after vma_merge()
Hugh Dickins [Tue, 22 Mar 2022 21:45:59 +0000 (14:45 -0700)]
mempolicy: mbind_range() set_policy() after vma_merge()

commit 4e0906008cdb56381638aa17d9c32734eae6d37a upstream.

v2.6.34 commit 9d8cebd4bcd7 ("mm: fix mbind vma merge problem") introduced
vma_merge() to mbind_range(); but unlike madvise, mlock and mprotect, it
put a "continue" to next vma where its precedents go to update flags on
current vma before advancing: that left vma with the wrong setting in the
infamous vma_merge() case 8.

v3.10 commit 1444f92c8498 ("mm: merging memory blocks resets mempolicy")
tried to fix that in vma_adjust(), without fully understanding the issue.

v3.11 commit 3964acd0dbec ("mm: mempolicy: fix mbind_range() &&
vma_adjust() interaction") reverted that, and went about the fix in the
right way, but chose to optimize out an unnecessary mpol_dup() with a
prior mpol_equal() test.  But on tmpfs, that also pessimized out the vital
call to its ->set_policy(), leaving the new mbind unenforced.

The user visible effect was that the pages got allocated on the local
node (happened to be 0), after the mbind() caller had specifically
asked for them to be allocated on node 1.  There was not any page
migration involved in the case reported: the pages simply got allocated
on the wrong node.

Just delete that optimization now (though it could be made conditional on
vma not having a set_policy).  Also remove the "next" variable: it turned
out to be blameless, but also pointless.

Link: https://lkml.kernel.org/r/319e4db9-64ae-4bca-92f0-ade85d342ff@google.com
Fixes: 3964acd0dbec ("mm: mempolicy: fix mbind_range() && vma_adjust() interaction")
Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agomm/pages_alloc.c: don't create ZONE_MOVABLE beyond the end of a node
Alistair Popple [Tue, 22 Mar 2022 21:43:26 +0000 (14:43 -0700)]
mm/pages_alloc.c: don't create ZONE_MOVABLE beyond the end of a node

commit ddbc84f3f595cf1fc8234a191193b5d20ad43938 upstream.

ZONE_MOVABLE uses the remaining memory in each node.  Its starting pfn
is also aligned to MAX_ORDER_NR_PAGES.  It is possible for the remaining
memory in a node to be less than MAX_ORDER_NR_PAGES, meaning there is
not enough room for ZONE_MOVABLE on that node.

Unfortunately this condition is not checked for.  This leads to
zone_movable_pfn[] getting set to a pfn greater than the last pfn in a
node.

calculate_node_totalpages() then sets zone->present_pages to be greater
than zone->spanned_pages which is invalid, as spanned_pages represents
the maximum number of pages in a zone assuming no holes.

Subsequently it is possible free_area_init_core() will observe a zone of
size zero with present pages.  In this case it will skip setting up the
zone, including the initialisation of free_lists[].

However populated_zone() checks zone->present_pages to see if a zone has
memory available.  This is used by iterators such as
walk_zones_in_node().  pagetypeinfo_showfree() uses this to walk the
free_list of each zone in each node, which are assumed to be initialised
due to the zone not being empty.

As free_area_init_core() never initialised the free_lists[] this results
in the following kernel crash when trying to read /proc/pagetypeinfo:

  BUG: kernel NULL pointer dereference, address: 0000000000000000
  #PF: supervisor read access in kernel mode
  #PF: error_code(0x0000) - not-present page
  PGD 0 P4D 0
  Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC NOPTI
  CPU: 0 PID: 456 Comm: cat Not tainted 5.16.0 #461
  Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
  RIP: 0010:pagetypeinfo_show+0x163/0x460
  Code: 9e 82 e8 80 57 0e 00 49 8b 06 b9 01 00 00 00 4c 39 f0 75 16 e9 65 02 00 00 48 83 c1 01 48 81 f9 a0 86 01 00 0f 84 48 02 00 00 <48> 8b 00 4c 39 f0 75 e7 48 c7 c2 80 a2 e2 82 48 c7 c6 79 ef e3 82
  RSP: 0018:ffffc90001c4bd10 EFLAGS: 00010003
  RAX: 0000000000000000 RBX: ffff88801105f638 RCX: 0000000000000001
  RDX: 0000000000000001 RSI: 000000000000068b RDI: ffff8880163dc68b
  RBP: ffffc90001c4bd90 R08: 0000000000000001 R09: ffff8880163dc67e
  R10: 656c6261766f6d6e R11: 6c6261766f6d6e55 R12: ffff88807ffb4a00
  R13: ffff88807ffb49f8 R14: ffff88807ffb4580 R15: ffff88807ffb3000
  FS:  00007f9c83eff5c0(0000) GS:ffff88807dc00000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000000000 CR3: 0000000013c8e000 CR4: 0000000000350ef0
  Call Trace:
   seq_read_iter+0x128/0x460
   proc_reg_read_iter+0x51/0x80
   new_sync_read+0x113/0x1a0
   vfs_read+0x136/0x1d0
   ksys_read+0x70/0xf0
   __x64_sys_read+0x1a/0x20
   do_syscall_64+0x3b/0xc0
   entry_SYSCALL_64_after_hwframe+0x44/0xae

Fix this by checking that the aligned zone_movable_pfn[] does not exceed
the end of the node, and if it does skip creating a movable zone on this
node.

Link: https://lkml.kernel.org/r/20220215025831.2113067-1-apopple@nvidia.com
Fixes: 2a1e274acf0b ("Create the ZONE_MOVABLE zone")
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agojffs2: fix memory leak in jffs2_scan_medium
Baokun Li [Fri, 14 Jan 2022 10:28:54 +0000 (18:28 +0800)]
jffs2: fix memory leak in jffs2_scan_medium

commit 9cdd3128874f5fe759e2c4e1360ab7fb96a8d1df upstream.

If an error is returned in jffs2_scan_eraseblock() and some memory
has been added to the jffs2_summary *s, we can observe the following
kmemleak report:

--------------------------------------------
unreferenced object 0xffff88812b889c40 (size 64):
  comm "mount", pid 692, jiffies 4294838325 (age 34.288s)
  hex dump (first 32 bytes):
    40 48 b5 14 81 88 ff ff 01 e0 31 00 00 00 50 00  @H........1...P.
    00 00 01 00 00 00 01 00 00 00 02 00 00 00 09 08  ................
  backtrace:
    [<ffffffffae93a3a3>] __kmalloc+0x613/0x910
    [<ffffffffaf423b9c>] jffs2_sum_add_dirent_mem+0x5c/0xa0
    [<ffffffffb0f3afa8>] jffs2_scan_medium.cold+0x36e5/0x4794
    [<ffffffffb0f3dbe1>] jffs2_do_mount_fs.cold+0xa7/0x2267
    [<ffffffffaf40acf3>] jffs2_do_fill_super+0x383/0xc30
    [<ffffffffaf40c00a>] jffs2_fill_super+0x2ea/0x4c0
    [<ffffffffb0315d64>] mtd_get_sb+0x254/0x400
    [<ffffffffb0315f5f>] mtd_get_sb_by_nr+0x4f/0xd0
    [<ffffffffb0316478>] get_tree_mtd+0x498/0x840
    [<ffffffffaf40bd15>] jffs2_get_tree+0x25/0x30
    [<ffffffffae9f358d>] vfs_get_tree+0x8d/0x2e0
    [<ffffffffaea7a98f>] path_mount+0x50f/0x1e50
    [<ffffffffaea7c3d7>] do_mount+0x107/0x130
    [<ffffffffaea7c5c5>] __se_sys_mount+0x1c5/0x2f0
    [<ffffffffaea7c917>] __x64_sys_mount+0xc7/0x160
    [<ffffffffb10142f5>] do_syscall_64+0x45/0x70
unreferenced object 0xffff888114b54840 (size 32):
  comm "mount", pid 692, jiffies 4294838325 (age 34.288s)
  hex dump (first 32 bytes):
    c0 75 b5 14 81 88 ff ff 02 e0 02 00 00 00 02 00  .u..............
    00 00 84 00 00 00 44 00 00 00 6b 6b 6b 6b 6b a5  ......D...kkkkk.
  backtrace:
    [<ffffffffae93be24>] kmem_cache_alloc_trace+0x584/0x880
    [<ffffffffaf423b04>] jffs2_sum_add_inode_mem+0x54/0x90
    [<ffffffffb0f3bd44>] jffs2_scan_medium.cold+0x4481/0x4794
    [...]
unreferenced object 0xffff888114b57280 (size 32):
  comm "mount", pid 692, jiffies 4294838393 (age 34.357s)
  hex dump (first 32 bytes):
    10 d5 6c 11 81 88 ff ff 08 e0 05 00 00 00 01 00  ..l.............
    00 00 38 02 00 00 28 00 00 00 6b 6b 6b 6b 6b a5  ..8...(...kkkkk.
  backtrace:
    [<ffffffffae93be24>] kmem_cache_alloc_trace+0x584/0x880
    [<ffffffffaf423c34>] jffs2_sum_add_xattr_mem+0x54/0x90
    [<ffffffffb0f3a24f>] jffs2_scan_medium.cold+0x298c/0x4794
    [...]
unreferenced object 0xffff8881116cd510 (size 16):
  comm "mount", pid 692, jiffies 4294838395 (age 34.355s)
  hex dump (first 16 bytes):
    00 00 00 00 00 00 00 00 09 e0 60 02 00 00 6b a5  ..........`...k.
  backtrace:
    [<ffffffffae93be24>] kmem_cache_alloc_trace+0x584/0x880
    [<ffffffffaf423cc4>] jffs2_sum_add_xref_mem+0x54/0x90
    [<ffffffffb0f3b2e3>] jffs2_scan_medium.cold+0x3a20/0x4794
    [...]
--------------------------------------------

Therefore, we should call jffs2_sum_reset_collected(s) on exit to
release the memory added in s. In addition, a new tag "out_buf" is
added to prevent the NULL pointer reference caused by s being NULL.
(thanks to Zhang Yi for this analysis)

Fixes: e631ddba5887 ("[JFFS2] Add erase block summary support (mount time improvement)")
Cc: stable@vger.kernel.org
Co-developed-with: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agojffs2: fix memory leak in jffs2_do_mount_fs
Baokun Li [Fri, 14 Jan 2022 10:28:53 +0000 (18:28 +0800)]
jffs2: fix memory leak in jffs2_do_mount_fs

commit d051cef784de4d54835f6b6836d98a8f6935772c upstream.

If jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error,
we can observe the following kmemleak report:

--------------------------------------------
unreferenced object 0xffff88811b25a640 (size 64):
  comm "mount", pid 691, jiffies 4294957728 (age 71.952s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffffa493be24>] kmem_cache_alloc_trace+0x584/0x880
    [<ffffffffa5423a06>] jffs2_sum_init+0x86/0x130
    [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0
    [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30
    [<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0
    [...]
unreferenced object 0xffff88812c760000 (size 65536):
  comm "mount", pid 691, jiffies 4294957728 (age 71.952s)
  hex dump (first 32 bytes):
    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................
    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................
  backtrace:
    [<ffffffffa493a449>] __kmalloc+0x6b9/0x910
    [<ffffffffa5423a57>] jffs2_sum_init+0xd7/0x130
    [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0
    [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30
    [<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0
    [...]
--------------------------------------------

This is because the resources allocated in jffs2_sum_init() are not
released. Call jffs2_sum_exit() to release these resources to solve
the problem.

Fixes: e631ddba5887 ("[JFFS2] Add erase block summary support (mount time improvement)")
Cc: stable@vger.kernel.org
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agojffs2: fix use-after-free in jffs2_clear_xattr_subsystem
Baokun Li [Tue, 28 Dec 2021 12:54:30 +0000 (20:54 +0800)]
jffs2: fix use-after-free in jffs2_clear_xattr_subsystem

commit 4c7c44ee1650677fbe89d86edbad9497b7679b5c upstream.

When we mount a jffs2 image, assume that the first few blocks of
the image are normal and contain at least one xattr-related inode,
but the next block is abnormal. As a result, an error is returned
in jffs2_scan_eraseblock(). jffs2_clear_xattr_subsystem() is then
called in jffs2_build_filesystem() and then again in
jffs2_do_fill_super().

Finally we can observe the following report:
 ==================================================================
 BUG: KASAN: use-after-free in jffs2_clear_xattr_subsystem+0x95/0x6ac
 Read of size 8 at addr ffff8881243384e0 by task mount/719

 Call Trace:
  dump_stack+0x115/0x16b
  jffs2_clear_xattr_subsystem+0x95/0x6ac
  jffs2_do_fill_super+0x84f/0xc30
  jffs2_fill_super+0x2ea/0x4c0
  mtd_get_sb+0x254/0x400
  mtd_get_sb_by_nr+0x4f/0xd0
  get_tree_mtd+0x498/0x840
  jffs2_get_tree+0x25/0x30
  vfs_get_tree+0x8d/0x2e0
  path_mount+0x50f/0x1e50
  do_mount+0x107/0x130
  __se_sys_mount+0x1c5/0x2f0
  __x64_sys_mount+0xc7/0x160
  do_syscall_64+0x45/0x70
  entry_SYSCALL_64_after_hwframe+0x44/0xa9

 Allocated by task 719:
  kasan_save_stack+0x23/0x60
  __kasan_kmalloc.constprop.0+0x10b/0x120
  kasan_slab_alloc+0x12/0x20
  kmem_cache_alloc+0x1c0/0x870
  jffs2_alloc_xattr_ref+0x2f/0xa0
  jffs2_scan_medium.cold+0x3713/0x4794
  jffs2_do_mount_fs.cold+0xa7/0x2253
  jffs2_do_fill_super+0x383/0xc30
  jffs2_fill_super+0x2ea/0x4c0
 [...]

 Freed by task 719:
  kmem_cache_free+0xcc/0x7b0
  jffs2_free_xattr_ref+0x78/0x98
  jffs2_clear_xattr_subsystem+0xa1/0x6ac
  jffs2_do_mount_fs.cold+0x5e6/0x2253
  jffs2_do_fill_super+0x383/0xc30
  jffs2_fill_super+0x2ea/0x4c0
 [...]

 The buggy address belongs to the object at ffff8881243384b8
  which belongs to the cache jffs2_xattr_ref of size 48
 The buggy address is located 40 bytes inside of
  48-byte region [ffff8881243384b8ffff8881243384e8)
 [...]
 ==================================================================

The triggering of the BUG is shown in the following stack:
-----------------------------------------------------------
jffs2_fill_super
  jffs2_do_fill_super
    jffs2_do_mount_fs
      jffs2_build_filesystem
        jffs2_scan_medium
          jffs2_scan_eraseblock        <--- ERROR
        jffs2_clear_xattr_subsystem    <--- free
    jffs2_clear_xattr_subsystem        <--- free again
-----------------------------------------------------------

An error is returned in jffs2_do_mount_fs(). If the error is returned
by jffs2_sum_init(), the jffs2_clear_xattr_subsystem() does not need to
be executed. If the error is returned by jffs2_build_filesystem(), the
jffs2_clear_xattr_subsystem() also does not need to be executed again.
So move jffs2_clear_xattr_subsystem() from 'out_inohash' to 'out_root'
to fix this UAF problem.

Fixes: aa98d7cf59b5 ("[JFFS2][XATTR] XATTR support on JFFS2 (version. 5)")
Cc: stable@vger.kernel.org
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agocan: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path
Hangyu Hua [Mon, 28 Feb 2022 08:36:39 +0000 (16:36 +0800)]
can: ems_usb: ems_usb_start_xmit(): fix double dev_kfree_skb() in error path

commit c70222752228a62135cee3409dccefd494a24646 upstream.

There is no need to call dev_kfree_skb() when usb_submit_urb() fails
beacause can_put_echo_skb() deletes the original skb and
can_free_echo_skb() deletes the cloned skb.

Link: https://lore.kernel.org/all/20220228083639.38183-1-hbh25y@gmail.com
Fixes: 702171adeed3 ("ems_usb: Added support for EMS CPC-USB/ARM7 CAN/USB interface")
Cc: stable@vger.kernel.org
Cc: Sebastian Haas <haas@ems-wuensche.com>
Signed-off-by: Hangyu Hua <hbh25y@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agopinctrl: samsung: drop pin banks references on error paths
Krzysztof Kozlowski [Tue, 11 Jan 2022 20:13:59 +0000 (21:13 +0100)]
pinctrl: samsung: drop pin banks references on error paths

commit 50ebd19e3585b9792e994cfa8cbee8947fe06371 upstream.

The driver iterates over its devicetree children with
for_each_child_of_node() and stores for later found node pointer.  This
has to be put in error paths to avoid leak during re-probing.

Fixes: ab663789d697 ("pinctrl: samsung: Match pin banks with their device nodes")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Link: https://lore.kernel.org/r/20220111201426.326777-2-krzysztof.kozlowski@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoNFSD: prevent underflow in nfssvc_decode_writeargs()
Dan Carpenter [Tue, 15 Mar 2022 10:30:09 +0000 (13:30 +0300)]
NFSD: prevent underflow in nfssvc_decode_writeargs()

commit 184416d4b98509fb4c3d8fc3d6dc1437896cc159 upstream.

Smatch complains:

fs/nfsd/nfsxdr.c:341 nfssvc_decode_writeargs()
warn: no lower bound on 'args->len'

Change the type to unsigned to prevent this issue.

Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoSUNRPC: avoid race between mod_timer() and del_timer_sync()
NeilBrown [Tue, 8 Mar 2022 02:42:17 +0000 (13:42 +1100)]
SUNRPC: avoid race between mod_timer() and del_timer_sync()

commit 3848e96edf4788f772d83990022fa7023a233d83 upstream.

xprt_destory() claims XPRT_LOCKED and then calls del_timer_sync().
Both xprt_unlock_connect() and xprt_release() call
 ->release_xprt()
which drops XPRT_LOCKED and *then* xprt_schedule_autodisconnect()
which calls mod_timer().

This may result in mod_timer() being called *after* del_timer_sync().
When this happens, the timer may fire long after the xprt has been freed,
and run_timer_softirq() will probably crash.

The pairing of ->release_xprt() and xprt_schedule_autodisconnect() is
always called under ->transport_lock.  So if we take ->transport_lock to
call del_timer_sync(), we can be sure that mod_timer() will run first
(if it runs at all).

Cc: stable@vger.kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoDocumentation: update stable tree link
Bagas Sanjaya [Mon, 14 Mar 2022 11:33:29 +0000 (18:33 +0700)]
Documentation: update stable tree link

commit 555d44932c67e617d89bc13c81c7efac5b51fcfa upstream.

The link to stable tree is redirected to
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git. Update
accordingly.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: stable@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20220314113329.485372-6-bagasdotme@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoDocumentation: add link to stable release candidate tree
Bagas Sanjaya [Mon, 14 Mar 2022 11:33:28 +0000 (18:33 +0700)]
Documentation: add link to stable release candidate tree

commit 587d39b260c4d090166314d64be70b1f6a26b0b5 upstream.

There is also stable release candidate tree. Mention it, however with a
warning that the tree is for testing purposes.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: stable@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20220314113329.485372-5-bagasdotme@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE
Jann Horn [Sat, 19 Mar 2022 01:08:37 +0000 (02:08 +0100)]
ptrace: Check PTRACE_O_SUSPEND_SECCOMP permission on PTRACE_SEIZE

commit ee1fee900537b5d9560e9f937402de5ddc8412f3 upstream.

Setting PTRACE_O_SUSPEND_SECCOMP is supposed to be a highly privileged
operation because it allows the tracee to completely bypass all seccomp
filters on kernels with CONFIG_CHECKPOINT_RESTORE=y. It is only supposed to
be settable by a process with global CAP_SYS_ADMIN, and only if that
process is not subject to any seccomp filters at all.

However, while these permission checks were done on the PTRACE_SETOPTIONS
path, they were missing on the PTRACE_SEIZE path, which also sets
user-specified ptrace flags.

Move the permissions checks out into a helper function and let both
ptrace_attach() and ptrace_setoptions() call it.

Cc: stable@kernel.org
Fixes: 13c4a90119d2 ("seccomp: add ptrace options for suspend/resume")
Signed-off-by: Jann Horn <jannh@google.com>
Link: https://lkml.kernel.org/r/20220319010838.1386861-1-jannh@google.com
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoclk: uniphier: Fix fixed-rate initialization
Kunihiko Hayashi [Wed, 9 Mar 2022 06:55:18 +0000 (15:55 +0900)]
clk: uniphier: Fix fixed-rate initialization

commit ca85a66710a8a1f6b0719397225c3e9ee0abb692 upstream.

Fixed-rate clocks in UniPhier don't have any parent clocks, however,
initial data "init.flags" isn't initialized, so it might be determined
that there is a parent clock for fixed-rate clock.

This sets init.flags to zero as initialization.

Cc: <stable@vger.kernel.org>
Fixes: 734d82f4a678 ("clk: uniphier: add core support code for UniPhier clock driver")
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Link: https://lore.kernel.org/r/1646808918-30899-1-git-send-email-hayashi.kunihiko@socionext.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoiio: inkern: make a best effort on offset calculation
Liam Beguin [Sat, 8 Jan 2022 20:53:06 +0000 (15:53 -0500)]
iio: inkern: make a best effort on offset calculation

commit ca85123354e1a65a22170286387b4791997fe864 upstream.

iio_convert_raw_to_processed_unlocked() assumes the offset is an
integer. Make a best effort to get a valid offset value for fractional
cases without breaking implicit truncations.

Fixes: 48e44ce0f881 ("iio:inkern: Add function to read the processed value")
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220108205319.2046348-4-liambeguin@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoiio: inkern: apply consumer scale when no channel scale is available
Liam Beguin [Sat, 8 Jan 2022 20:53:05 +0000 (15:53 -0500)]
iio: inkern: apply consumer scale when no channel scale is available

commit 14b457fdde38de594a4bc4bd9075019319d978da upstream.

When a consumer calls iio_read_channel_processed() and no channel scale
is available, it's assumed that the scale is one and the raw value is
returned as expected.

On the other hand, if the consumer calls iio_convert_raw_to_processed()
the scaling factor requested by the consumer is not applied.

This for example causes the consumer to process mV when expecting uV.
Make sure to always apply the scaling factor requested by the consumer.

Fixes: adc8ec5ff183 ("iio: inkern: pass through raw values if no scaling")
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220108205319.2046348-3-liambeguin@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoiio: inkern: apply consumer scale on IIO_VAL_INT cases
Liam Beguin [Sat, 8 Jan 2022 20:53:04 +0000 (15:53 -0500)]
iio: inkern: apply consumer scale on IIO_VAL_INT cases

commit 1bca97ff95c732a516ebb68da72814194980e0a5 upstream.

When a consumer calls iio_read_channel_processed() and the channel has
an integer scale, the scale channel scale is applied and the processed
value is returned as expected.

On the other hand, if the consumer calls iio_convert_raw_to_processed()
the scaling factor requested by the consumer is not applied.

This for example causes the consumer to process mV when expecting uV.
Make sure to always apply the scaling factor requested by the consumer.

Fixes: 48e44ce0f881 ("iio:inkern: Add function to read the processed value")
Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/r/20220108205319.2046348-2-liambeguin@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agocoresight: Fix TRCCONFIGR.QE sysfs interface
James Clark [Thu, 20 Jan 2022 11:30:47 +0000 (11:30 +0000)]
coresight: Fix TRCCONFIGR.QE sysfs interface

commit ea75a342aed5ed72c87f38fbe0df2f5df7eae374 upstream.

It's impossible to program a valid value for TRCCONFIGR.QE
when TRCIDR0.QSUPP==0b10. In that case the following is true:

  Q element support is implemented, and only supports Q elements without
  instruction counts. TRCCONFIGR.QE can only take the values 0b00 or 0b11.

Currently the low bit of QSUPP is checked to see if the low bit of QE can
be written to, but as you can see when QSUPP==0b10 the low bit is cleared
making it impossible to ever write the only valid value of 0b11 to QE.
0b10 would be written instead, which is a reserved QE value even for all
values of QSUPP.

The fix is to allow writing the low bit of QE for any non zero value of
QSUPP.

This change also ensures that the low bit is always set, even when the
user attempts to only set the high bit.

Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Fixes: d8c66962084f ("coresight-etm4x: Controls pertaining to the reset, mode, pe and events")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220120113047.2839622-2-james.clark@arm.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoUSB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c
Alan Stern [Thu, 17 Mar 2022 20:39:10 +0000 (16:39 -0400)]
USB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c

commit 1892bf90677abcad7f06e897e308f5c3e3618dd4 upstream.

The kernel test robot found a problem with the ene_ub6250 subdriver in
usb-storage: It uses structures containing bitfields to represent
hardware bits in its SD_STATUS, MS_STATUS, and SM_STATUS bytes.  This
is not safe; it presumes a particular bit ordering and it assumes the
compiler will not insert padding, neither of which is guaranteed.

This patch fixes the problem by changing the structures to simple u8
values, with the bitfields replaced by bitmask constants.

CC: <stable@vger.kernel.org>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/YjOcbuU106UpJ/V8@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agovirtio-blk: Use blk_validate_block_size() to validate block size
Xie Yongji [Tue, 26 Oct 2021 14:40:15 +0000 (22:40 +0800)]
virtio-blk: Use blk_validate_block_size() to validate block size

commit 57a13a5b8157d9a8606490aaa1b805bafe6c37e1 upstream.

The block layer can't support a block size larger than
page size yet. And a block size that's too small or
not a power of two won't work either. If a misconfigured
device presents an invalid block size in configuration space,
it will result in the kernel crash something like below:

[  506.154324] BUG: kernel NULL pointer dereference, address: 0000000000000008
[  506.160416] RIP: 0010:create_empty_buffers+0x24/0x100
[  506.174302] Call Trace:
[  506.174651]  create_page_buffers+0x4d/0x60
[  506.175207]  block_read_full_page+0x50/0x380
[  506.175798]  ? __mod_lruvec_page_state+0x60/0xa0
[  506.176412]  ? __add_to_page_cache_locked+0x1b2/0x390
[  506.177085]  ? blkdev_direct_IO+0x4a0/0x4a0
[  506.177644]  ? scan_shadow_nodes+0x30/0x30
[  506.178206]  ? lru_cache_add+0x42/0x60
[  506.178716]  do_read_cache_page+0x695/0x740
[  506.179278]  ? read_part_sector+0xe0/0xe0
[  506.179821]  read_part_sector+0x36/0xe0
[  506.180337]  adfspart_check_ICS+0x32/0x320
[  506.180890]  ? snprintf+0x45/0x70
[  506.181350]  ? read_part_sector+0xe0/0xe0
[  506.181906]  bdev_disk_changed+0x229/0x5c0
[  506.182483]  blkdev_get_whole+0x6d/0x90
[  506.183013]  blkdev_get_by_dev+0x122/0x2d0
[  506.183562]  device_add_disk+0x39e/0x3c0
[  506.184472]  virtblk_probe+0x3f8/0x79b [virtio_blk]
[  506.185461]  virtio_dev_probe+0x15e/0x1d0 [virtio]

So let's use a block layer helper to validate the block size.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Link: https://lore.kernel.org/r/20211026144015.188-5-xieyongji@bytedance.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoblock: Add a helper to validate the block size
Xie Yongji [Tue, 26 Oct 2021 14:40:12 +0000 (22:40 +0800)]
block: Add a helper to validate the block size

commit 570b1cac477643cbf01a45fa5d018430a1fddbce upstream.

There are some duplicated codes to validate the block
size in block drivers. This limitation actually comes
from block layer, so this patch tries to add a new block
layer helper for that.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Link: https://lore.kernel.org/r/20211026144015.188-2-xieyongji@bytedance.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agotpm: fix reference counting for struct tpm_chip
Lino Sanfilippo [Wed, 2 Mar 2022 09:43:53 +0000 (10:43 +0100)]
tpm: fix reference counting for struct tpm_chip

commit 7e0438f83dc769465ee663bb5dcf8cc154940712 upstream.

The following sequence of operations results in a refcount warning:

1. Open device /dev/tpmrm.
2. Remove module tpm_tis_spi.
3. Write a TPM command to the file descriptor opened at step 1.

------------[ cut here ]------------
WARNING: CPU: 3 PID: 1161 at lib/refcount.c:25 kobject_get+0xa0/0xa4
refcount_t: addition on 0; use-after-free.
Modules linked in: tpm_tis_spi tpm_tis_core tpm mdio_bcm_unimac brcmfmac
sha256_generic libsha256 sha256_arm hci_uart btbcm bluetooth cfg80211 vc4
brcmutil ecdh_generic ecc snd_soc_core crc32_arm_ce libaes
raspberrypi_hwmon ac97_bus snd_pcm_dmaengine bcm2711_thermal snd_pcm
snd_timer genet snd phy_generic soundcore [last unloaded: spi_bcm2835]
CPU: 3 PID: 1161 Comm: hold_open Not tainted 5.10.0ls-main-dirty #2
Hardware name: BCM2711
[<c0410c3c>] (unwind_backtrace) from [<c040b580>] (show_stack+0x10/0x14)
[<c040b580>] (show_stack) from [<c1092174>] (dump_stack+0xc4/0xd8)
[<c1092174>] (dump_stack) from [<c0445a30>] (__warn+0x104/0x108)
[<c0445a30>] (__warn) from [<c0445aa8>] (warn_slowpath_fmt+0x74/0xb8)
[<c0445aa8>] (warn_slowpath_fmt) from [<c08435d0>] (kobject_get+0xa0/0xa4)
[<c08435d0>] (kobject_get) from [<bf0a715c>] (tpm_try_get_ops+0x14/0x54 [tpm])
[<bf0a715c>] (tpm_try_get_ops [tpm]) from [<bf0a7d6c>] (tpm_common_write+0x38/0x60 [tpm])
[<bf0a7d6c>] (tpm_common_write [tpm]) from [<c05a7ac0>] (vfs_write+0xc4/0x3c0)
[<c05a7ac0>] (vfs_write) from [<c05a7ee4>] (ksys_write+0x58/0xcc)
[<c05a7ee4>] (ksys_write) from [<c04001a0>] (ret_fast_syscall+0x0/0x4c)
Exception stack(0xc226bfa8 to 0xc226bff0)
bfa0:                   00000000 000105b4 00000003 beafe664 00000014 00000000
bfc0: 00000000 000105b4 000103f8 00000004 00000000 00000000 b6f9c000 beafe684
bfe0: 0000006c beafe648 0001056c b6eb6944
---[ end trace d4b8409def9b8b1f ]---

The reason for this warning is the attempt to get the chip->dev reference
in tpm_common_write() although the reference counter is already zero.

Since commit 8979b02aaf1d ("tpm: Fix reference count to main device") the
extra reference used to prevent a premature zero counter is never taken,
because the required TPM_CHIP_FLAG_TPM2 flag is never set.

Fix this by moving the TPM 2 character device handling from
tpm_chip_alloc() to tpm_add_char_device() which is called at a later point
in time when the flag has been set in case of TPM2.

Commit fdc915f7f719 ("tpm: expose spaces via a device link /dev/tpmrm<n>")
already introduced function tpm_devs_release() to release the extra
reference but did not implement the required put on chip->devs that results
in the call of this function.

Fix this by putting chip->devs in tpm_chip_unregister().

Finally move the new implementation for the TPM 2 handling into a new
function to avoid multiple checks for the TPM_CHIP_FLAG_TPM2 flag in the
good case and error cases.

Cc: stable@vger.kernel.org
Fixes: fdc915f7f719 ("tpm: expose spaces via a device link /dev/tpmrm<n>")
Fixes: 8979b02aaf1d ("tpm: Fix reference count to main device")
Co-developed-by: Jason Gunthorpe <jgg@ziepe.ca>
Signed-off-by: Jason Gunthorpe <jgg@ziepe.ca>
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agofuse: fix pipe buffer lifetime for direct_io
Miklos Szeredi [Mon, 7 Mar 2022 15:30:44 +0000 (16:30 +0100)]
fuse: fix pipe buffer lifetime for direct_io

commit 0c4bcfdecb1ac0967619ee7ff44871d93c08c909 upstream.

In FOPEN_DIRECT_IO mode, fuse_file_write_iter() calls
fuse_direct_write_iter(), which normally calls fuse_direct_io(), which then
imports the write buffer with fuse_get_user_pages(), which uses
iov_iter_get_pages() to grab references to userspace pages instead of
actually copying memory.

On the filesystem device side, these pages can then either be read to
userspace (via fuse_dev_read()), or splice()d over into a pipe using
fuse_dev_splice_read() as pipe buffers with &nosteal_pipe_buf_ops.

This is wrong because after fuse_dev_do_read() unlocks the FUSE request,
the userspace filesystem can mark the request as completed, causing write()
to return. At that point, the userspace filesystem should no longer have
access to the pipe buffer.

Fix by copying pages coming from the user address space to new pipe
buffers.

Reported-by: Jann Horn <jannh@google.com>
Fixes: c3021629a0d8 ("fuse: support splice() reading from fuse device")
Cc: <stable@vger.kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Zach O'Keefe <zokeefe@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 years agoaf_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register
Haimin Zhang [Tue, 8 Mar 2022 03:20:28 +0000 (11:20 +0800)]
af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register

[ Upstream commit 9a564bccb78a76740ea9d75a259942df8143d02c ]

Add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register
to initialize the buffer of supp_skb to fix a kernel-info-leak issue.
1) Function pfkey_register calls compose_sadb_supported to request
a sk_buff. 2) compose_sadb_supported calls alloc_sbk to allocate
a sk_buff, but it doesn't zero it. 3) If auth_len is greater 0, then
compose_sadb_supported treats the memory as a struct sadb_supported and
begins to initialize. But it just initializes the field sadb_supported_len
and field sadb_supported_exttype without field sadb_supported_reserved.

Reported-by: TCS Robot <tcs_robot@tencent.com>
Signed-off-by: Haimin Zhang <tcs_kernel@tencent.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2 years agospi: Fix erroneous sgs value with min_t()
Biju Das [Wed, 16 Mar 2022 17:53:17 +0000 (17:53 +0000)]
spi: Fix erroneous sgs value with min_t()

[ Upstream commit ebc4cb43ea5ada3db46c80156fca58a54b9bbca8 ]

While computing sgs in spi_map_buf(), the data type
used in min_t() for max_seg_size is 'unsigned int' where
as that of ctlr->max_dma_len is 'size_t'.

min_t(unsigned int,x,y) gives wrong results if one of x/y is
'size_t'

Consider the below examples on a 64-bit machine (ie size_t is
64-bits, and unsigned int is 32-bit).
    case 1) min_t(unsigned int, 5, 0x100000001);
    case 2) min_t(size_t, 5, 0x100000001);

Case 1 returns '1', where as case 2 returns '5'. As you can see
the result from case 1 is wrong.

This patch fixes the above issue by using the data type of the
parameters that are used in min_t with maximum data length.

Fixes: commit 1a4e53d2fc4f68aa ("spi: Fix invalid sgs value")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220316175317.465-1-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>