GitHub/mt8127/android_kernel_alcatel_ttab.git
6 years agoMerge tag 'v3.10.76' into update
Stricted [Wed, 21 Mar 2018 21:42:30 +0000 (22:42 +0100)]
Merge tag 'v3.10.76' into update

This is the 3.10.76 stable release

6 years agoMerge tag 'v3.10.75' into update
Stricted [Wed, 21 Mar 2018 21:41:10 +0000 (22:41 +0100)]
Merge tag 'v3.10.75' into update

This is the 3.10.75 stable release

6 years agoMerge tag 'v3.10.74' into update
Stricted [Wed, 21 Mar 2018 21:41:07 +0000 (22:41 +0100)]
Merge tag 'v3.10.74' into update

This is the 3.10.74 stable release

6 years agoMerge tag 'v3.10.73' into update
Stricted [Wed, 21 Mar 2018 21:41:03 +0000 (22:41 +0100)]
Merge tag 'v3.10.73' into update

This is the 3.10.73 stable release

6 years agoMerge tag 'v3.10.72' into update
Stricted [Wed, 21 Mar 2018 21:40:54 +0000 (22:40 +0100)]
Merge tag 'v3.10.72' into update

This is the 3.10.72 stable release

6 years agoMerge tag 'v3.10.71' into update
Stricted [Wed, 21 Mar 2018 21:40:50 +0000 (22:40 +0100)]
Merge tag 'v3.10.71' into update

This is the 3.10.71 stable release

6 years agoMerge tag 'v3.10.70' into update
Stricted [Wed, 21 Mar 2018 21:40:47 +0000 (22:40 +0100)]
Merge tag 'v3.10.70' into update

This is the 3.10.70 stable release

6 years agoMerge tag 'v3.10.69' into update
Stricted [Wed, 21 Mar 2018 21:39:46 +0000 (22:39 +0100)]
Merge tag 'v3.10.69' into update

This is the 3.10.69 stable release

6 years agoMerge tag 'v3.10.68' into update
Stricted [Wed, 21 Mar 2018 21:38:24 +0000 (22:38 +0100)]
Merge tag 'v3.10.68' into update

This is the 3.10.68 stable release

6 years agoMerge tag 'v3.10.67' into update
Stricted [Wed, 21 Mar 2018 21:36:30 +0000 (22:36 +0100)]
Merge tag 'v3.10.67' into update

This is the 3.10.67 stable release

6 years agoMerge tag 'v3.10.66' into update
Stricted [Wed, 21 Mar 2018 21:36:27 +0000 (22:36 +0100)]
Merge tag 'v3.10.66' into update

This is the 3.10.66 stable release

6 years agoMerge tag 'v3.10.65' into update
Stricted [Wed, 21 Mar 2018 21:36:23 +0000 (22:36 +0100)]
Merge tag 'v3.10.65' into update

This is the 3.10.65 stable release

6 years agoMerge tag 'v3.10.64' into update
Stricted [Wed, 21 Mar 2018 21:33:51 +0000 (22:33 +0100)]
Merge tag 'v3.10.64' into update

This is the 3.10.64 stable release

6 years agoMerge tag 'v3.10.63' into update
Stricted [Wed, 21 Mar 2018 21:33:47 +0000 (22:33 +0100)]
Merge tag 'v3.10.63' into update

This is the 3.10.63 stable release

6 years agoMerge tag 'v3.10.62' into update
Stricted [Wed, 21 Mar 2018 21:31:45 +0000 (22:31 +0100)]
Merge tag 'v3.10.62' into update

This is the 3.10.62 stable release

6 years agoMerge tag 'v3.10.61' into update
Stricted [Wed, 21 Mar 2018 21:31:40 +0000 (22:31 +0100)]
Merge tag 'v3.10.61' into update

This is the 3.10.61 stable release

6 years agoMerge tag 'v3.10.60' into update
Stricted [Wed, 21 Mar 2018 21:31:34 +0000 (22:31 +0100)]
Merge tag 'v3.10.60' into update

This is the 3.10.60 stable release

6 years agoMerge tag 'v3.10.59' into update
Stricted [Wed, 21 Mar 2018 21:31:29 +0000 (22:31 +0100)]
Merge tag 'v3.10.59' into update

This is the 3.10.59 stable release

6 years agoMerge tag 'v3.10.58' into update
Stricted [Wed, 21 Mar 2018 21:31:25 +0000 (22:31 +0100)]
Merge tag 'v3.10.58' into update

This is the 3.10.58 stable release

6 years agoMerge tag 'v3.10.57' into update
Stricted [Wed, 21 Mar 2018 21:28:46 +0000 (22:28 +0100)]
Merge tag 'v3.10.57' into update

This is the 3.10.57 stable release

6 years agoMerge tag 'v3.10.56' into update
Stricted [Wed, 21 Mar 2018 21:22:19 +0000 (22:22 +0100)]
Merge tag 'v3.10.56' into update

This is the 3.10.56 stable release

6 years agoMerge tag 'v3.10.55' into update
Stricted [Wed, 21 Mar 2018 21:13:57 +0000 (22:13 +0100)]
Merge tag 'v3.10.55' into update

This is the 3.10.55 stable release

6 years agodisable some mediatekl custom warnings
Stricted [Wed, 21 Mar 2018 14:41:24 +0000 (15:41 +0100)]
disable some mediatekl custom warnings

6 years agoscripts: kconfig: fix jump initialization
Stricted [Fri, 16 Mar 2018 11:36:42 +0000 (12:36 +0100)]
scripts: kconfig: fix jump initialization

6 years agoscripts: sortextable: fix relocs_size initialization
Stricted [Fri, 16 Mar 2018 11:43:09 +0000 (12:43 +0100)]
scripts: sortextable: fix relocs_size initialization

6 years agocleanup Makefile
Stricted [Mon, 19 Mar 2018 16:45:11 +0000 (17:45 +0100)]
cleanup Makefile

6 years agoremove useless makefiles and build script
Stricted [Mon, 19 Mar 2018 16:33:56 +0000 (17:33 +0100)]
remove useless makefiles and build script

6 years agoAdd an option to multiplex AP and STA on wlan0
Diogo Ferreira [Fri, 15 Apr 2016 17:34:08 +0000 (18:34 +0100)]
Add an option to multiplex AP and STA on wlan0

This adds CONFIG_MTK_COMBO_AOSP_TETHERING_SUPPORT which, when enabled,
allows ap and wlan to co-exist in the same interface, as Android
expects.

Most of this functionality is also available (albeit not compilable broken)
under CFG_TC1_FEATURE but that has larger implications around the radio
and usb stack that we do not want to adopt.

Change-Id: Ib1d1be40566f1bb9ccc7be45b49ec8d1f3b3ba58
Ticket: PORRIDGE-30

6 years agoignore all warning
Stricted [Mon, 19 Mar 2018 13:51:56 +0000 (14:51 +0100)]
ignore all warning

i dont really want fix this mess that mediatek did here to get a clean build log
so lets disable the warning for now instead

6 years agoARM: add seccomp syscall
Kees Cook [Tue, 10 Jun 2014 22:40:23 +0000 (15:40 -0700)]
ARM: add seccomp syscall

Wires up the new seccomp syscall.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Change-Id: I31a2d38b892e2cd81bf3998a916c7bb539a37767

6 years agoreplace lcm_mdelay with mdelay
Stricted [Fri, 16 Mar 2018 11:30:43 +0000 (12:30 +0100)]
replace lcm_mdelay with mdelay

6 years agoimport PULS_20180308
Stricted [Tue, 13 Mar 2018 19:30:12 +0000 (20:30 +0100)]
import PULS_20180308

6 years agoimport PULS_20160108
Stricted [Tue, 13 Mar 2018 19:29:02 +0000 (20:29 +0100)]
import PULS_20160108

9 years agoLinux 3.10.76
Greg Kroah-Hartman [Wed, 29 Apr 2015 08:34:22 +0000 (10:34 +0200)]
Linux 3.10.76

9 years agodcache: Fix locking bugs in backported "deal with deadlock in d_walk()"
Ben Hutchings [Wed, 11 Feb 2015 03:16:35 +0000 (03:16 +0000)]
dcache: Fix locking bugs in backported "deal with deadlock in d_walk()"

commit 20defcec264ceab2630356fb9d397f3d237b5e6d upstream in 3.2-stable

Steven Rostedt reported:
> Porting -rt to the latest 3.2 stable tree I triggered this bug:
>
> =====================================
> [ BUG: bad unlock balance detected! ]
> -------------------------------------
> rm/1638 is trying to release lock (rcu_read_lock) at:
> [<c04fde6c>] rcu_read_unlock+0x0/0x23
> but there are no more locks to release!
>
> other info that might help us debug this:
> 2 locks held by rm/1638:
>  #0:  (&sb->s_type->i_mutex_key#9/1){+.+.+.}, at: [<c04f93eb>] do_rmdir+0x5f/0xd2
>  #1:  (&sb->s_type->i_mutex_key#9){+.+.+.}, at: [<c04f9329>] vfs_rmdir+0x49/0xac
>
> stack backtrace:
> Pid: 1638, comm: rm Not tainted 3.2.66-test-rt96+ #2
> Call Trace:
>  [<c083f390>] ? printk+0x1d/0x1f
>  [<c0463cdf>] print_unlock_inbalance_bug+0xc3/0xcd
>  [<c04653a8>] lock_release_non_nested+0x98/0x1ec
>  [<c046228d>] ? trace_hardirqs_off_caller+0x18/0x90
>  [<c0456f1c>] ? local_clock+0x2d/0x50
>  [<c04fde6c>] ? d_hash+0x2f/0x2f
>  [<c04fde6c>] ? d_hash+0x2f/0x2f
>  [<c046568e>] lock_release+0x192/0x1ad
>  [<c04fde83>] rcu_read_unlock+0x17/0x23
>  [<c04ff344>] shrink_dcache_parent+0x227/0x270
>  [<c04f9348>] vfs_rmdir+0x68/0xac
>  [<c04f9424>] do_rmdir+0x98/0xd2
>  [<c04f03ad>] ? fput+0x1a3/0x1ab
>  [<c084dd42>] ? sysenter_exit+0xf/0x1a
>  [<c0465b58>] ? trace_hardirqs_on_caller+0x118/0x149
>  [<c04fa3e0>] sys_unlinkat+0x2b/0x35
>  [<c084dd13>] sysenter_do_call+0x12/0x12
>
>
>
>
> There's a path to calling rcu_read_unlock() without calling
> rcu_read_lock() in have_submounts().
>
>  goto positive;
>
> positive:
>  if (!locked && read_seqretry(&rename_lock, seq))
>  goto rename_retry;
>
> rename_retry:
>  rcu_read_unlock();
>
> in the above path, rcu_read_lock() is never done before calling
> rcu_read_unlock();

I reviewed locking contexts in all three functions that I changed when
backporting "deal with deadlock in d_walk()".  It's actually worse
than this:

- We don't hold this_parent->d_lock at the 'positive' label in
  have_submounts(), but it is unlocked after 'rename_retry'.
- There is an rcu_read_unlock() after the 'out' label in
  select_parent(), but it's not held at the 'goto out'.

Fix all three lock imbalances.

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoarc: mm: Fix build failure
Guenter Roeck [Fri, 30 Jan 2015 03:15:33 +0000 (19:15 -0800)]
arc: mm: Fix build failure

commit e262eb9381ad51b5de7a9e762ee773bbd25ce650 upstream.

Fix misspelled define.

Fixes: 33692f27597f ("vm: add VM_FAULT_SIGSEGV handling support")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agosb_edac: avoid INTERNAL ERROR message in EDAC with unspecified channel
Seth Jennings [Fri, 5 Sep 2014 19:28:47 +0000 (14:28 -0500)]
sb_edac: avoid INTERNAL ERROR message in EDAC with unspecified channel

commit 351fc4a99d49fde63fe5ab7412beb35c40d27269 upstream.

Intel IA32 SDM Table 15-14 defines channel 0xf as 'not specified', but
EDAC doesn't know about this and returns and INTERNAL ERROR when the
channel is greater than NUM_CHANNELS:

kernel: [ 1538.886456] CPU 0: Machine Check Exception: 0 Bank 1: 940000000000009f
kernel: [ 1538.886669] TSC 2bc68b22e7e812 ADDR 46dae7000 MISC 0 PROCESSOR 0:306e4 TIME 1390414572 SOCKET 0 APIC 0
kernel: [ 1538.971948] EDAC MC1: INTERNAL ERROR: channel value is out of range (15 >= 4)
kernel: [ 1538.972203] EDAC MC1: 0 CE memory read error on unknown memory (slot:0 page:0x46dae7 offset:0x0 grain:0 syndrome:0x0 -  area:DRAM err_code:0000:009f socket:1 channel_mask:1 rank:0)

This commit changes sb_edac to forward a channel of -1 to EDAC if the
channel is not specified.  edac_mc_handle_error() sets the channel to -1
internally after the error message anyway, so this commit should have no
effect other than avoiding the INTERNAL ERROR message when the channel
is not specified.

Signed-off-by: Seth Jennings <sjenning@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Vinson Lee <vlee@twopensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agox86: mm: move mmap_sem unlock from mm_fault_error() to caller
Linus Torvalds [Mon, 15 Dec 2014 22:46:06 +0000 (14:46 -0800)]
x86: mm: move mmap_sem unlock from mm_fault_error() to caller

commit 7fb08eca45270d0ae86e1ad9d39c40b7a55d0190 upstream.

This replaces four copies in various stages of mm_fault_error() handling
with just a single one.  It will also allow for more natural placement
of the unlocking after some further cleanup.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agovm: make stack guard page errors return VM_FAULT_SIGSEGV rather than SIGBUS
Linus Torvalds [Thu, 29 Jan 2015 19:15:17 +0000 (11:15 -0800)]
vm: make stack guard page errors return VM_FAULT_SIGSEGV rather than SIGBUS

commit 9c145c56d0c8a0b62e48c8d71e055ad0fb2012ba upstream.

The stack guard page error case has long incorrectly caused a SIGBUS
rather than a SIGSEGV, but nobody actually noticed until commit
fee7e49d4514 ("mm: propagate error from stack expansion even for guard
page") because that error case was never actually triggered in any
normal situations.

Now that we actually report the error, people noticed the wrong signal
that resulted.  So far, only the test suite of libsigsegv seems to have
actually cared, but there are real applications that use libsigsegv, so
let's not wait for any of those to break.

Reported-and-tested-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # "s390 still compiles and boots"
Cc: linux-arch@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agovm: add VM_FAULT_SIGSEGV handling support
Linus Torvalds [Thu, 29 Jan 2015 18:51:32 +0000 (10:51 -0800)]
vm: add VM_FAULT_SIGSEGV handling support

commit 33692f27597fcab536d7cbbcc8f52905133e4aa7 upstream.

The core VM already knows about VM_FAULT_SIGBUS, but cannot return a
"you should SIGSEGV" error, because the SIGSEGV case was generally
handled by the caller - usually the architecture fault handler.

That results in lots of duplication - all the architecture fault
handlers end up doing very similar "look up vma, check permissions, do
retries etc" - but it generally works.  However, there are cases where
the VM actually wants to SIGSEGV, and applications _expect_ SIGSEGV.

In particular, when accessing the stack guard page, libsigsegv expects a
SIGSEGV.  And it usually got one, because the stack growth is handled by
that duplicated architecture fault handler.

However, when the generic VM layer started propagating the error return
from the stack expansion in commit fee7e49d4514 ("mm: propagate error
from stack expansion even for guard page"), that now exposed the
existing VM_FAULT_SIGBUS result to user space.  And user space really
expected SIGSEGV, not SIGBUS.

To fix that case, we need to add a VM_FAULT_SIGSEGV, and teach all those
duplicate architecture fault handlers about it.  They all already have
the code to handle SIGSEGV, so it's about just tying that new return
value to the existing code, but it's all a bit annoying.

This is the mindless minimal patch to do this.  A more extensive patch
would be to try to gather up the mostly shared fault handling logic into
one generic helper routine, and long-term we really should do that
cleanup.

Just from this patch, you can generally see that most architectures just
copied (directly or indirectly) the old x86 way of doing things, but in
the meantime that original x86 model has been improved to hold the VM
semaphore for shorter times etc and to handle VM_FAULT_RETRY and other
"newer" things, so it would be a good idea to bring all those
improvements to the generic case and teach other architectures about
them too.

Reported-and-tested-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Jan Engelhardt <jengelh@inai.de>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> # "s390 still compiles and boots"
Cc: linux-arch@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[shengyong: Backport to 3.10
 - adjust context
 - ignore modification for arch nios2, because 3.10 does not support it
 - ignore modification for driver lustre, because 3.10 does not support it
 - ignore VM_FAULT_FALLBACK in VM_FAULT_ERROR, becase 3.10 does not support
   this flag
 - add SIGSEGV handling to powerpc/cell spu_fault.c, because 3.10 does not
   separate it to copro_fault.c
 - add SIGSEGV handling in mm/memory.c, because 3.10 does not separate it
   to gup.c
]
Signed-off-by: Sheng Yong <shengyong1@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agodeal with deadlock in d_walk()
Al Viro [Sun, 26 Oct 2014 23:31:10 +0000 (19:31 -0400)]
deal with deadlock in d_walk()

commit ca5358ef75fc69fee5322a38a340f5739d997c10 upstream.

... by not hitting rename_retry for reasons other than rename having
happened.  In other words, do _not_ restart when finding that
between unlocking the child and locking the parent the former got
into __dentry_kill().  Skip the killed siblings instead...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ben Hutchings <ben@decadent.org.uk>
[hujianyang: Backported to 3.10 refer to the work of Ben Hutchings in 3.2:
 - As we only have try_to_ascend() and not d_walk(), apply this
   change to all callers of try_to_ascend()
 - Adjust context to make __dentry_kill() apply to d_kill()]
Signed-off-by: hujianyang <hujianyang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agomove d_rcu from overlapping d_child to overlapping d_alias
Al Viro [Sun, 26 Oct 2014 23:19:16 +0000 (19:19 -0400)]
move d_rcu from overlapping d_child to overlapping d_alias

commit 946e51f2bf37f1656916eb75bd0742ba33983c28 upstream.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Ben Hutchings <ben@decadent.org.uk>
[hujianyang: Backported to 3.10 refer to the work of Ben Hutchings in 3.2:
 - Apply name changes in all the different places we use d_alias and d_child
 - Move the WARN_ON() in __d_free() to d_free() as we don't have dentry_free()]
Signed-off-by: hujianyang <hujianyang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agokconfig: Fix warning "‘jump’ may be used uninitialized"
Peter Kümmel [Tue, 4 Nov 2014 11:01:59 +0000 (12:01 +0100)]
kconfig: Fix warning "‘jump’ may be used uninitialized"

commit 2d560306096739e2251329ab5c16059311a151b0 upstream.

Warning:
In file included from scripts/kconfig/zconf.tab.c:2537:0:
scripts/kconfig/menu.c: In function ‘get_symbol_str’:
scripts/kconfig/menu.c:590:18: warning: ‘jump’ may be used uninitialized in this function [-Wmaybe-uninitialized]
     jump->offset = strlen(r->s);

Simplifies the test logic because (head && local) means (jump != 0)
and makes GCC happy when checking if the jump pointer was initialized.

Signed-off-by: Peter Kümmel <syntheticpp@gmx.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>
[ dileks: v2: Backported to fit v3.10 ]
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoKVM: x86: SYSENTER emulation is broken
Nadav Amit [Thu, 1 Jan 2015 21:11:11 +0000 (23:11 +0200)]
KVM: x86: SYSENTER emulation is broken

commit f3747379accba8e95d70cec0eae0582c8c182050 upstream.

SYSENTER emulation is broken in several ways:
1. It misses the case of 16-bit code segments completely (CVE-2015-0239).
2. MSR_IA32_SYSENTER_CS is checked in 64-bit mode incorrectly (bits 0 and 1 can
   still be set without causing #GP).
3. MSR_IA32_SYSENTER_EIP and MSR_IA32_SYSENTER_ESP are not masked in
   legacy-mode.
4. There is some unneeded code.

Fix it.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[zhangzhiqiang: backport to 3.10:
 - adjust context
 - in 3.10 context "ctxt->eflags &= ~(EFLG_VM | EFLG_IF | EFLG_RF)" is replaced by
   "ctxt->eflags &= ~(EFLG_VM | EFLG_IF)" in upstream, which was changed by another commit.
 - After the above adjustments, becomes same to the original patch:
       https://github.com/torvalds/linux/commit/f3747379accba8e95d70cec0eae0582c8c182050
]
Signed-off-by: Zhiqiang Zhang <zhangzhiqiang.zhang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agonetfilter: conntrack: disable generic tracking for known protocols
Florian Westphal [Fri, 26 Sep 2014 09:35:42 +0000 (11:35 +0200)]
netfilter: conntrack: disable generic tracking for known protocols

commit db29a9508a9246e77087c5531e45b2c88ec6988b upstream.

Given following iptables ruleset:

-P FORWARD DROP
-A FORWARD -m sctp --dport 9 -j ACCEPT
-A FORWARD -p tcp --dport 80 -j ACCEPT
-A FORWARD -p tcp -m conntrack -m state ESTABLISHED,RELATED -j ACCEPT

One would assume that this allows SCTP on port 9 and TCP on port 80.
Unfortunately, if the SCTP conntrack module is not loaded, this allows
*all* SCTP communication, to pass though, i.e. -p sctp -j ACCEPT,
which we think is a security issue.

This is because on the first SCTP packet on port 9, we create a dummy
"generic l4" conntrack entry without any port information (since
conntrack doesn't know how to extract this information).

All subsequent packets that are unknown will then be in established
state since they will fallback to proto_generic and will match the
'generic' entry.

Our originally proposed version [1] completely disabled generic protocol
tracking, but Jozsef suggests to not track protocols for which a more
suitable helper is available, hence we now mitigate the issue for in
tree known ct protocol helpers only, so that at least NAT and direction
information will still be preserved for others.

 [1] http://www.spinics.net/lists/netfilter-devel/msg33430.html

Joint work with Daniel Borkmann.

Fixes CVE-2014-8160.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Zhiqiang Zhang <zhangzhiqiang.zhang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoBluetooth: Ignore isochronous endpoints for Intel USB bootloader
Marcel Holtmann [Sun, 6 Jul 2014 12:53:55 +0000 (14:53 +0200)]
Bluetooth: Ignore isochronous endpoints for Intel USB bootloader

commit d92f2df0565ea04101d6ac04bdc10feeb1d93c94 upstream.

The isochronous endpoints are not valid when the Intel Bluetooth
controller boots up in bootloader mode. So just mark these endpoints
as broken and then they will not be configured.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoBluetooth: Add support for Intel bootloader devices
Marcel Holtmann [Sun, 6 Jul 2014 11:29:58 +0000 (13:29 +0200)]
Bluetooth: Add support for Intel bootloader devices

commit 40df783d1ef1989ac454e3dfcda017270b8950e6 upstream.

Intel Bluetooth devices that boot up in bootloader mode can not
be used as generic HCI devices, but their HCI transport is still
valuable and so bring that up as raw-only devices.

T:  Bus=02 Lev=02 Prnt=03 Port=00 Cnt=01 Dev#= 14 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=ff(vend.) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=8087 ProdID=0a5a Rev= 0.00
S:  Manufacturer=Intel(R) Corporation
S:  Product=Intel(R) Wilkins Peak 2x2
S:  SerialNumber=001122334455 WP_A0
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=81(I) Atr=03(Int.) MxPS=  64 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
[bwh: Backported to 3.14: adjust context]
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoBluetooth: btusb: Add IMC Networks (Broadcom based)
Jurgen Kramer [Sat, 15 Feb 2014 11:01:09 +0000 (12:01 +0100)]
Bluetooth: btusb: Add IMC Networks (Broadcom based)

commit 9113bfd82dc8ece9cbb898df8794f58a78a36e97 upstream.

Add support for IMC Networks (Broadcom based) to btusb driver.

Below the output of /sys/kernel/debug/usb/devices for this device:

T:  Bus=01 Lev=02 Prnt=02 Port=04 Cnt=01 Dev#=  3 Spd=12   MxCh= 0
D:  Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=13d3 ProdID=3404 Rev= 1.12
S:  Manufacturer=Broadcom Corp
S:  Product=BCM20702A0
S:  SerialNumber=240A649F8246
C:* #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=  0mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=84(I) Atr=02(Bulk) MxPS=  32 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS=  32 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=01 Driver=(none)

Signed-off-by: Jurgen Kramer <gtmkramer@xs4all.nl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoBluetooth: Add firmware update for Atheros 0cf3:311f
Oliver Neukum [Thu, 16 Jan 2014 15:02:58 +0000 (16:02 +0100)]
Bluetooth: Add firmware update for Atheros 0cf3:311f

commit 1e56f1eb2bbeab0ddc3a1e536d2a0065cfe4c131 upstream.

The device is not functional without firmware.

The device without firmware:
T:  Bus=02 Lev=02 Prnt=02 Port=05 Cnt=01 Dev#=  3 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0cf3 ProdID=311f Rev=00.01
C:  #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb

The device with firmware:
T:  Bus=02 Lev=02 Prnt=02 Port=05 Cnt=01 Dev#=  4 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0cf3 ProdID=3007 Rev=00.01
C:  #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoBluetooth: Enable Atheros 0cf3:311e for firmware upload
Oliver Neukum [Thu, 16 Jan 2014 14:37:11 +0000 (15:37 +0100)]
Bluetooth: Enable Atheros 0cf3:311e for firmware upload

commit b131237ca3995edad9efc162d0bc959c3b1dddc2 upstream.

The device will bind to btusb without firmware, but with the original
buggy firmware device discovery does not work. No devices are detected.

Device descriptor without firmware:
T:  Bus=03 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#=  2 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0cf3 ProdID=311e Rev= 0.01
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms

with firmware:
T:  Bus=03 Lev=01 Prnt=01 Port=02 Cnt=01 Dev#=  3 Spd=12   MxCh= 0
D:  Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0cf3 ProdID=311e Rev= 0.02
C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agomm: Fix NULL pointer dereference in madvise(MADV_WILLNEED) support
Kirill A. Shutemov [Fri, 20 Dec 2013 13:10:03 +0000 (15:10 +0200)]
mm: Fix NULL pointer dereference in madvise(MADV_WILLNEED) support

commit ee53664bda169f519ce3c6a22d378f0b946c8178 upstream.

Sasha Levin found a NULL pointer dereference that is due to a missing
page table lock, which in turn is due to the pmd entry in question being
a transparent huge-table entry.

The code - introduced in commit 1998cc048901 ("mm: make
madvise(MADV_WILLNEED) support swap file prefetch") - correctly checks
for this situation using pmd_none_or_trans_huge_or_clear_bad(), but it
turns out that that function doesn't work correctly.

pmd_none_or_trans_huge_or_clear_bad() expected that pmd_bad() would
trigger if the transparent hugepage bit was set, but it doesn't do that
if pmd_numa() is also set. Note that the NUMA bit only gets set on real
NUMA machines, so people trying to reproduce this on most normal
development systems would never actually trigger this.

Fix it by removing the very subtle (and subtly incorrect) expectation,
and instead just checking pmd_trans_huge() explicitly.

Reported-by: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Andrea Arcangeli <aarcange@redhat.com>
[ Additionally remove the now stale test for pmd_trans_huge() inside the
  pmd_bad() case - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Wang Long <long.wanglong@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agosplice: Apply generic position and size checks to each write
Ben Hutchings [Thu, 29 Jan 2015 02:50:33 +0000 (02:50 +0000)]
splice: Apply generic position and size checks to each write

commit 894c6350eaad7e613ae267504014a456e00a3e2a from the 3.2-stable branch.

We need to check the position and size of file writes against various
limits, using generic_write_check().  This was not being done for
the splice write path.  It was fixed upstream by commit 8d0207652cbe
("->splice_write() via ->write_iter()") but we can't apply that.

CVE-2014-7822

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
[Ben fixed it in 3.2 stable, i ported it to 3.10 stable]
Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agojfs: fix readdir regression
Dave Kleikamp [Mon, 23 Mar 2015 21:06:26 +0000 (16:06 -0500)]
jfs: fix readdir regression

Upstream commit 44512449, "jfs: fix readdir cookie incompatibility
with NFSv4", was backported incorrectly into the stable trees which
used the filldir callback (rather than dir_emit). The position is
being incorrectly passed to filldir for the . and .. entries.

The still-maintained stable trees that need to be fixed are 3.2.y,
3.4.y and 3.10.y.

https://bugzilla.kernel.org/show_bug.cgi?id=94741

Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Cc: jfs-discussion@lists.sourceforge.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoserial: 8250_dw: Fix deadlock in LCR workaround
Peter Hurley [Wed, 11 Mar 2015 13:19:16 +0000 (09:19 -0400)]
serial: 8250_dw: Fix deadlock in LCR workaround

commit 7fd6f640f2dd17dac6ddd6702c378cb0bb9cfa11 upstream.

Trying to write console output from within the serial console driver
while the port->lock is held causes recursive deadlock:

  CPU 0
spin_lock_irqsave(&port->lock)
printk()
  console_unlock()
    call_console_drivers()
      serial8250_console_write()
        spin_lock_irqsave(&port->lock)
** DEADLOCK **

The 8250_dw i/o accessors try to write a console error message if the
LCR workaround was unsuccessful. When the port->lock is already held
(eg., when called from serial8250_set_termios()), this deadlocks.

Make the error message a FIXME until a general solution is devised.

Cc: Tim Kryger <tim.kryger@gmail.com>
Reported-by: Zhang Zhen <zhenzhang.zhang@huawei.com>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agobenet: Call dev_kfree_skby_any instead of kfree_skb.
Eric W. Biederman [Tue, 11 Mar 2014 21:19:50 +0000 (14:19 -0700)]
benet: Call dev_kfree_skby_any instead of kfree_skb.

Replace free_skb with dev_kfree_skb_any in be_tx_compl_process as
which can be called in hard irq by netpoll, softirq context
by normal napi polling, and in normal sleepable context
by the network device close method.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoixgb: Call dev_kfree_skby_any instead of dev_kfree_skb.
Eric W. Biederman [Tue, 11 Mar 2014 21:18:42 +0000 (14:18 -0700)]
ixgb: Call dev_kfree_skby_any instead of dev_kfree_skb.

Replace dev_kfree_skb with dev_kfree_skb_any in functions that can
be called in hard irq and other contexts.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agotg3: Call dev_kfree_skby_any instead of dev_kfree_skb.
Eric W. Biederman [Tue, 11 Mar 2014 21:18:14 +0000 (14:18 -0700)]
tg3: Call dev_kfree_skby_any instead of dev_kfree_skb.

Replace dev_kfree_skb with dev_kfree_skb_any in functions that can
be called in hard irq and other contexts.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agobnx2: Call dev_kfree_skby_any instead of dev_kfree_skb.
Eric W. Biederman [Tue, 11 Mar 2014 21:17:41 +0000 (14:17 -0700)]
bnx2: Call dev_kfree_skby_any instead of dev_kfree_skb.

Replace dev_kfree_skb with dev_kfree_skb_any in functions that can
be called in hard irq and other contexts.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agor8169: Call dev_kfree_skby_any instead of dev_kfree_skb.
Eric W. Biederman [Tue, 11 Mar 2014 21:16:14 +0000 (14:16 -0700)]
r8169: Call dev_kfree_skby_any instead of dev_kfree_skb.

Replace dev_kfree_skb with dev_kfree_skb_any in functions that can
be called in hard irq and other contexts.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years ago8139too: Call dev_kfree_skby_any instead of dev_kfree_skb.
Eric W. Biederman [Tue, 11 Mar 2014 21:15:36 +0000 (14:15 -0700)]
8139too: Call dev_kfree_skby_any instead of dev_kfree_skb.

Replace dev_kfree_skb with dev_kfree_skb_any in functions that can
be called in hard irq and other contexts.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years ago8139cp: Call dev_kfree_skby_any instead of kfree_skb.
Eric W. Biederman [Tue, 11 Mar 2014 21:14:58 +0000 (14:14 -0700)]
8139cp: Call dev_kfree_skby_any instead of kfree_skb.

Replace kfree_skb with dev_kfree_skb_any in cp_start_xmit
as it can be called in both hard irq and other contexts.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agotcp: tcp_make_synack() should clear skb->tstamp
Eric Dumazet [Thu, 9 Apr 2015 20:31:56 +0000 (13:31 -0700)]
tcp: tcp_make_synack() should clear skb->tstamp

[ Upstream commit b50edd7812852d989f2ef09dcfc729690f54a42d ]

I noticed tcpdump was giving funky timestamps for locally
generated SYNACK messages on loopback interface.

11:42:46.938990 IP 127.0.0.1.48245 > 127.0.0.2.23850: S
945476042:945476042(0) win 43690 <mss 65495,nop,nop,sackOK,nop,wscale 7>

20:28:58.502209 IP 127.0.0.2.23850 > 127.0.0.1.48245: S
3160535375:3160535375(0) ack 945476043 win 43690 <mss
65495,nop,nop,sackOK,nop,wscale 7>

This is because we need to clear skb->tstamp before
entering lower stack, otherwise net_timestamp_check()
does not set skb->tstamp.

Fixes: 7faee5c0d514 ("tcp: remove TCP_SKB_CB(skb)->when")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agotcp: fix FRTO undo on cumulative ACK of SACKed range
Neal Cardwell [Thu, 2 Apr 2015 00:26:46 +0000 (20:26 -0400)]
tcp: fix FRTO undo on cumulative ACK of SACKed range

[ Upstream commit 666b805150efd62f05810ff0db08f44a2370c937 ]

On processing cumulative ACKs, the FRTO code was not checking the
SACKed bit, meaning that there could be a spurious FRTO undo on a
cumulative ACK of a previously SACKed skb.

The FRTO code should only consider a cumulative ACK to indicate that
an original/unretransmitted skb is newly ACKed if the skb was not yet
SACKed.

The effect of the spurious FRTO undo would typically be to make the
connection think that all previously-sent packets were in flight when
they really weren't, leading to a stall and an RTO.

Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Fixes: e33099f96d99c ("tcp: implement RFC5682 F-RTO")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoipv6: Don't reduce hop limit for an interface
D.S. Ljungmark [Wed, 25 Mar 2015 08:28:15 +0000 (09:28 +0100)]
ipv6: Don't reduce hop limit for an interface

[ Upstream commit 6fd99094de2b83d1d4c8457f2c83483b2828e75a ]

A local route may have a lower hop_limit set than global routes do.

RFC 3756, Section 4.2.7, "Parameter Spoofing"

>   1.  The attacker includes a Current Hop Limit of one or another small
>       number which the attacker knows will cause legitimate packets to
>       be dropped before they reach their destination.

>   As an example, one possible approach to mitigate this threat is to
>   ignore very small hop limits.  The nodes could implement a
>   configurable minimum hop limit, and ignore attempts to set it below
>   said limit.

Signed-off-by: D.S. Ljungmark <ljungmark@modio.se>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agotcp: prevent fetching dst twice in early demux code
Michal Kubeček [Mon, 23 Mar 2015 14:14:00 +0000 (15:14 +0100)]
tcp: prevent fetching dst twice in early demux code

[ Upstream commit d0c294c53a771ae7e84506dfbd8c18c30f078735 ]

On s390x, gcc 4.8 compiles this part of tcp_v6_early_demux()

        struct dst_entry *dst = sk->sk_rx_dst;

        if (dst)
                dst = dst_check(dst, inet6_sk(sk)->rx_dst_cookie);

to code reading sk->sk_rx_dst twice, once for the test and once for
the argument of ip6_dst_check() (dst_check() is inline). This allows
ip6_dst_check() to be called with null first argument, causing a crash.

Protect sk->sk_rx_dst access by ACCESS_ONCE() both in IPv4 and IPv6
TCP early demux code.

Fixes: 41063e9dd119 ("ipv4: Early TCP socket demux.")
Fixes: c7109986db3c ("ipv6: Early TCP socket demux")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoremove extra definitions of U32_MAX
Alex Elder [Thu, 23 Jan 2014 23:54:01 +0000 (15:54 -0800)]
remove extra definitions of U32_MAX

commit 04f9b74e4d96d349de12fdd4e6626af4a9f75e09 upstream.

Now that the definition is centralized in <linux/kernel.h>, the
definitions of U32_MAX (and related) elsewhere in the kernel can be
removed.

Signed-off-by: Alex Elder <elder@linaro.org>
Acked-by: Sage Weil <sage@inktank.com>
Acked-by: David S. Miller <davem@davemloft.net>
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>
9 years agoconditionally define U32_MAX
Alex Elder [Thu, 23 Jan 2014 23:53:59 +0000 (15:53 -0800)]
conditionally define U32_MAX

commit 77719536dc00f8fd8f5abe6dadbde5331c37f996 upstream.

The symbol U32_MAX is defined in several spots.  Change these
definitions to be conditional.  This is in preparation for the next
patch, which centralizes the definition in <linux/kernel.h>.

Signed-off-by: Alex Elder <elder@linaro.org>
Cc: Sage Weil <sage@inktank.com>
Cc: David Miller <davem@davemloft.net>
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>
9 years agoLinux 3.10.75
Greg Kroah-Hartman [Sun, 19 Apr 2015 08:12:19 +0000 (10:12 +0200)]
Linux 3.10.75

9 years agopagemap: do not leak physical addresses to non-privileged userspace
Kirill A. Shutemov [Mon, 9 Mar 2015 21:11:12 +0000 (23:11 +0200)]
pagemap: do not leak physical addresses to non-privileged userspace

commit ab676b7d6fbf4b294bf198fb27ade5b0e865c7ce upstream.

As pointed by recent post[1] on exploiting DRAM physical imperfection,
/proc/PID/pagemap exposes sensitive information which can be used to do
attacks.

This disallows anybody without CAP_SYS_ADMIN to read the pagemap.

[1] http://googleprojectzero.blogspot.com/2015/03/exploiting-dram-rowhammer-bug-to-gain.html

[ Eventually we might want to do anything more finegrained, but for now
  this is the simple model.   - Linus ]

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Acked-by: Andy Lutomirski <luto@amacapital.net>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Mark Seaborn <mseaborn@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: mancha security <mancha1@zoho.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoconsole: Fix console name size mismatch
Peter Hurley [Sun, 1 Mar 2015 15:11:05 +0000 (10:11 -0500)]
console: Fix console name size mismatch

commit 30a22c215a0007603ffc08021f2e8b64018517dd upstream.

commit 6ae9200f2cab7 ("enlarge console.name") increased the storage
for the console name to 16 bytes, but not the corresponding
struct console_cmdline::name storage. Console names longer than
8 bytes cause read beyond end-of-string and failure to match
console; I'm not sure if there are other unexpected consequences.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoIB/mlx4: Saturate RoCE port PMA counters in case of overflow
Majd Dibbiny [Wed, 18 Mar 2015 14:51:37 +0000 (16:51 +0200)]
IB/mlx4: Saturate RoCE port PMA counters in case of overflow

commit 61a3855bb726cbb062ef02a31a832dea455456e0 upstream.

For RoCE ports, we set the u32 PMA values based on u64 HCA counters. In case of
overflow, according to the IB spec, we have to saturate a counter to its
max value, do that.

Fixes: c37791349cc7 ('IB/mlx4: Support PMA counters for IBoE')
Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agokernel.h: define u8, s8, u32, etc. limits
Alex Elder [Thu, 23 Jan 2014 23:54:00 +0000 (15:54 -0800)]
kernel.h: define u8, s8, u32, etc. limits

commit 89a0714106aac7309c7dfa0f004b39e1e89d2942 upstream.

Create constants that define the maximum and minimum values
representable by the kernel types u8, s8, u16, s16, and so on.

Signed-off-by: Alex Elder <elder@linaro.org>
Cc: Sage Weil <sage@inktank.com>
Cc: David Miller <davem@davemloft.net>
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>
9 years agonet: llc: use correct size for sysctl timeout entries
Sasha Levin [Sat, 24 Jan 2015 01:47:00 +0000 (20:47 -0500)]
net: llc: use correct size for sysctl timeout entries

commit 6b8d9117ccb4f81b1244aafa7bc70ef8fa45fc49 upstream.

The timeout entries are sizeof(int) rather than sizeof(long), which
means that when they were getting read we'd also leak kernel memory
to userspace along with the timeout values.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agonet: rds: use correct size for max unacked packets and bytes
Sasha Levin [Tue, 3 Feb 2015 13:55:58 +0000 (08:55 -0500)]
net: rds: use correct size for max unacked packets and bytes

commit db27ebb111e9f69efece08e4cb6a34ff980f8896 upstream.

Max unacked packets/bytes is an int while sizeof(long) was used in the
sysctl table.

This means that when they were getting read we'd also leak kernel memory
to userspace along with the timeout values.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoipc: fix compat msgrcv with negative msgtyp
Mateusz Guzik [Tue, 28 Jan 2014 01:07:11 +0000 (17:07 -0800)]
ipc: fix compat msgrcv with negative msgtyp

commit e7ca2552369c1dfe0216c626baf82c3d83ec36bb upstream.

Compat function takes msgtyp argument as u32 and passes it down to
do_msgrcv which results in casting to long, thus the sign is lost and we
get a big positive number instead.

Cast the argument to signed type before passing it down.

Signed-off-by: Mateusz Guzik <mguzik@redhat.com>
Reported-by: Gabriellla Schmidt <gsc@bruker.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agocore, nfqueue, openvswitch: fix compilation warning
Jiri Slaby [Mon, 13 Apr 2015 14:41:28 +0000 (16:41 +0200)]
core, nfqueue, openvswitch: fix compilation warning

Stable commit "core, nfqueue, openvswitch: Orphan frags in
skb_zerocopy and handle errors", upstream commit
36d5fe6a000790f56039afe26834265db0a3ad4c, was not correctly backported
and missed to change a const 'from' parameter to non-const.  This
results in a new batch of warnings:

net/netfilter/nfnetlink_queue_core.c: In function ‘nfqnl_zcopy’:
net/netfilter/nfnetlink_queue_core.c:272:2: warning: passing argument 1 of ‘skb_orphan_frags’ discards ‘const’ qualifier from pointer target type [enabled by default]
  if (unlikely(skb_orphan_frags(from, GFP_ATOMIC))) {
  ^
In file included from net/netfilter/nfnetlink_queue_core.c:18:0:
include/linux/skbuff.h:1822:19: note: expected ‘struct sk_buff *’ but argument is of type ‘const struct sk_buff *’
 static inline int skb_orphan_frags(struct sk_buff *skb, gfp_t gfp_mask)
                   ^
net/netfilter/nfnetlink_queue_core.c:273:3: warning: passing argument 1 of ‘skb_tx_error’ discards ‘const’ qualifier from pointer target type [enabled by default]
   skb_tx_error(from);
   ^
In file included from net/netfilter/nfnetlink_queue_core.c:18:0:
include/linux/skbuff.h:630:13: note: expected ‘struct sk_buff *’ but argument is of type ‘const struct sk_buff *’
 extern void skb_tx_error(struct sk_buff *skb);

Remove const from the 'from' parameter, the same as in the upstream
commit.

As far as I can see, this leaked into 3.10, 3.12, and 3.13 already.

Cc: Zoltan Kiss <zoltan.kiss@citrix.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Ben Hutchings <ben@decadent.org.uk>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kamal Mostafa <kamal.mostafa@canonical.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agomedia: s5p-mfc: fix mmap support for 64bit arch
Marek Szyprowski [Wed, 4 Mar 2015 13:55:21 +0000 (05:55 -0800)]
media: s5p-mfc: fix mmap support for 64bit arch

commit 05b676ab42f624425d5f6519276e506b812fa058 upstream.

TASK_SIZE is depends on the systems architecture (32 or 64 bits) and it
should not be used for defining offset boundary for mmaping buffers for
CAPTURE and OUTPUT queues. This patch fixes support for MMAP calls on
the CAPTURE queue on 64bit architectures (like ARM64).

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoiscsi target: fix oops when adding reject pdu
Mike Christie [Fri, 10 Apr 2015 07:47:27 +0000 (02:47 -0500)]
iscsi target: fix oops when adding reject pdu

commit b815fc12d4dd2b5586184fb4f867caff05a810d4 upstream.

This fixes a oops due to a double list add when adding a reject PDU for
iscsit_allocate_iovecs allocation failures. The cmd has already been
added to the conn_cmd_list in iscsit_setup_scsi_cmd, so this has us call
iscsit_reject_cmd.

Note that for ERL0 the reject PDU is not actually sent, so this patch
is not completely tested. Just verified we do not oops. The problem is the
add reject functions return -1 which is returned all the way up to
iscsi_target_rx_thread which for ERL0 will drop the connection.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoocfs2: _really_ sync the right range
Al Viro [Wed, 8 Apr 2015 21:00:32 +0000 (17:00 -0400)]
ocfs2: _really_ sync the right range

commit 64b4e2526d1cf6e6a4db6213d6e2b6e6ab59479a upstream.

"ocfs2 syncs the wrong range" had been broken; prior to it the
code was doing the wrong thing in case of O_APPEND, all right,
but _after_ it we were syncing the wrong range in 100% cases.
*ppos, aka iocb->ki_pos is incremented prior to that point,
so we are always doing sync on the area _after_ the one we'd
written to.

Spotted by Joseph Qi <joseph.qi@huawei.com> back in January;
unfortunately, I'd missed his mail back then ;-/

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agobe2iscsi: Fix kernel panic when device initialization fails
John Soni Jose [Thu, 12 Feb 2015 01:15:47 +0000 (06:45 +0530)]
be2iscsi: Fix kernel panic when device initialization fails

commit 2e7cee027b26cbe7e6685a7a14bd2850bfe55d33 upstream.

Kernel panic was happening as iscsi_host_remove() was called on
a host which was not yet added.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agocifs: fix use-after-free bug in find_writable_file
David Disseldorp [Fri, 13 Mar 2015 13:20:29 +0000 (14:20 +0100)]
cifs: fix use-after-free bug in find_writable_file

commit e1e9bda22d7ddf88515e8fe401887e313922823e upstream.

Under intermittent network outages, find_writable_file() is susceptible
to the following race condition, which results in a user-after-free in
the cifs_writepages code-path:

Thread 1                                        Thread 2
========                                        ========

inv_file = NULL
refind = 0
spin_lock(&cifs_file_list_lock)

// invalidHandle found on openFileList

inv_file = open_file
// inv_file->count currently 1

cifsFileInfo_get(inv_file)
// inv_file->count = 2

spin_unlock(&cifs_file_list_lock);

cifs_reopen_file()                            cifs_close()
// fails (rc != 0)                            ->cifsFileInfo_put()
                                       spin_lock(&cifs_file_list_lock)
                                       // inv_file->count = 1
                                       spin_unlock(&cifs_file_list_lock)

spin_lock(&cifs_file_list_lock);
list_move_tail(&inv_file->flist,
      &cifs_inode->openFileList);
spin_unlock(&cifs_file_list_lock);

cifsFileInfo_put(inv_file);
->spin_lock(&cifs_file_list_lock)

  // inv_file->count = 0
  list_del(&cifs_file->flist);
  // cleanup!!
  kfree(cifs_file);

  spin_unlock(&cifs_file_list_lock);

spin_lock(&cifs_file_list_lock);
++refind;
// refind = 1
goto refind_writable;

At this point we loop back through with an invalid inv_file pointer
and a refind value of 1. On second pass, inv_file is not overwritten on
openFileList traversal, and is subsequently dereferenced.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: Jeff Layton <jlayton@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agousb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers
Lu Baolu [Mon, 23 Mar 2015 16:27:42 +0000 (18:27 +0200)]
usb: xhci: apply XHCI_AVOID_BEI quirk to all Intel xHCI controllers

commit 227a4fd801c8a9fa2c4700ab98ec1aec06e3b44d upstream.

When a device with an isochronous endpoint is plugged into the Intel
xHCI host controller, and the driver submits multiple frames per URB,
the xHCI driver will set the Block Event Interrupt (BEI) flag on all
but the last TD for the URB. This causes the host controller to place
an event on the event ring, but not send an interrupt. When the last
TD for the URB completes, BEI is cleared, and we get an interrupt for
the whole URB.

However, under Intel xHCI host controllers, if the event ring is full
of events from transfers with BEI set,  an "Event Ring is Full" event
will be posted to the last entry of the event ring,  but no interrupt
is generated. Host will cease all transfer and command executions and
wait until software completes handling the pending events in the event
ring.  That means xHC stops, but event of "event ring is full" is not
notified. As the result, the xHC looks like dead to user.

This patch is to apply XHCI_AVOID_BEI quirk to Intel xHC devices. And
it should be backported to kernels as old as 3.0, that contains the
commit 69e848c2090a ("Intel xhci: Support EHCI/xHCI port switching.").

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Tested-by: Alistair Grant <akgrant0710@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agocpuidle: ACPI: do not overwrite name and description of C0
Thomas Schlichter [Tue, 31 Mar 2015 18:24:39 +0000 (20:24 +0200)]
cpuidle: ACPI: do not overwrite name and description of C0

commit c7e8bdf5872c5a8f5a6494e16fe839c38a0d3d3d upstream.

Fix a bug that leads to showing the name and description of C-state C0
as "<null>" in sysfs after the ACPI C-states changed (e.g. after AC->DC
or DC->AC
transition).

The function poll_idle_init() in drivers/cpuidle/driver.c initializes the
state 0 during cpuidle_register_driver(), so we better do not overwrite it
again with '\0' during acpi_processor_cst_has_changed().

Signed-off-by: Thomas Schlichter <thomas.schlichter@web.de>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agodmaengine: omap-dma: Fix memory leak when terminating running transfer
Peter Ujfalusi [Fri, 27 Mar 2015 11:35:52 +0000 (13:35 +0200)]
dmaengine: omap-dma: Fix memory leak when terminating running transfer

commit 02d88b735f5a60f04dbf6d051b76e1877a0d0844 upstream.

In omap_dma_start_desc the vdesc->node is removed from the virt-dma
framework managed lists (to be precise from the desc_issued list).
If a terminate_all comes before the transfer finishes the omap_desc will
not be freed up because it is not in any of the lists and we stopped the
DMA channel so the transfer will not going to complete.
There is no special sequence for leaking memory when using cyclic (audio)
transfer: with every start and stop of a cyclic transfer the driver leaks
struct omap_desc worth of memory.

Free up the allocated memory directly in omap_dma_terminate_all() since the
framework will not going to do that for us.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
CC: <linux-omap@vger.kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoiio: imu: Use iio_trigger_get for indio_dev->trig assignment
Darshana Padmadas [Sat, 28 Mar 2015 06:37:14 +0000 (12:07 +0530)]
iio: imu: Use iio_trigger_get for indio_dev->trig assignment

commit 4ce7ca89d6e8eae9e201cd0e972ba323f33e2fb4 upstream.

This patch uses iio_trigger_get to increment the reference
count of trigger device, to avoid incorrect assignment.
Can result in a null pointer dereference during removal if the
trigger has been changed before removal.

This patch refers to a similar situation encountered through the
following discussion:
http://www.spinics.net/lists/linux-iio/msg13669.html

Signed-off-by: Darshana Padmadas <darshanapadmadas@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoiio: inv_mpu6050: Clear timestamps fifo while resetting hardware fifo
Viorel Suman [Wed, 18 Feb 2015 18:05:21 +0000 (20:05 +0200)]
iio: inv_mpu6050: Clear timestamps fifo while resetting hardware fifo

commit 4dac0a8eefd55bb1f157d1a5a084531334a2d74c upstream.

A hardware fifo reset always imply an invalidation of the
existing timestamps, so we'll clear timestamps fifo on
successfull hardware fifo reset.

Signed-off-by: Viorel Suman <viorel.suman@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoDefer processing of REQ_PREEMPT requests for blocked devices
Bart Van Assche [Wed, 4 Mar 2015 09:31:47 +0000 (10:31 +0100)]
Defer processing of REQ_PREEMPT requests for blocked devices

commit bba0bdd7ad4713d82338bcd9b72d57e9335a664b upstream.

SCSI transport drivers and SCSI LLDs block a SCSI device if the
transport layer is not operational. This means that in this state
no requests should be processed, even if the REQ_PREEMPT flag has
been set. This patch avoids that a rescan shortly after a cable
pull sporadically triggers the following kernel oops:

BUG: unable to handle kernel paging request at ffffc9001a6bc084
IP: [<ffffffffa04e08f2>] mlx4_ib_post_send+0xd2/0xb30 [mlx4_ib]
Process rescan-scsi-bus (pid: 9241, threadinfo ffff88053484a000, task ffff880534aae100)
Call Trace:
 [<ffffffffa0718135>] srp_post_send+0x65/0x70 [ib_srp]
 [<ffffffffa071b9df>] srp_queuecommand+0x1cf/0x3e0 [ib_srp]
 [<ffffffffa0001ff1>] scsi_dispatch_cmd+0x101/0x280 [scsi_mod]
 [<ffffffffa0009ad1>] scsi_request_fn+0x411/0x4d0 [scsi_mod]
 [<ffffffff81223b37>] __blk_run_queue+0x27/0x30
 [<ffffffff8122a8d2>] blk_execute_rq_nowait+0x82/0x110
 [<ffffffff8122a9c2>] blk_execute_rq+0x62/0xf0
 [<ffffffffa000b0e8>] scsi_execute+0xe8/0x190 [scsi_mod]
 [<ffffffffa000b2f3>] scsi_execute_req+0xa3/0x130 [scsi_mod]
 [<ffffffffa000c1aa>] scsi_probe_lun+0x17a/0x450 [scsi_mod]
 [<ffffffffa000ce86>] scsi_probe_and_add_lun+0x156/0x480 [scsi_mod]
 [<ffffffffa000dc2f>] __scsi_scan_target+0xdf/0x1f0 [scsi_mod]
 [<ffffffffa000dfa3>] scsi_scan_host_selected+0x183/0x1c0 [scsi_mod]
 [<ffffffffa000edfb>] scsi_scan+0xdb/0xe0 [scsi_mod]
 [<ffffffffa000ee13>] store_scan+0x13/0x20 [scsi_mod]
 [<ffffffff811c8d9b>] sysfs_write_file+0xcb/0x160
 [<ffffffff811589de>] vfs_write+0xce/0x140
 [<ffffffff81158b53>] sys_write+0x53/0xa0
 [<ffffffff81464592>] system_call_fastpath+0x16/0x1b
 [<00007f611c9d9300>] 0x7f611c9d92ff

Reported-by: Max Gurtuvoy <maxg@mellanox.com>
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoUSB: ftdi_sio: Use jtag quirk for SNAP Connect E10
Doug Goldstein [Tue, 24 Mar 2015 01:34:48 +0000 (20:34 -0500)]
USB: ftdi_sio: Use jtag quirk for SNAP Connect E10

commit b229a0f840f774d29d8fedbf5deb344ca36b7f1a upstream.

This patch uses the existing CALAO Systems ftdi_8u2232c_probe in order
to avoid attaching a TTY to the JTAG port as this board is based on the
CALAO Systems reference design and needs the same fix up.

Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
[johan: clean up probe logic ]
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoUSB: ftdi_sio: Added custom PID for Synapse Wireless product
Doug Goldstein [Mon, 16 Mar 2015 02:56:04 +0000 (21:56 -0500)]
USB: ftdi_sio: Added custom PID for Synapse Wireless product

commit 4899c054a90439477b24da8977db8d738376fe90 upstream.

Synapse Wireless uses the FTDI VID with a custom PID of 0x9090 for their
SNAP Stick 200 product.

Signed-off-by: Doug Goldstein <cardoe@cardoe.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoradeon: Do not directly dereference pointers to BIOS area.
David Miller [Thu, 19 Mar 2015 03:18:40 +0000 (23:18 -0400)]
radeon: Do not directly dereference pointers to BIOS area.

commit f2c9e560b406f2f6b14b345c7da33467dee9cdf2 upstream.

Use readb() and memcpy_fromio() accessors instead.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agowriteback: fix possible underflow in write bandwidth calculation
Tejun Heo [Mon, 23 Mar 2015 04:18:48 +0000 (00:18 -0400)]
writeback: fix possible underflow in write bandwidth calculation

commit c72efb658f7c8b27ca3d0efb5cfd5ded9fcac89e upstream.

From 1ebf33901ecc75d9496862dceb1ef0377980587c Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 23 Mar 2015 00:08:19 -0400

2f800fbd777b ("writeback: fix dirtied pages accounting on redirty")
introduced account_page_redirty() which reverts stat updates for a
redirtied page, making BDI_DIRTIED no longer monotonically increasing.

bdi_update_write_bandwidth() uses the delta in BDI_DIRTIED as the
basis for bandwidth calculation.  While unlikely, since the above
patch, the newer value may be lower than the recorded past value and
underflow the bandwidth calculation leading to a wild result.

Fix it by subtracing min of the old and new values when calculating
delta.  AFAIK, there hasn't been any report of it happening but the
resulting erratic behavior would be non-critical and temporary, so
it's possible that the issue is happening without being reported.  The
risk of the fix is very low, so tagged for -stable.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jan Kara <jack@suse.cz>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Greg Thelen <gthelen@google.com>
Fixes: 2f800fbd777b ("writeback: fix dirtied pages accounting on redirty")
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agowriteback: add missing INITIAL_JIFFIES init in global_update_bandwidth()
Tejun Heo [Wed, 4 Mar 2015 15:37:43 +0000 (10:37 -0500)]
writeback: add missing INITIAL_JIFFIES init in global_update_bandwidth()

commit 7d70e15480c0450d2bfafaad338a32e884fc215e upstream.

global_update_bandwidth() uses static variable update_time as the
timestamp for the last update but forgets to initialize it to
INITIALIZE_JIFFIES.

This means that global_dirty_limit will be 5 mins into the future on
32bit and some large amount jiffies into the past on 64bit.  This
isn't critical as the only effect is that global_dirty_limit won't be
updated for the first 5 mins after booting on 32bit machines,
especially given the auxiliary nature of global_dirty_limit's role -
protecting against global dirty threshold's sudden dips; however, it
does lead to unintended suboptimal behavior.  Fix it.

Fixes: c42843f2f0bb ("writeback: introduce smoothed global dirty limit")
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jan Kara <jack@suse.cz>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jens Axboe <axboe@fb.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agomm/memory hotplug: postpone the reset of obsolete pgdat
Gu Zheng [Wed, 25 Mar 2015 22:55:20 +0000 (15:55 -0700)]
mm/memory hotplug: postpone the reset of obsolete pgdat

commit b0dc3a342af36f95a68fe229b8f0f73552c5ca08 upstream.

Qiu Xishi reported the following BUG when testing hot-add/hot-remove node under
stress condition:

  BUG: unable to handle kernel paging request at 0000000000025f60
  IP: next_online_pgdat+0x1/0x50
  PGD 0
  Oops: 0000 [#1] SMP
  ACPI: Device does not support D3cold
  Modules linked in: fuse nls_iso8859_1 nls_cp437 vfat fat loop dm_mod coretemp mperf crc32c_intel ghash_clmulni_intel aesni_intel ablk_helper cryptd lrw gf128mul glue_helper aes_x86_64 pcspkr microcode igb dca i2c_algo_bit ipv6 megaraid_sas iTCO_wdt i2c_i801 i2c_core iTCO_vendor_support tg3 sg hwmon ptp lpc_ich pps_core mfd_core acpi_pad rtc_cmos button ext3 jbd mbcache sd_mod crc_t10dif scsi_dh_alua scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc scsi_dh ahci libahci libata scsi_mod [last unloaded: rasf]
  CPU: 23 PID: 238 Comm: kworker/23:1 Tainted: G           O 3.10.15-5885-euler0302 #1
  Hardware name: HUAWEI TECHNOLOGIES CO.,LTD. Huawei N1/Huawei N1, BIOS V100R001 03/02/2015
  Workqueue: events vmstat_update
  task: ffffa800d32c0000 ti: ffffa800d32ae000 task.ti: ffffa800d32ae000
  RIP: 0010: next_online_pgdat+0x1/0x50
  RSP: 0018:ffffa800d32afce8  EFLAGS: 00010286
  RAX: 0000000000001440 RBX: ffffffff81da53b8 RCX: 0000000000000082
  RDX: 0000000000000000 RSI: 0000000000000082 RDI: 0000000000000000
  RBP: ffffa800d32afd28 R08: ffffffff81c93bfc R09: ffffffff81cbdc96
  R10: 00000000000040ec R11: 00000000000000a0 R12: ffffa800fffb3440
  R13: ffffa800d32afd38 R14: 0000000000000017 R15: ffffa800e6616800
  FS:  0000000000000000(0000) GS:ffffa800e6600000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 0000000000025f60 CR3: 0000000001a0b000 CR4: 00000000001407e0
  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
  Call Trace:
    refresh_cpu_vm_stats+0xd0/0x140
    vmstat_update+0x11/0x50
    process_one_work+0x194/0x3d0
    worker_thread+0x12b/0x410
    kthread+0xc6/0xd0
    ret_from_fork+0x7c/0xb0

The cause is the "memset(pgdat, 0, sizeof(*pgdat))" at the end of
try_offline_node, which will reset all the content of pgdat to 0, as the
pgdat is accessed lock-free, so that the users still using the pgdat
will panic, such as the vmstat_update routine.

process A: offline node XX:

vmstat_updat()
   refresh_cpu_vm_stats()
     for_each_populated_zone()
       find online node XX
     cond_resched()
offline cpu and memory, then try_offline_node()
node_set_offline(nid), and memset(pgdat, 0, sizeof(*pgdat))
       zone = next_zone(zone)
         pg_data_t *pgdat = zone->zone_pgdat;  // here pgdat is NULL now
           next_online_pgdat(pgdat)
             next_online_node(pgdat->node_id);  // NULL pointer access

So the solution here is postponing the reset of obsolete pgdat from
try_offline_node() to hotadd_new_pgdat(), and just resetting
pgdat->nr_zones and pgdat->classzone_idx to be 0 rather than the memset
0 to avoid breaking pointer information in pgdat.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Reported-by: Xishi Qiu <qiuxishi@huawei.com>
Suggested-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Xie XiuQi <xiexiuqi@huawei.com>
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>
9 years agonbd: fix possible memory leak
Sudip Mukherjee [Tue, 27 Jan 2015 12:38:22 +0000 (18:08 +0530)]
nbd: fix possible memory leak

commit ff6b8090e26ef7649ef0cc6b42389141ef48b0cf upstream.

we have already allocated memory for nbd_dev, but we were not
releasing that memory and just returning the error value.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Acked-by: Paul Clements <Paul.Clements@SteelEye.com>
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoiwlwifi: dvm: run INIT firmware again upon .start()
Emmanuel Grumbach [Mon, 16 Mar 2015 07:08:07 +0000 (09:08 +0200)]
iwlwifi: dvm: run INIT firmware again upon .start()

commit 9c8928f5176766bec79f272bd47b7124e11cccbd upstream.

The assumption before this patch was that we don't need to
run again the INIT firmware after the system booted. The
INIT firmware runs calibrations which impact the physical
layer's behavior.
Users reported that it may be helpful to run these
calibrations again every time the interface is brought up.
The penatly is minimal, since the calibrations run fast.
This fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=94341

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoIB/uverbs: Prevent integer overflow in ib_umem_get address arithmetic
Shachar Raindel [Wed, 18 Mar 2015 17:39:08 +0000 (17:39 +0000)]
IB/uverbs: Prevent integer overflow in ib_umem_get address arithmetic

commit 8494057ab5e40df590ef6ef7d66324d3ae33356b upstream.

Properly verify that the resulting page aligned end address is larger
than both the start address and the length of the memory area requested.

Both the start and length arguments for ib_umem_get are controlled by
the user. A misbehaving user can provide values which will cause an
integer overflow when calculating the page aligned end address.

This overflow can cause also miscalculation of the number of pages
mapped, and additional logic issues.

Addresses: CVE-2014-8159
Signed-off-by: Shachar Raindel <raindel@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoIB/core: Avoid leakage from kernel to user space
Eli Cohen [Sun, 14 Sep 2014 13:47:52 +0000 (16:47 +0300)]
IB/core: Avoid leakage from kernel to user space

commit 377b513485fd885dea1083a9a5430df65b35e048 upstream.

Clear the reserved field of struct ib_uverbs_async_event_desc which is
copied to user space.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agotcp: Fix crash in TCP Fast Open
Ben Hutchings [Wed, 15 Apr 2015 18:00:32 +0000 (19:00 +0100)]
tcp: Fix crash in TCP Fast Open

Commit 355a901e6cf1 ("tcp: make connect() mem charging friendly")
changed tcp_send_syn_data() to perform an open-coded copy of the 'syn'
skb rather than using skb_copy_expand().

The open-coded copy does not cover the skb_shared_info::gso_segs
field, so in the new skb it is left set to 0.  When this commit was
backported into stable branches between 3.10.y and 3.16.7-ckty
inclusive, it triggered the BUG() in tcp_transmit_skb().

Since Linux 3.18 the GSO segment count is kept in the
tcp_skb_cb::tcp_gso_segs field and tcp_send_syn_data() does copy the
tcp_skb_cb structure to the new skb, so mainline and newer stable
branches are not affected.

Set skb_shared_info::gso_segs to the correct value of 1.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoselinux: fix sel_write_enforce broken return value
Joe Perches [Tue, 24 Mar 2015 01:01:35 +0000 (18:01 -0700)]
selinux: fix sel_write_enforce broken return value

commit 6436a123a147db51a0b06024a8350f4c230e73ff upstream.

Return a negative error value like the rest of the entries in this function.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
[PM: tweaked subject line]
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
9 years agoALSA: hda - Fix headphone pin config for Lifebook T731
Takashi Iwai [Wed, 8 Apr 2015 18:47:55 +0000 (20:47 +0200)]
ALSA: hda - Fix headphone pin config for Lifebook T731

commit cc7016ab1a22fb26f388c2fb2b692b89897cbc3e upstream.

Some BIOS version of Fujitsu Lifebook T731 seems to set up the
headphone pin (0x21) without the assoc number 0x0f while it's set only
to the output on the docking port (0x1a).  With the recent commit
[03ad6a8c93b6: ALSA: hda - Fix "PCM" name being used on one DAC when
 there are two DACs], this resulted in the weird mixer element
mapping where the headphone on the laptop is assigned as a shared
volume with the speaker and the docking port is assigned as an
individual headphone.

This patch improves the situation by correcting the headphone pin
config to the more appropriate value.

Reported-and-tested-by: Taylor Smock <smocktaylor@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>