From: Jiri Slaby <jslaby@suse.cz>
Date: Sun, 17 Feb 2013 13:33:04 +0000 (+0100)
Subject: ALSA: usb/quirks, fix out-of-bounds access
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4909a0caabb8b4352efcea223e58b86f8bc1f98b;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

ALSA: usb/quirks, fix out-of-bounds access

bootresponse in snd_usb_mbox2_boot_quirk is only 12 (decimal) u8's
long, but i9s passed to snd_usb_ctl_msg as it would be 0x12 (hexa)
long. Fix that by having proper size of the array, i.e. 0x12.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 7d7ad0b0620e..5325a3869bb7 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -533,7 +533,7 @@ static int snd_usb_mbox2_boot_quirk(struct usb_device *dev)
 {
 	struct usb_host_config *config = dev->actconfig;
 	int err;
-	u8 bootresponse[12];
+	u8 bootresponse[0x12];
 	int fwsize;
 	int count;