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-Tag: v3.8.1~104
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=28aaf89cdfff86c498d0b5e2d07664e3a98a3280;p=karo-tx-linux.git

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

commit 4909a0caabb8b4352efcea223e58b86f8bc1f98b upstream.

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>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 2c971858d6b7..01152893515f 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;