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 <[email protected]> Cc: <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
tdeneau · Feb 17, 2013 · 4909a0c · 4909a0c
1 parent c881f80
commit 4909a0c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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;