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ALSA: usb-audio: Add sanity checks in UAC3 clock parsers
authorTakashi Iwai <tiwai@suse.de>
Tue, 3 Apr 2018 15:45:19 +0000 (17:45 +0200)
committerTakashi Iwai <tiwai@suse.de>
Sat, 7 Apr 2018 11:07:17 +0000 (13:07 +0200)
commitb580fbfff13b01fa79a0760cbb6386f33bc9e10b
tree6990175a3594dab8dad9c0b2e180e927d79b272f
parentf5d76e9c40fd8791202d31c66a63f6f7ebbb8dcb
ALSA: usb-audio: Add sanity checks in UAC3 clock parsers

The UAC3 clock parser codes lack of the sanity checks for malformed
descriptors like UAC2 parser does.  Without it, the driver may lead to
a potential crash.

Fixes: 9a2fe9b801f5 ("ALSA: usb: initial USB Audio Device Class 3.0 support")
Tested-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Reviewed-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/usb/clock.c