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ALSA: usb-audio: Sanity checks for each pipe and EP types
authorTakashi Iwai <[email protected]>
Mon, 24 Jun 2019 13:08:28 +0000 (15:08 +0200)
committerTakashi Iwai <[email protected]>
Mon, 24 Jun 2019 13:11:06 +0000 (15:11 +0200)
commit801ebf1043ae7b182588554cc9b9ad3c14bc2ab5
tree0259d975fddf2d2efd55f82377fad81357d1591etree | snapshot
parentc5dfd4b885284e4eaaf66172b918894fdde7eb06commit | diff
ALSA: usb-audio: Sanity checks for each pipe and EP types

The recent USB core code performs sanity checks for the given pipe and
EP types, and it can be hit by manipulated USB descriptors by syzbot.
For making syzbot happier, this patch introduces a local helper for a
sanity check in the driver side and calls it at each place before the
message handling, so that we can avoid the WARNING splats.

Reported-by: [email protected]
Signed-off-by: Takashi Iwai <[email protected]>
sound/usb/helper.c diff | blob | blame | history
sound/usb/helper.h diff | blob | blame | history
sound/usb/quirks.c diff | blob | blame | history
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