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authorJohan Hovold <johan@kernel.org>2019-12-20 10:31:34 +0100
committerTakashi Iwai <tiwai@suse.de>2019-12-20 11:31:46 +0100
commit0141254b0a74b37aa7eb13d42a56adba84d51c73 (patch)
tree1095e51d158b7daa9faa3bc6080d22feff6ffd03 /tools
parentALSA: hda/realtek - Add headset Mic no shutup for ALC283 (diff)
downloadlinux-0141254b0a74b37aa7eb13d42a56adba84d51c73.tar.xz
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ALSA: usb-audio: fix set_format altsetting sanity check
Make sure to check the return value of usb_altnum_to_altsetting() to avoid dereferencing a NULL pointer when the requested alternate settings is missing. The format altsetting number may come from a quirk table and there does not seem to be any other validation of it (the corresponding index is checked however). Fixes: b099b9693d23 ("ALSA: usb-audio: Avoid superfluous usb_set_interface() calls") Cc: stable <stable@vger.kernel.org> # 4.18 Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20191220093134.1248-1-johan@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'tools')
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