diff options
| author | Cássio Gabriel <cassiogabrielcontato@gmail.com> | 2026-05-19 00:32:15 -0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2026-05-19 08:08:41 +0200 |
| commit | b59d5c51bb328a60749b4dd5fe7e649bfb4089b4 (patch) | |
| tree | a39ed5d8d6614c419c88e36560fd34673d58552f /kernel | |
| parent | 9e5fb6098d21e1f9be9982b46c3e5b8329d4e7d2 (diff) | |
ALSA: ua101: Reject too-short USB descriptors
find_format_descriptor() walks the class-specific interface extras by
advancing with bLength. It rejects descriptors that extend past the
remaining buffer, but it does not reject descriptor lengths smaller than
a USB descriptor header.
Reject too-short descriptors before using bLength to advance the local
scan. This keeps the UA-101 parser robust against malformed descriptor
data and matches the usual USB descriptor walking rules.
Fixes: 63978ab3e3e9 ("sound: add Edirol UA-101 support")
Cc: stable@vger.kernel.org
Signed-off-by: Cássio Gabriel <cassiogabrielcontato@gmail.com>
Link: https://patch.msgid.link/20260519-alsa-ua101-desc-len-v1-1-4307d1a5e054@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions