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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-04-09 16:01:56 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2026-04-10 14:58:03 +0200 |
| commit | 48bd344e1040b9f2eb512be73c13f5db83efc191 (patch) | |
| tree | e56e16b353a21163f12d79f605b4d5bc39771b3a /tools/perf/scripts/python/stackcollapse.py | |
| parent | 01f218d439acd5e129d214ea57e760ee2e34e869 (diff) | |
ALSA: usx2y: us144mkii: fix NULL deref on missing interface 0
A malicious USB device with the TASCAM US-144MKII device id can have a
configuration containing bInterfaceNumber=1 but no interface 0. USB
configuration descriptors are not required to assign interface numbers
sequentially, so usb_ifnum_to_if(dev, 0) returns will NULL, which will
then be dereferenced directly.
Fix this up by checking the return value properly.
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Fixes: dee1bcf28a3d ("ALSA: usb-audio: Add initial driver for TASCAM US-144MKII")
Cc: stable <stable@kernel.org>
Assisted-by: gregkh_clanker_t1000
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/2026040955-fall-gaining-e338@gregkh
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions