diff options
| author |   Fabio M. De Francesco <fmdefrancesco@gmail.com> | 2022-04-09 03:26:55 +0200 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2022-04-11 09:27:56 +0200 |
| commit | 2f7a26abb8241a0208c68d22815aa247c5ddacab (patch) | |
| tree | c5396d410bc28aa30ff6f35a6660f79ec313dca9 /sound/pci/hda/patch_realtek.c | |
| parent | ALSA: usb-audio: Increase max buffer size (diff) | |
| download | linux-dev-2f7a26abb8241a0208c68d22815aa247c5ddacab.tar.xz linux-dev-2f7a26abb8241a0208c68d22815aa247c5ddacab.zip | |
ALSA: pcm: Test for "silence" field in struct "pcm_format_data"
Syzbot reports "KASAN: null-ptr-deref Write in
snd_pcm_format_set_silence".[1]
It is due to missing validation of the "silence" field of struct
"pcm_format_data" in "pcm_formats" array.
Add a test for valid "pat" and, if it is not so, return -EINVAL.
[1] https://lore.kernel.org/lkml/000000000000d188ef05dc2c7279@google.com/
Reported-and-tested-by: syzbot+205eb15961852c2c5974@syzkaller.appspotmail.com
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20220409012655.9399-1-fmdefrancesco@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_realtek.c')
0 files changed, 0 insertions, 0 deletions