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| author | Fabio M. De Francesco <fmdefrancesco@gmail.com> | 2022-04-09 04:26:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-20 10:34:19 +0300 |
| commit | 63038f6e96a77a0abf8083649c53e6a72c1a0124 (patch) | |
| tree | ae7f4ab3fc16f4d8d8941a744ccec4ed405144a0 /net | |
| parent | a53062c94b8c7878850eef46c7022c362bc5ab7f (diff) | |
| download | linux-63038f6e96a77a0abf8083649c53e6a72c1a0124.tar.xz | |
ALSA: pcm: Test for "silence" field in struct "pcm_format_data"
commit 2f7a26abb8241a0208c68d22815aa247c5ddacab upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions