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| author | Takashi Iwai <tiwai@suse.de> | 2018-09-03 15:16:43 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-09-03 15:16:43 +0200 |
| commit | 5a7b44a8df822e0667fc76ed7130252523993bda (patch) | |
| tree | 7fcc7ecd8dee882d67f5f810eea08dfc38b866b3 /init | |
| parent | 16037643969e095509cd8446a3f8e406a6dc3a2c (diff) | |
| download | linux-stable-5a7b44a8df822e0667fc76ed7130252523993bda.tar.gz linux-stable-5a7b44a8df822e0667fc76ed7130252523993bda.tar.bz2 linux-stable-5a7b44a8df822e0667fc76ed7130252523993bda.zip | |
ALSA: rawmidi: Initialize allocated buffers
syzbot reported the uninitialized value exposure in certain situations
using virmidi loop. It's likely a very small race at writing and
reading, and the influence is almost negligible. But it's safer to
paper over this just by replacing the existing kvmalloc() with
kvzalloc().
Reported-by: syzbot+194dffdb8b22fc5d207a@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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