diff options
| author | Takashi Iwai <tiwai@suse.de> | 2020-12-06 09:35:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-06 14:45:00 +0100 |
| commit | 64b2a977e116835dbe184a2f44d90b61c84fb5e8 (patch) | |
| tree | 9d325f0e85bdfeddb19a66c93c91ca3bbd8160f7 /kernel | |
| parent | 2c8ccc3052d83f84729b0173863677ce4066d151 (diff) | |
ALSA: rawmidi: Access runtime->avail always in spinlock
commit 88a06d6fd6b369d88cec46c62db3e2604a2f50d5 upstream.
The runtime->avail field may be accessed concurrently while some
places refer to it without taking the runtime->lock spinlock, as
detected by KCSAN. Usually this isn't a big problem, but for
consistency and safety, we should take the spinlock at each place
referencing this field.
Reported-by: syzbot+a23a6f1215c84756577c@syzkaller.appspotmail.com
Reported-by: syzbot+3d367d1df1d2b67f5c19@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20201206083527.21163-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions