diff options
| author | Takashi Iwai <tiwai@suse.de> | 2021-12-01 08:36:04 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-12-14 10:03:49 +0100 |
| commit | be8869d388593e57223ad39297c8e54be632f2f2 (patch) | |
| tree | cbc79f2fb67b44aa5b2864dcbae41d87f57d8a83 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | e35ddb1f575d584db3b97c920286ddc492512ea4 (diff) | |
ALSA: pcm: oss: Fix negative period/buffer sizes
commit 9d2479c960875ca1239bcb899f386970c13d9cfe upstream.
The period size calculation in OSS layer may receive a negative value
as an error, but the code there assumes only the positive values and
handle them with size_t. Due to that, a too big value may be passed
to the lower layers.
This patch changes the code to handle with ssize_t and adds the proper
error checks appropriately.
Reported-by: syzbot+bb348e9f9a954d42746f@syzkaller.appspotmail.com
Reported-by: Bixuan Cui <cuibixuan@linux.alibaba.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1638270978-42412-1-git-send-email-cuibixuan@linux.alibaba.com
Link: https://lore.kernel.org/r/20211201073606.11660-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions