diff options
author | Takashi Iwai <tiwai@suse.de> | 2019-04-12 11:37:19 +0200 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-15 11:55:00 +0200 |
commit | 6351d118c8c9a7deb71d86aee8efff2264777b6d (patch) | |
tree | 735f1237b1fd0a2b4d7aa2bc756fb6e7f6fafc3c /Makefile | |
parent | ff8386d94855909d0a0d6cf0489bd0c3c7cfbacb (diff) |
ALSA: seq: Cover unsubscribe_port() in list_mutex
commit 7c32ae35fbf9cffb7aa3736f44dec10c944ca18e upstream.
The call of unsubscribe_port() which manages the group count and
module refcount from delete_and_unsubscribe_port() looks racy; it's
not covered by the group list lock, and it's likely a cause of the
reported unbalance at port deletion. Let's move the call inside the
group list_mutex to plug the hole.
Reported-by: syzbot+e4c8abb920efa77bace9@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions