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| author | Takashi Iwai <tiwai@suse.de> | 2019-04-12 12:37:19 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-15 12:53:06 +0300 |
| commit | bc9dcb27e9dfbddcb8e1627e509b4e4b637c4415 (patch) | |
| tree | 496015d714bcadc3deb0e4be0bb814311f2832ff /drivers/nvdimm | |
| parent | f40c32fdfbf7c0ae98404b5b7203d2fc6bc9ad78 (diff) | |
| download | linux-bc9dcb27e9dfbddcb8e1627e509b4e4b637c4415.tar.xz | |
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 'drivers/nvdimm')
0 files changed, 0 insertions, 0 deletions