This is a note to let you know that I've just added the patch titled
kcm: Destroy mutex in kcm_exit_net()
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kcm-destroy-mutex-in-kcm_exit_net.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 37fa8710710015b30b06276837da38e66a2fc5f2
Author: Shigeru Yoshida <syoshida@xxxxxxxxxx>
Date: Sun Sep 3 02:07:08 2023 +0900
kcm: Destroy mutex in kcm_exit_net()
[ Upstream commit 6ad40b36cd3b04209e2d6c89d252c873d8082a59 ]
kcm_exit_net() should call mutex_destroy() on knet->mutex. This is especially
needed if CONFIG_DEBUG_MUTEXES is enabled.
Fixes: ab7ac4eb9832 ("kcm: Kernel Connection Multiplexor module")
Signed-off-by: Shigeru Yoshida <syoshida@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230902170708.1727999-1-syoshida@xxxxxxxxxx
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index c0034546a9edf..55f1bf7a84490 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -1983,6 +1983,8 @@ static __net_exit void kcm_exit_net(struct net *net)
* that all multiplexors and psocks have been destroyed.
*/
WARN_ON(!list_empty(&knet->mux_list));
+
+ mutex_destroy(&knet->mutex);
}
static struct pernet_operations kcm_net_ops = {
