This is a note to let you know that I've just added the patch titled
net/ncsi: Disable the ncsi work before freeing the associated structure
to the 6.11-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:
net-ncsi-disable-the-ncsi-work-before-freeing-the-as.patch
and it can be found in the queue-6.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit f34d1e5dfc7d1df2fa87faa99155ee5fb0c066d1
Author: Eddie James <eajames@xxxxxxxxxxxxx>
Date: Wed Sep 25 10:55:23 2024 -0500
net/ncsi: Disable the ncsi work before freeing the associated structure
[ Upstream commit a0ffa68c70b367358b2672cdab6fa5bc4c40de2c ]
The work function can run after the ncsi device is freed, resulting
in use-after-free bugs or kernel panic.
Fixes: 2d283bdd079c ("net/ncsi: Resource management")
Signed-off-by: Eddie James <eajames@xxxxxxxxxxxxx>
Link: https://patch.msgid.link/20240925155523.1017097-1-eajames@xxxxxxxxxxxxx
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/net/ncsi/ncsi-manage.c b/net/ncsi/ncsi-manage.c
index 5ecf611c88200..5cf55bde366d1 100644
--- a/net/ncsi/ncsi-manage.c
+++ b/net/ncsi/ncsi-manage.c
@@ -1954,6 +1954,8 @@ void ncsi_unregister_dev(struct ncsi_dev *nd)
list_del_rcu(&ndp->node);
spin_unlock_irqrestore(&ncsi_dev_lock, flags);
+ disable_work_sync(&ndp->work);
+
kfree(ndp);
}
EXPORT_SYMBOL_GPL(ncsi_unregister_dev);
