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net/ncsi: Disable the ncsi work before freeing the associated structure

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[ Upstream commit a0ffa68c70 ]

The work function can run after the ncsi device is freed, resulting
in use-after-free bugs or kernel panic.

Fixes: 2d283bdd07 ("net/ncsi: Resource management")
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://patch.msgid.link/20240925155523.1017097-1-eajames@linux.ibm.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Eddie James 2024-09-25 10:55:23 -05:00 committed by Greg Kroah-Hartman
parent 4661c91f7b
commit dd41dab62f
1 changed files with 2 additions and 0 deletions
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2
net/ncsi/ncsi-manage.c
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@ -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);