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(parent: d776763) | patch
wifi: mac80211: potential NULL dereference in ieee80211_tx_control_port()
authorDan Carpenter <dan.carpenter@oracle.com>
Thu, 28 Jul 2022 14:25:16 +0000 (17:25 +0300)
committerJohannes Berg <johannes.berg@intel.com>
Thu, 25 Aug 2022 08:05:25 +0000 (10:05 +0200)
commit55f0a4894484e8d6ddf662f5aebbf3b4cb028541
treeaf5236022765bb6604de0758f5ef28e333cc09fctree | snapshot
parentd776763f48084926b5d9e25507a3ddb7c9243d5ecommit | diff
wifi: mac80211: potential NULL dereference in ieee80211_tx_control_port()

The ieee80211_lookup_ra_sta() function will sometimes set "sta" to NULL
so add this NULL check to prevent an Oops.

Fixes: 9dd1953846c7 ("wifi: nl80211/mac80211: clarify link ID in control port TX")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/YuKcTAyO94YOy0Bu@kili
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
net/mac80211/tx.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git