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(parent: 6cba2f0) | 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)
commit709c94e4e6b4c667a3b5710a6953ba2af7e8f2c9
treeaf5236022765bb6604de0758f5ef28e333cc09fctree | snapshot
parent6cba2f0023f19ee77f126fa83cfd458ebef062f8commit | 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: d5416919e1b4 ("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 | history
Linux Kernel Source Tree.