wifi: nl80211: fix NULL-ptr deref in offchan check

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[ Upstream commit f624bb6fad ]

If, e.g. in AP mode, the link was already created by userspace
but not activated yet, it has a chandef but the chandef isn't
valid and has no channel. Check for this and ignore this link.

Fixes: 7b0a0e3c3a ("wifi: cfg80211: do some rework towards MLO link APIs")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230301115906.71bd4803fbb9.Iee39c0f6c2d3a59a8227674dc55d52e38b1090cf@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Johannes Berg 2023-03-01 12:09:29 +02:00 • committed by Greg Kroah-Hartman

parent c904bd7ff8

commit 201a836c23

1 changed files with 1 additions and 1 deletions

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net/wireless/nl80211.c

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