wifi: mac80211_hwsim: drop short frames
[ Upstream commit fba360a0 ] While technically some control frames like ACK are shorter and end after Address 1, such frames shouldn't be forwarded through wmediumd or similar userspace, so require the full 3-address header to avoid accessing invalid memory if shorter frames are passed in. Reported-by: <syzbot+b2645b5bf1512b81fa22@syzkaller.appspotmail.com> Reviewed-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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