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(parent: e070c0c) | patch
mac80211: validate extended element ID is present
authorJohannes Berg <johannes.berg@intel.com>
Sat, 11 Dec 2021 19:10:24 +0000 (20:10 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 22 Dec 2021 08:29:39 +0000 (09:29 +0100)
commita19cf6844b509d44ecbd536f33d314d91ecdd2b5
tree2f9b227bded9cf81109d817ed574613d02641019tree | snapshot
parente070c0c990d77476695d81a8ce71282f44505096commit | diff
mac80211: validate extended element ID is present

commit 768c0b19b50665e337c96858aa2b7928d6dcf756 upstream.

Before attempting to parse an extended element, verify that
the extended element ID is present.

Fixes: 41cbb0f5a295 ("mac80211: add support for HE")
Reported-by: syzbot+59bdff68edce82e393b6@syzkaller.appspotmail.com
Link: https://lore.kernel.org/r/20211211201023.f30a1b128c07.I5cacc176da94ba316877c6e10fe3ceec8b4dbd7d@changeid
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/mac80211/util.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git