mac80211: validate extended element ID is present

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

Fixes: 41cbb0f5a2 ("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>

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Johannes Berg 2021-12-11 20:10:24 +01:00

parent e08ebd6d7b

commit 768c0b19b5

1 changed files with 6 additions and 1 deletions

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net/mac80211/util.c

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