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wifi: ieee80211: check for NULL in ieee80211_mle_size_ok() 

[ Upstream commit b7793a1a2f370c28b17d9554b58e9dc51afcfcbd ]

For simplicity, we may want to pass a NULL element, and
while we should then pass also a zero length, just be a
bit more careful here.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20240318184907.4d983653cb8d.Ic3ea99b60c61ac2f7d38cb9fd202a03c97a05601@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Johannes Berg 2024-03-18 18:53:17 +02:00 committed by Greg Kroah-Hartman
parent 5266cbcf3a
commit e6bb84cb47
1 changed files with 1 additions and 1 deletions
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2
include/linux/ieee80211.h
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@ -4952,7 +4952,7 @@ static inline bool ieee80211_mle_size_ok(const u8 *data, size_t len)
bool check_common_len = false;
u16 control;
if (len < fixed)
if (!data || len < fixed)
return false;
control = le16_to_cpu(mle->control);