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wifi: cfg80211: fix buffer overflow in elem comparison
[ Upstream commit 9f16b5c ] For vendor elements, the code here assumes that 5 octets are present without checking. Since the element itself is already checked to fit, we only need to check the length. Reported-and-tested-by: Sönke Huster <shuster@seemoo.tu-darmstadt.de> Fixes: 0b8fb82 ("cfg80211: Parsing of Multiple BSSID information in scanning") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
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