2024-03-18 16:53:54

by Miri Korenblit

[permalink] [raw]
Subject: [PATCH 01/15] wifi: ieee80211: check for NULL in ieee80211_mle_size_ok()

From: Johannes Berg <[email protected]>

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 <[email protected]>
Signed-off-by: Miri Korenblit <[email protected]>
---
include/linux/ieee80211.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 3385a2cc5b09..a99f048404b8 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -5166,7 +5166,7 @@ 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);
--
2.34.1