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| author | Johannes Berg <johannes.berg@intel.com> | 2014-01-23 16:20:29 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-02-04 21:58:07 +0100 |
| commit | d8ca16db6bb23d03fcb794df44bae64ae976f27c (patch) | |
| tree | f577a829374c0f9daba8bf70e1ea3d6ac107089c /net/mac80211/wpa.c | |
| parent | ae811e21df28deb4c2adab0a47fc3da4f56d777b (diff) | |
| download | linux-stable-d8ca16db6bb23d03fcb794df44bae64ae976f27c.tar.gz linux-stable-d8ca16db6bb23d03fcb794df44bae64ae976f27c.tar.bz2 linux-stable-d8ca16db6bb23d03fcb794df44bae64ae976f27c.zip | |
mac80211: add length check in ieee80211_is_robust_mgmt_frame()
A few places weren't checking that the frame passed to the
function actually has enough data even though the function
clearly documents it must have a payload byte. Make this
safer by changing the function to take an skb and checking
the length inside. The old version is preserved for now as
the rtl* drivers use it and don't have a correct skb.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/wpa.c')
| -rw-r--r-- | net/mac80211/wpa.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 4aed45c8ee3b..b8600e3c29c8 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -494,7 +494,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) hdrlen = ieee80211_hdrlen(hdr->frame_control); if (!ieee80211_is_data(hdr->frame_control) && - !ieee80211_is_robust_mgmt_frame(hdr)) + !ieee80211_is_robust_mgmt_frame(skb)) return RX_CONTINUE; data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN - |