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| author | David S. Miller <davem@davemloft.net> | 2015-05-19 16:44:25 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-05-19 16:44:25 -0400 |
| commit | 892bd6291ac122e3cdb354ef39567c9127768916 (patch) | |
| tree | b782591e9bb10828420418b1047d8e69128b5c46 | |
| parent | b7b0ed910cd8450db6d98cd4361c644bb1c88412 (diff) | |
| parent | 47b4e1fc4972cc43a19121bc2608a60aef3bf216 (diff) | |
| download | linux-892bd6291ac122e3cdb354ef39567c9127768916.tar.bz2 | |
Merge tag 'mac80211-for-davem-2015-05-19' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
This has just a single fix, for a WEP tailroom check
problem that leads to dropped frames.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/mac80211/wep.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index a4220e92f0cc..efa3f48f1ec5 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -98,8 +98,7 @@ static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local, hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); - if (WARN_ON(skb_tailroom(skb) < IEEE80211_WEP_ICV_LEN || - skb_headroom(skb) < IEEE80211_WEP_IV_LEN)) + if (WARN_ON(skb_headroom(skb) < IEEE80211_WEP_IV_LEN)) return NULL; hdrlen = ieee80211_hdrlen(hdr->frame_control); @@ -167,6 +166,9 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local, size_t len; u8 rc4key[3 + WLAN_KEY_LEN_WEP104]; + if (WARN_ON(skb_tailroom(skb) < IEEE80211_WEP_ICV_LEN)) + return -1; + iv = ieee80211_wep_add_iv(local, skb, keylen, keyidx); if (!iv) return -1; |