From e0830f71e7b8c2c58031c9692384819943162e9b Mon Sep 17 00:00:00 2001 From: Arik Nemtsov Date: Thu, 10 Nov 2011 09:35:13 +0200 Subject: [PATCH] mac80211: make sure hw_key exists before checking its flags Fixes a bug introduced in: commit 077a9154898b374f20555adc3f620cccd02581d6 Author: Arik Nemtsov Date: Sun Oct 23 08:21:41 2011 +0200 Reported-by: Arend van Spriel Reported-by: Johannes Berg Signed-off-by: Arik Nemtsov Signed-off-by: John W. Linville --- net/mac80211/wpa.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 13efab5bf12a..106e15a4649f 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -415,7 +415,8 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb) memmove(pos, pos + CCMP_HDR_LEN, hdrlen); /* the HW only needs room for the IV, but not the actual IV */ - if (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE) + if (info->control.hw_key && + (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)) return 0; hdr = (struct ieee80211_hdr *) pos; -- 2.39.5