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authorDavid S. Miller <davem@davemloft.net>2018-08-06 22:49:13 -0700
committerDavid S. Miller <davem@davemloft.net>2018-09-10 10:06:53 -0700
commit7957a9dea8bf58b02e6ebf28f91c4bce74b5c91c (patch)
tree5c908bd6fd2d868f01fd14cad8b640ca07c771b7 /net/mac80211
parent8b69bd7d8a8927d537f134c37bcca6cbfa58e1b2 (diff)
downloadlinux-7957a9dea8bf58b02e6ebf28f91c4bce74b5c91c.tar.bz2
mac80211: Don't access sk_queue_head->next directly.
Use __skb_peek() instead. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/rx.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index c6bfd4019d44..a0ca27aeb732 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2077,6 +2077,7 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
idx = sdata->fragment_next;
for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
struct ieee80211_hdr *f_hdr;
+ struct sk_buff *f_skb;
idx--;
if (idx < 0)
@@ -2088,7 +2089,8 @@ ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
entry->last_frag + 1 != frag)
continue;
- f_hdr = (struct ieee80211_hdr *)entry->skb_list.next->data;
+ f_skb = __skb_peek(&entry->skb_list);
+ f_hdr = (struct ieee80211_hdr *) f_skb->data;
/*
* Check ftype and addresses are equal, else check next fragment