[PATCH net-next 05/15] mac80211: Don't access sk_queue_head->next directly.
From: David Miller <davem@davemloft.net>
Date: 2018-09-09 00:57:14
Subsystem:
mac80211, the rest · Maintainers:
Johannes Berg, Linus Torvalds
Use __skb_peek() instead. Signed-off-by: David S. Miller <davem@davemloft.net> --- net/mac80211/rx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
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
--
2.17.1