[AUDIT]: Increase skb->truesize in audit_expand

[safe/jmp/linux-2.6] / kernel / audit.c

diff --git a/kernel/audit.c b/kernel/audit.c
index f93c271..801c946 100644 (file)
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1200,13 +1200,17 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask,
 static inline int audit_expand(struct audit_buffer *ab, int extra)
 {
        struct sk_buff *skb = ab->skb;
-       int ret = pskb_expand_head(skb, skb_headroom(skb), extra,
-                                  ab->gfp_mask);
+       int oldtail = skb_tailroom(skb);
+       int ret = pskb_expand_head(skb, 0, extra, ab->gfp_mask);
+       int newtail = skb_tailroom(skb);
+
        if (ret < 0) {
                audit_log_lost("out of memory in audit_expand");
                return 0;
        }
-       return skb_tailroom(skb);
+
+       skb->truesize += newtail - oldtail;
+       return newtail;
 }
 
 /*