diff options
| -rw-r--r-- | net/sched/cls_u32.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c index 4f522143811..7416a5c73b2 100644 --- a/net/sched/cls_u32.c +++ b/net/sched/cls_u32.c @@ -134,10 +134,12 @@ next_knode: #endif for (i = n->sel.nkeys; i>0; i--, key++) { - unsigned int toff; + int toff = off + key->off + (off2 & key->offmask); __be32 *data, _data; - toff = off + key->off + (off2 & key->offmask); + if (skb_headroom(skb) + toff < 0) + goto out; + data = skb_header_pointer(skb, toff, 4, &_data); if (!data) goto out; |