diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-12-15 23:56:43 +0900 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-12-15 23:56:43 +0900 |
| commit | 326b06a8a9b09d6d9a276fd550b6b6bb138e9a47 (patch) | |
| tree | b9bdcb0bd635b91258cec09c981af2c5dcc0f683 /net/ipv4/ip_fragment.c | |
| parent | 92b2e81d6f95bcee386abac4c4389f5b950f7bb9 (diff) | |
| parent | 9bffb1fb7c22c96d51d4ba06e2e023dd568a5872 (diff) | |
| download | op-kernel-dev-326b06a8a9b09d6d9a276fd550b6b6bb138e9a47.zip op-kernel-dev-326b06a8a9b09d6d9a276fd550b6b6bb138e9a47.tar.gz | |
Merge remote-tracking branch 'asoc/topic/core' into asoc-next
Diffstat (limited to 'net/ipv4/ip_fragment.c')
| -rw-r--r-- | net/ipv4/ip_fragment.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 448e685..8d5cc75 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -707,28 +707,27 @@ EXPORT_SYMBOL(ip_defrag); struct sk_buff *ip_check_defrag(struct sk_buff *skb, u32 user) { - const struct iphdr *iph; + struct iphdr iph; u32 len; if (skb->protocol != htons(ETH_P_IP)) return skb; - if (!pskb_may_pull(skb, sizeof(struct iphdr))) + if (!skb_copy_bits(skb, 0, &iph, sizeof(iph))) return skb; - iph = ip_hdr(skb); - if (iph->ihl < 5 || iph->version != 4) + if (iph.ihl < 5 || iph.version != 4) return skb; - if (!pskb_may_pull(skb, iph->ihl*4)) - return skb; - iph = ip_hdr(skb); - len = ntohs(iph->tot_len); - if (skb->len < len || len < (iph->ihl * 4)) + + len = ntohs(iph.tot_len); + if (skb->len < len || len < (iph.ihl * 4)) return skb; - if (ip_is_fragment(ip_hdr(skb))) { + if (ip_is_fragment(&iph)) { skb = skb_share_check(skb, GFP_ATOMIC); if (skb) { + if (!pskb_may_pull(skb, iph.ihl*4)) + return skb; if (pskb_trim_rcsum(skb, len)) return skb; memset(IPCB(skb), 0, sizeof(struct inet_skb_parm)); |
