diff --git a/net/ipv4/esp4_offload.c b/net/ipv4/esp4_offload.c index b1338e576d00389db8b6ce2383550e9aa22a4399..29b333a62ab01d606301ae45a7ec5f198cf1a5a0 100644 --- a/net/ipv4/esp4_offload.c +++ b/net/ipv4/esp4_offload.c @@ -122,6 +122,9 @@ static struct sk_buff *esp4_gso_segment(struct sk_buff *skb, if (!xo) goto out; + if (!(skb_shinfo(skb)->gso_type & SKB_GSO_ESP)) + goto out; + seq = xo->seq.low; x = skb->sp->xvec[skb->sp->len - 1]; diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c index b6a2aa1dcf56cbaa029b0ec6c5e512e33c90fff9..4d58e2ce0b5b181b39aeb12f8761ba016606dd43 100644 --- a/net/ipv4/tcp_offload.c +++ b/net/ipv4/tcp_offload.c @@ -32,6 +32,9 @@ static void tcp_gso_tstamp(struct sk_buff *skb, unsigned int ts_seq, static struct sk_buff *tcp4_gso_segment(struct sk_buff *skb, netdev_features_t features) { + if (!(skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4)) + return ERR_PTR(-EINVAL); + if (!pskb_may_pull(skb, sizeof(struct tcphdr))) return ERR_PTR(-EINVAL); diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c index 01801b77bd0da45764fd0e9a80f22b0e46633934..ea6e6e7df0eec8e79f631851846cf6957014c162 100644 --- a/net/ipv4/udp_offload.c +++ b/net/ipv4/udp_offload.c @@ -203,6 +203,9 @@ static struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb, goto out; } + if (!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP)) + goto out; + if (!pskb_may_pull(skb, sizeof(struct udphdr))) goto out; diff --git a/net/ipv6/esp6_offload.c b/net/ipv6/esp6_offload.c index dd9627490c7ca22bda9fe3cca13b72c60f6865de..f52c314d4c97086fba003709f506ec7e408baba8 100644 --- a/net/ipv6/esp6_offload.c +++ b/net/ipv6/esp6_offload.c @@ -149,6 +149,9 @@ static struct sk_buff *esp6_gso_segment(struct sk_buff *skb, if (!xo) goto out; + if (!(skb_shinfo(skb)->gso_type & SKB_GSO_ESP)) + goto out; + seq = xo->seq.low; x = skb->sp->xvec[skb->sp->len - 1]; diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c index d883c9204c01d525fcd51012c34afbf5f8af11ed..278e49cd67d4e2c7b0ab9138fabe84753d628b5a 100644 --- a/net/ipv6/tcpv6_offload.c +++ b/net/ipv6/tcpv6_offload.c @@ -46,6 +46,9 @@ static struct sk_buff *tcp6_gso_segment(struct sk_buff *skb, { struct tcphdr *th; + if (!(skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)) + return ERR_PTR(-EINVAL); + if (!pskb_may_pull(skb, sizeof(*th))) return ERR_PTR(-EINVAL); diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c index a0f89ad76f9d2233b9e048418069aacd92ac6a25..2a04dc9c781b5f236fbe6dc3804f5eeed174ee44 100644 --- a/net/ipv6/udp_offload.c +++ b/net/ipv6/udp_offload.c @@ -42,6 +42,9 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb, const struct ipv6hdr *ipv6h; struct udphdr *uh; + if (!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP)) + goto out; + if (!pskb_may_pull(skb, sizeof(struct udphdr))) goto out; diff --git a/net/sctp/offload.c b/net/sctp/offload.c index 275925b93b2909a32e9a5ab83a16e9b0f5717e24..35bc7106d1827a80f1135fe4797bec36cb7c669a 100644 --- a/net/sctp/offload.c +++ b/net/sctp/offload.c @@ -45,6 +45,9 @@ static struct sk_buff *sctp_gso_segment(struct sk_buff *skb, struct sk_buff *segs = ERR_PTR(-EINVAL); struct sctphdr *sh; + if (!(skb_shinfo(skb)->gso_type & SKB_GSO_SCTP)) + goto out; + sh = sctp_hdr(skb); if (!pskb_may_pull(skb, sizeof(*sh))) goto out;