diff options
Diffstat (limited to 'net/xfrm')
| -rw-r--r-- | net/xfrm/espintcp.c | 2 | ||||
| -rw-r--r-- | net/xfrm/xfrm_device.c | 15 | ||||
| -rw-r--r-- | net/xfrm/xfrm_replay.c | 2 | ||||
| -rw-r--r-- | net/xfrm/xfrm_state.c | 2 |
4 files changed, 17 insertions, 4 deletions
diff --git a/net/xfrm/espintcp.c b/net/xfrm/espintcp.c index 29a540dcb5a7..d6fece1ed982 100644 --- a/net/xfrm/espintcp.c +++ b/net/xfrm/espintcp.c @@ -354,7 +354,7 @@ static int espintcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) *((__be16 *)buf) = cpu_to_be16(msglen); pfx_iov.iov_base = buf; pfx_iov.iov_len = sizeof(buf); - iov_iter_kvec(&pfx_iter, WRITE, &pfx_iov, 1, pfx_iov.iov_len); + iov_iter_kvec(&pfx_iter, ITER_SOURCE, &pfx_iov, 1, pfx_iov.iov_len); err = sk_msg_memcopy_from_iter(sk, &pfx_iter, &emsg->skmsg, pfx_iov.iov_len); diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c index 5f5aafd418af..21269e8f2db4 100644 --- a/net/xfrm/xfrm_device.c +++ b/net/xfrm/xfrm_device.c @@ -97,6 +97,18 @@ static void xfrm_outer_mode_prep(struct xfrm_state *x, struct sk_buff *skb) } } +static inline bool xmit_xfrm_check_overflow(struct sk_buff *skb) +{ + struct xfrm_offload *xo = xfrm_offload(skb); + __u32 seq = xo->seq.low; + + seq += skb_shinfo(skb)->gso_segs; + if (unlikely(seq < xo->seq.low)) + return true; + + return false; +} + struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t features, bool *again) { int err; @@ -134,7 +146,8 @@ struct sk_buff *validate_xmit_xfrm(struct sk_buff *skb, netdev_features_t featur return skb; } - if (skb_is_gso(skb) && unlikely(x->xso.dev != dev)) { + if (skb_is_gso(skb) && (unlikely(x->xso.dev != dev) || + unlikely(xmit_xfrm_check_overflow(skb)))) { struct sk_buff *segs; /* Packet got rerouted, fixup features and segment it. */ diff --git a/net/xfrm/xfrm_replay.c b/net/xfrm/xfrm_replay.c index 9f4d42eb090f..ce56d659c55a 100644 --- a/net/xfrm/xfrm_replay.c +++ b/net/xfrm/xfrm_replay.c @@ -714,7 +714,7 @@ static int xfrm_replay_overflow_offload_esn(struct xfrm_state *x, struct sk_buff oseq += skb_shinfo(skb)->gso_segs; } - if (unlikely(oseq < replay_esn->oseq)) { + if (unlikely(xo->seq.low < replay_esn->oseq)) { XFRM_SKB_CB(skb)->seq.output.hi = ++oseq_hi; xo->seq.hi = oseq_hi; replay_esn->oseq_hi = oseq_hi; diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 3d2fe7712ac5..d63a3644ee1a 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -2072,7 +2072,7 @@ int xfrm_alloc_spi(struct xfrm_state *x, u32 low, u32 high) } else { u32 spi = 0; for (h = 0; h < high-low+1; h++) { - spi = low + prandom_u32_max(high - low + 1); + spi = get_random_u32_inclusive(low, high); x0 = xfrm_state_lookup(net, mark, &x->id.daddr, htonl(spi), x->id.proto, x->props.family); if (x0 == NULL) { newspi = htonl(spi); |