diff options
| author | David S. Miller <davem@davemloft.net> | 2017-06-04 21:41:10 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-14 15:05:52 +0200 |
| commit | 599a4478d8cb7ad19bd946c878d59860c5df7875 (patch) | |
| tree | bedd7ea3f58d8314025db1d675f867a8dc64bb2b | |
| parent | c242e1a8140e56ff0f673ff82c4c5db3df7d4d4a (diff) | |
ipv6: Fix leak in ipv6_gso_segment().
[ Upstream commit e3e86b5119f81e5e2499bea7ea1ebe8ac6aab789 ]
If ip6_find_1stfragopt() fails and we return an error we have to free
up 'segs' because nobody else is going to.
Fixes: 2423496af35d ("ipv6: Prevent overrun when parsing v6 header options")
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | net/ipv6/ip6_offload.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c index 013086b248e2..424fbe1f8978 100644 --- a/net/ipv6/ip6_offload.c +++ b/net/ipv6/ip6_offload.c @@ -116,8 +116,10 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, if (udpfrag) { int err = ip6_find_1stfragopt(skb, &prevhdr); - if (err < 0) + if (err < 0) { + kfree_skb_list(segs); return ERR_PTR(err); + } fptr = (struct frag_hdr *)((u8 *)ipv6h + err); fptr->frag_off = htons(offset); if (skb->next) |