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authorEric Dumazet <edumazet@google.com>2018-01-10 03:45:49 -0800
committerDavid S. Miller <davem@davemloft.net>2018-01-10 16:01:25 -0500
commit862c03ee1deb7e19e0f9931682e0294ecd1fcaf9 (patch)
treee720e5abc25b35104208ba568cac3bf03b7d82d6 /net/ipv6
parent8f3d194600a5fe7d5071ea0260c7fa9317f156f6 (diff)
downloadlinux-862c03ee1deb7e19e0f9931682e0294ecd1fcaf9.tar.bz2
ipv6: fix possible mem leaks in ipv6_make_skb()
ip6_setup_cork() might return an error, while memory allocations have been done and must be rolled back. Fixes: 6422398c2ab0 ("ipv6: introduce ipv6_make_skb") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Vlad Yasevich <vyasevich@gmail.com> Reported-by: Mike Maloney <maloney@google.com> Acked-by: Mike Maloney <maloney@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6')
-rw-r--r--net/ipv6/ip6_output.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index f7dd51c42314..688ba5f7516b 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1735,9 +1735,10 @@ struct sk_buff *ip6_make_skb(struct sock *sk,
cork.base.opt = NULL;
v6_cork.opt = NULL;
err = ip6_setup_cork(sk, &cork, &v6_cork, ipc6, rt, fl6);
- if (err)
+ if (err) {
+ ip6_cork_release(&cork, &v6_cork);
return ERR_PTR(err);
-
+ }
if (ipc6->dontfrag < 0)
ipc6->dontfrag = inet6_sk(sk)->dontfrag;