4.4-stable review patch. If anyone has any objections, please let me know.
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From: Eric Dumazet <edumazet@xxxxxxxxxx>
[ Upstream commit 862c03ee1deb7e19e0f9931682e0294ecd1fcaf9 ]
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@xxxxxxxxxx>
Cc: Vlad Yasevich <vyasevich@xxxxxxxxx>
Reported-by: Mike Maloney <maloney@xxxxxxxxxx>
Acked-by: Mike Maloney <maloney@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/ipv6/ip6_output.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1785,8 +1785,10 @@ struct sk_buff *ip6_make_skb(struct sock
cork.base.opt = NULL;
v6_cork.opt = NULL;
err = ip6_setup_cork(sk, &cork, &v6_cork, hlimit, tclass, opt, rt, fl6);
- if (err)
+ if (err) {
+ ip6_cork_release(&cork, &v6_cork);
return ERR_PTR(err);
+ }
if (dontfrag < 0)
dontfrag = inet6_sk(sk)->dontfrag;