diff mbox series

[4.4,04/36] esp6: fix memleak on error path in esp6_input

Message ID 20200609173933.542853475@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman June 9, 2020, 5:44 p.m. UTC 
From: Zhen Lei <thunder.leizhen@huawei.com>


commit 7284fdf39a912322ce97de2d30def3c6068a418c upstream.

This ought to be an omission in e6194923237 ("esp: Fix memleaks on error
paths."). The memleak on error path in esp6_input is similar to esp_input
of esp4.

Fixes: e6194923237 ("esp: Fix memleaks on error paths.")
Fixes: 3f29770723f ("ipsec: check return value of skb_to_sgvec always")
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>


---
 net/ipv6/esp6.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -426,8 +426,10 @@  static int esp6_input(struct xfrm_state
 
 	sg_init_table(sg, nfrags);
 	ret = skb_to_sgvec(skb, sg, 0, skb->len);
-	if (unlikely(ret < 0))
+	if (unlikely(ret < 0)) {
+		kfree(tmp);
 		goto out;
+	}
 
 	aead_request_set_crypt(req, sg, sg, elen + ivlen, iv);
 	aead_request_set_ad(req, assoclen);