This is a note to let you know that I've just added the patch titled
ip_gre: fix potential memory leak in erspan_rcv
to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: ip_gre-fix-potential-memory-leak-in-erspan_rcv.patch and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.
From foo@baz Thu Mar 22 14:26:48 CET 2018
From: Haishuang Yan yanhaishuang@cmss.chinamobile.com Date: Wed, 20 Dec 2017 10:07:00 +0800 Subject: ip_gre: fix potential memory leak in erspan_rcv
From: Haishuang Yan yanhaishuang@cmss.chinamobile.com
[ Upstream commit 50670b6ee9bc4ae8f9ce3112b437987adf273245 ]
If md is NULL, tun_dst must be freed, otherwise it will cause memory leak.
Fixes: 1a66a836da6 ("gre: add collect_md mode to ERSPAN tunnel") Cc: William Tu u9012063@gmail.com Signed-off-by: Haishuang Yan yanhaishuang@cmss.chinamobile.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ipv4/ip_gre.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -303,8 +303,10 @@ static int erspan_rcv(struct sk_buff *sk return PACKET_REJECT;
md = ip_tunnel_info_opts(&tun_dst->u.tun_info); - if (!md) + if (!md) { + dst_release((struct dst_entry *)tun_dst); return PACKET_REJECT; + }
md->index = index; info = &tun_dst->u.tun_info;
Patches currently in stable-queue which might be from yanhaishuang@cmss.chinamobile.com are
queue-4.14/ip_gre-fix-error-path-when-erspan_rcv-failed.patch queue-4.14/ip_gre-fix-potential-memory-leak-in-erspan_rcv.patch