Patch "dccp: fix a memleak that dccp_ipv4 doesn't put reqsk properly" has been added to the 4.4-stable tree

Patch "dccp: fix a memleak that dccp_ipv4 doesn't put reqsk properly" has been added to the 4.4-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    dccp: fix a memleak that dccp_ipv4 doesn't put reqsk properly

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     dccp-fix-a-memleak-that-dccp_ipv4-doesn-t-put-reqsk-properly.patch
and it can be found in the queue-4.4 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 Tue Aug  8 16:51:58 PDT 2017
From: Xin Long <lucien.xin@gmail.com>
Date: Wed, 26 Jul 2017 14:19:46 +0800
Subject: dccp: fix a memleak that dccp_ipv4 doesn't put reqsk properly

From: Xin Long <lucien.xin@gmail.com>


[ Upstream commit b7953d3c0e30a5fc944f6b7bd0bcceb0794bcd85 ]

The patch "dccp: fix a memleak that dccp_ipv6 doesn't put reqsk
properly" fixed reqsk refcnt leak for dccp_ipv6. The same issue
exists on dccp_ipv4.

This patch is to fix it for dccp_ipv4.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/dccp/ipv4.c |    1 +
 1 file changed, 1 insertion(+)

--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -635,6 +635,7 @@ int dccp_v4_conn_request(struct sock *sk
 		goto drop_and_free;
 
 	inet_csk_reqsk_queue_hash_add(sk, req, DCCP_TIMEOUT_INIT);
+	reqsk_put(req);
 	return 0;
 
 drop_and_free:


Patches currently in stable-queue which might be from lucien.xin@gmail.com are

queue-4.4/sctp-fix-the-check-for-_sctp_walk_params-and-_sctp_walk_errors.patch
queue-4.4/dccp-fix-a-memleak-that-dccp_ipv6-doesn-t-put-reqsk-properly.patch
queue-4.4/dccp-fix-a-memleak-that-dccp_ipv4-doesn-t-put-reqsk-properly.patch
queue-4.4/dccp-fix-a-memleak-for-dccp_feat_init-err-process.patch