[PATCH 4.9 003/118] 9p/net: fix memory leak in p9_client_create

From: Greg Kroah-Hartman
Date: Fri Mar 22 2019 - 09:03:45 EST

4.9-stable review patch. If anyone has any objections, please let me know.


From: zhengbin <zhengbin13@xxxxxxxxxx>

commit bb06c388fa20ae24cfe80c52488de718a7e3a53f upstream.

If msize is less than 4096, we should close and put trans, destroy
tagpool, not just free client. This patch fixes that.

Link: http://lkml.kernel.org/m/1552464097-142659-1-git-send-email-zhengbin13@xxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 574d356b7a02 ("9p/net: put a lower bound on msize")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: zhengbin <zhengbin13@xxxxxxxxxx>
Signed-off-by: Dominique Martinet <dominique.martinet@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

net/9p/client.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -1058,7 +1058,7 @@ struct p9_client *p9_client_create(const
"Please specify a msize of at least 4k\n");
err = -EINVAL;
- goto free_client;
+ goto close_trans;

err = p9_client_version(clnt);