SUNRPC: Fix a pipe_version reference leak

In gss_alloc_msg(), if the call to gss_encode_v1_msg() fails, we
want to release the reference to the pipe_version that was obtained
earlier in the function.

Fixes: 9d3a2260f0f4b (SUNRPC: Fix buffer overflow checking in...)
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 1ba1fd114912..36e431ee1c90 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -500,10 +500,12 @@ gss_alloc_msg(struct gss_auth *gss_auth,
         default:
                 err = gss_encode_v1_msg(gss_msg, service_name, gss_auth->target_name);
                 if (err)
-                        goto err_free_msg;
+                        goto err_put_pipe_version;
         };
         kref_get(&gss_auth->kref);
         return gss_msg;
+err_put_pipe_version:
+        put_pipe_version(gss_auth->net);
 err_free_msg:
         kfree(gss_msg);
 err: