SUNRPC: Mask signals across the call to rpc_call_setup() in rpc_run_task

To ensure that the RPCSEC_GSS upcall is performed with the correct sigmask.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c
index eca941ce298b..bcd9abdb031c 100644
--- a/net/sunrpc/auth.c
+++ b/net/sunrpc/auth.c
@@ -385,6 +385,7 @@ rpcauth_bindcred(struct rpc_task *task)
                 .group_info = current->group_info,
         };
         struct rpc_cred *ret;
+        sigset_t oldset;
         int flags = 0;
 
         dprintk("RPC: %5u looking up %s cred\n",
@@ -392,7 +393,9 @@ rpcauth_bindcred(struct rpc_task *task)
         get_group_info(acred.group_info);
         if (task->tk_flags & RPC_TASK_ROOTCREDS)
                 flags |= RPCAUTH_LOOKUP_ROOTCREDS;
+        rpc_clnt_sigmask(task->tk_client, &oldset);
         ret = auth->au_ops->lookup_cred(auth, &acred, flags);
+        rpc_clnt_sigunmask(task->tk_client, &oldset);
         if (!IS_ERR(ret))
                 task->tk_msg.rpc_cred = ret;
         else