sunrpc: Properly encode kuids and kgids in RPC_AUTH_UNIX credentials

When writing kuids onto the wire first map them into the initial user namespace. When writing kgids onto the wire first map them into the initial user namespace. Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
yi-yang · Feb 13, 2013 · a570abb · a570abb
1 parent 9e469e3
commit a570abb
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
@@ -157,11 +157,11 @@ unx_marshal(struct rpc_task *task, __be32 *p)
 	 */
 	p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen);
 
-	*p++ = htonl((u32) cred->uc_uid);
-	*p++ = htonl((u32) cred->uc_gid);
+	*p++ = htonl((u32) from_kuid(&init_user_ns, cred->uc_uid));
+	*p++ = htonl((u32) from_kgid(&init_user_ns, cred->uc_gid));
 	hold = p++;
 	for (i = 0; i < 16 && gid_valid(cred->uc_gids[i]); i++)
-		*p++ = htonl((u32) cred->uc_gids[i]);
+		*p++ = htonl((u32) from_kgid(&init_user_ns, cred->uc_gids[i]));
 	*hold = htonl(p - hold - 1);		/* gid array length */
 	*base = htonl((p - base - 1) << 2);	/* cred length */