From: Dmitry V. Levin <ldv@altlinux.org>
Date: Tue, 16 Jun 2015 10:53:25 +0000 (+0000)
Subject: mount: update parser to match kernel behaviour
X-Git-Tag: v4.11~504
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a8630727061625e4e5013f7037e732dfb6e41f40;p=strace

mount: update parser to match kernel behaviour

* mount.c (sys_mount): Do not decode type and data strings for
MS_SHARED, MS_PRIVATE, MS_SLAVE, and MS_UNBINDABLE mount flags
that do not imply valid strings.
---

diff --git a/mount.c b/mount.c
index 2f7f0cae..d980d75c 100644
--- a/mount.c
+++ b/mount.c
@@ -48,7 +48,8 @@ SYS_FUNC(mount)
 
 		if (flags & MS_REMOUNT)
 			ignore_type = true;
-		else if (flags & (MS_BIND | MS_MOVE))
+		else if (flags & (MS_BIND | MS_MOVE | MS_SHARED
+				  | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
 			ignore_type = ignore_data = true;
 
 		printpath(tcp, tcp->u_arg[0]);