From: Karel Zak <kzak@redhat.com>
Date: Fri, 21 Sep 2012 15:15:07 +0000 (+0200)
Subject: libmount: user-mounted loopback fs cannot be unmounted by user
X-Git-Tag: v2.23-rc1~680
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9af2433419bd6f484f6c6d7c3ab6d679d769dae7;p=thirdparty%2Futil-linux.git

libmount: user-mounted loopback fs cannot be unmounted by user

Addresses: https://bugs.archlinux.org/task/31624
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/libmount/src/context_umount.c b/libmount/src/context_umount.c
index 36ed435cf5..17ec1f0a48 100644
--- a/libmount/src/context_umount.c
+++ b/libmount/src/context_umount.c
@@ -150,7 +150,7 @@ static int is_associated_fs(const char *devname, struct libmnt_fs *fs)
 	int flags = 0;
 
 	/* check if it begins with /dev/loop */
-	if (strncmp(devname, _PATH_DEV_LOOP, sizeof(_PATH_DEV_LOOP)))
+	if (strncmp(devname, _PATH_DEV_LOOP, sizeof(_PATH_DEV_LOOP) - 1))
 		return 0;
 
 	src = mnt_fs_get_srcpath(fs);