[PATCH 01/24] vfs: Undo an overly zealous MS_RDONLY -> SB_RDONLY conversion [ver #7]

David Howells dhowells at redhat.com
Thu Apr 19 13:31:08 UTC 2018

In do_mount() when the MS_* flags are being converted to MNT_* flags,
MS_RDONLY got accidentally convered to SB_RDONLY.

Undo this change.

Fixes: e462ec50cb5f ("VFS: Differentiate mount flags (MS_*) from internal superblock flags")
Signed-off-by: David Howells <dhowells at redhat.com>

 fs/namespace.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index e398f32d7541..6f720ebca133 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2814,7 +2814,7 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 		mnt_flags |= MNT_NODIRATIME;
 	if (flags & MS_STRICTATIME)
 		mnt_flags &= ~(MNT_RELATIME | MNT_NOATIME);
-	if (flags & SB_RDONLY)
+	if (flags & MS_RDONLY)
 		mnt_flags |= MNT_READONLY;
 	/* The default atime for remount is preservation */

To unsubscribe from this list: send the line "unsubscribe linux-security-module" in
the body of a message to majordomo at vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

More information about the Linux-security-module-archive mailing list