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debugfs: more tightly restrict default mount mode

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Since the debugfs is mostly only used by root, make the default mount
mode 0700. Most system owners do not need a more permissive value,
but they can choose to weaken the restrictions via their fstab.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kees Cook 2012-08-27 13:32:15 -07:00 • committed by Greg Kroah-Hartman
parent 9db48aaf18
commit 82aceae4f0
2 changed files with 3 additions and 3 deletions
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2
fs/debugfs/inode.c
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@ -28,7 +28,7 @@
#include <linux/magic.h>
#include <linux/slab.h>
#define DEBUGFS_DEFAULT_MODE 0755
#define DEBUGFS_DEFAULT_MODE 0700
static struct vfsmount *debugfs_mount;
static int debugfs_mount_count;