Messages in this thread Patch in this message | | | From | Kees Cook <> | Subject | [PATCH 2/2] debugfs: only allow root access to debugging interfaces | Date | Tue, 22 Feb 2011 10:09:58 -0800 |
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Block access to the potentially dangerous debugging interfaces in the debugfs filesystem.
Signed-off-by: Kees Cook <kees.cook@canonical.com> --- fs/debugfs/inode.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index 3cb33c3..83c61a3 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -133,7 +133,7 @@ static int debug_fill_super(struct super_block *sb, void *data, int silent) static struct tree_descr debug_files[] = {{""}}; return simple_fill_super(sb, DEBUGFS_MAGIC, debug_files, - S_IWUSR | S_IRUGO | S_IXUGO); + S_IRWXU); } static struct dentry *debug_mount(struct file_system_type *fs_type, -- 1.7.2.3
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