TOMOYO: Don't add / for allow_unmount permission check.
Tetsuo Handa [Sat, 2 Apr 2011 15:11:50 +0000 (00:11 +0900)]
"mount --bind /path/to/file1 /path/to/file2" is legal. Therefore,
"umount /path/to/file2" is also legal. Do not automatically append trailing '/'
if pathname to be unmounted does not end with '/'.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>

security/tomoyo/file.c

index cb09f1f..d64e8ec 100644 (file)
@@ -1011,7 +1011,6 @@ int tomoyo_path_perm(const u8 operation, struct path *path)
                break;
        case TOMOYO_TYPE_RMDIR:
        case TOMOYO_TYPE_CHROOT:
-       case TOMOYO_TYPE_UMOUNT:
                tomoyo_add_slash(&buf);
                break;
        }