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From: Eric Biggers <ebiggers@kernel.org>
To: David Howells <dhowells@redhat.com>
Cc: linux-fsdevel@vger.kernel.org,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [PATCH] vfs: move_mount: reject moving kernel internal mounts
Date: Mon, 1 Jul 2019 09:45:37 -0700	[thread overview]
Message-ID: <20190701164536.GA202431@gmail.com> (raw)
In-Reply-To: <20190629202744.12396-1-ebiggers@kernel.org>

On Sat, Jun 29, 2019 at 01:27:44PM -0700, Eric Biggers wrote:
> 
> Reproducer:
> 
>     #include <unistd.h>
> 
>     #define __NR_move_mount         429
>     #define MOVE_MOUNT_F_EMPTY_PATH 0x00000004
> 
>     int main()
>     {
>     	  int fds[2];
> 
>     	  pipe(fds);
>         syscall(__NR_move_mount, fds[0], "", -1, "/", MOVE_MOUNT_F_EMPTY_PATH);
>     }

David, I'd like to add this as a regression test somewhere.

Can you point me to the tests for the new mount syscalls?

I checked LTP, kselftests, and xfstests, but nothing to be found.

- Eric

  parent reply	other threads:[~2019-07-01 16:45 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-18 10:47 general protection fault in do_move_mount (2) syzbot
2019-06-18 14:02 ` Al Viro
2019-06-24  9:28   ` Dmitry Vyukov
2019-06-29 20:27     ` [PATCH] vfs: move_mount: reject moving kernel internal mounts Eric Biggers
2019-06-29 20:39       ` Al Viro
2019-07-01  1:08         ` Al Viro
2019-07-01 15:43           ` Eric Biggers
2019-07-01  7:38         ` David Howells
2019-07-01 11:19           ` Al Viro
2019-07-01 16:45       ` Eric Biggers [this message]
2019-07-01 18:22         ` Al Viro
2019-07-01 19:20           ` Al Viro
2019-07-02 18:22           ` Eric Biggers
2019-07-09 19:40             ` Eric Biggers
2019-07-09 20:54               ` Al Viro
2019-07-10  3:23                 ` 6 new syscalls without tests (was: [PATCH] vfs: move_mount: reject moving kernel internal mounts) Eric Biggers
2019-07-05  9:01           ` move_mount.2 David Howells
2019-06-29 20:39     ` general protection fault in do_move_mount (2) Eric Biggers
2019-07-01 14:59       ` Dmitry Vyukov
2019-07-01 15:18         ` Eric Biggers
2019-07-05 12:17           ` Dmitry Vyukov
2019-07-05 13:02           ` Dmitry Vyukov

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