Re: KASAN: use-after-free Read in mnt_warn_timestamp_expiry

[Eric Biggers]

On Wed, Oct 16, 2019 at 06:42:11PM -0700, syzbot wrote:
> ==================================================================
> BUG: KASAN: use-after-free in mnt_warn_timestamp_expiry+0x4a/0x250
> fs/namespace.c:2471
> Read of size 8 at addr ffff888099937328 by task syz-executor.1/18510
> 

Looks like a duplicate of this:

#syz dup: KASAN: use-after-free Read in do_mount

See the existing thread and proposed fix here:
https://lkml.kernel.org/linux-fsdevel/000000000000805e5505945a234b@xxxxxxxxxx/T/#u

- Eric