Re: [syzbot] KASAN: use-after-free Read in fuse_dev_poll

From: Jens Axboe
Date: Tue Jan 24 2023 - 11:38:02 EST


On 1/24/23 9:29 AM, Miklos Szeredi wrote:
> Hi Jens,
>
> Forwarding, since it looks like io_uring is the culprit: vfs_poll() is
> called by io_poll_check_events() on an already released file.

We had a bad patch around that time, pretty sure that's what's
triggering this one too as it's not a recent kernel.

#syz invalid

--
Jens Axboe