Re: KASAN: use-after-free Write in hci_conn_del

On Mon, Aug 10, 2020 at 08:35:08PM -0700, syzbot wrote:

syzbot has bisected this issue to:

commit 6a3c7f5c87854e948c3c234e5f5e745c7c553722
Author: Nikolay Borisov [off-list ref]
Date:   Thu May 28 08:05:13 2020 +0000

    btrfs: don't balance btree inode pages from buffered write path

This does not make sense wrt use-after-free in HCI, which is completely
unrelated subsystem.

The patch removes a call to function doing some potentially heavy work,
so this likely affects timing and making the bisection unreliable.