From: David Sterba <dsterba@suse.cz>
To: syzbot <syzbot+7b1677fecb5976b0a099@syzkaller.appspotmail.com>
Cc: clm@fb.com, davem@davemloft.net, dsterba@suse.com,
johan.hedberg@gmail.com, josef@toxicpanda.com, kuba@kernel.org,
linux-bluetooth@vger.kernel.org, linux-btrfs@vger.kernel.org,
linux-kernel@vger.kernel.org, marcel@holtmann.org,
nborisov@suse.com, netdev@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: Re: KASAN: use-after-free Write in hci_conn_del
Date: Tue, 11 Aug 2020 08:50:13 +0200 [thread overview]
Message-ID: <20200811065013.GI2026@twin.jikos.cz> (raw)
In-Reply-To: <000000000000f7ec6f05ac91c11d@google.com>
On Mon, Aug 10, 2020 at 08:35:08PM -0700, syzbot wrote:
> syzbot has bisected this issue to:
>
> commit 6a3c7f5c87854e948c3c234e5f5e745c7c553722
> Author: Nikolay Borisov <nborisov@suse.com>
> 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.
prev parent reply other threads:[~2020-08-11 6:51 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-04 15:45 KASAN: use-after-free Write in hci_conn_del syzbot
2020-08-11 3:35 ` syzbot
2020-08-11 6:50 ` David Sterba [this message]
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