linux-kernel - Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in l2cap_connect

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Message-ID: <20250307002538.GA302609@google.com>
Date: Fri, 7 Mar 2025 00:25:38 +0000
From: Eric Biggers <ebiggers@...nel.org>
To: syzbot <syzbot+e9abaabc441d3dd18735@...kaller.appspotmail.com>
Cc: johan.hedberg@...il.com, linux-bluetooth@...r.kernel.org,
	linux-kernel@...r.kernel.org, luiz.dentz@...il.com,
	marcel@...tmann.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bluetooth?] KASAN: slab-use-after-free Read in
 l2cap_connect_cfm

On Thu, Mar 06, 2025 at 04:23:21PM -0800, syzbot wrote:
> syzbot has found a reproducer for the following issue on:
> 
> HEAD commit:    f66d6acccbc0 Merge tag 'x86_urgent_for_v6.12' of git://git..
> git tree:       upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1666b2e8580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=ca2f08f822652bd0
> dashboard link: https://syzkaller.appspot.com/bug?extid=e9abaabc441d3dd18735
> compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
> 
> Unfortunately, I don't have any reproducer for this issue yet.

Maybe this will stop the spam:

#syz invalid