linux-kernel - Re: [syzbot] [bcachefs?] kernel BUG in bch2_btree_node_iter

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Message-ID: <5ak2ca4mmahamjzapplnuwffuxp256dlfamn237vu5qrjq3uyf@qe62gpj5ffvb>
Date: Thu, 17 Apr 2025 15:07:14 -0400
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: syzbot <syzbot+7b8a2c442d5a4859b680@...kaller.appspotmail.com>
Cc: brauner@...nel.org, jack@...e.cz, linux-bcachefs@...r.kernel.org, 
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org, mmpgouride@...il.com, 
	syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk
Subject: Re: [syzbot] [bcachefs?] kernel BUG in bch2_btree_node_iter_init

On Thu, Apr 17, 2025 at 12:05:02PM -0700, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit 3a04334d6282d08fbdd6201e374db17d31927ba3
> Author: Alan Huang <mmpgouride@...il.com>
> Date:   Fri Mar 7 16:58:27 2025 +0000
> 
>     bcachefs: Fix b->written overflow
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=125aba3f980000
> start commit:   6537cfb395f3 Merge tag 'sound-6.14-rc4' of git://git.kerne..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=6cc40dfe827ffb85
> dashboard link: https://syzkaller.appspot.com/bug?extid=7b8a2c442d5a4859b680
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1055c7f8580000
> 
> If the result looks correct, please mark the issue as fixed by replying with:
 
#syz fix: bcachefs: Fix b->written overflow