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

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Message-ID: <7s7255xojjbkgxwrzmfyfa7bqhhsuzdavta6uwag67nwztvpwv@sure7v6szaoy>
Date: Thu, 10 Apr 2025 13:37:49 -0400
From: Kent Overstreet <kent.overstreet@...ux.dev>
To: syzbot <syzbot+86b24455266617775c21@...kaller.appspotmail.com>
Cc: bp@...en8.de, dave.hansen@...ux.intel.com, hpa@...or.com, 
	linux-bcachefs@...r.kernel.org, linux-kernel@...r.kernel.org, luto@...nel.org, mingo@...hat.com, 
	mmpgouride@...il.com, peterz@...radead.org, syzkaller-bugs@...glegroups.com, 
	tglx@...utronix.de, x86@...nel.org
Subject: Re: [syzbot] [bcachefs?] kernel BUG in qlist_free_all

On Thu, Apr 10, 2025 at 09:10:03AM -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=102a9d78580000
> start commit:   69b8923f5003 Merge tag 'for-linus-6.14-ofs4' of git://git...
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=57ab43c279fa614d
> dashboard link: https://syzkaller.appspot.com/bug?extid=86b24455266617775c21
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14034b24580000
> 
> If the result looks correct, please mark the issue as fixed by replying with:
> 
#syz fix: bcachefs: Fix b->written overflow