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

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Message-ID: <69547f6a.050a0220.a1b6.0308.GAE@google.com>
Date: Tue, 30 Dec 2025 17:42:02 -0800
From: syzbot <syzbot+6663075ddb9be85fa6e5@...kaller.appspotmail.com>
To: akpm@...ux-foundation.org, david@...morbit.com, gfs2@...ts.linux.dev, 
	hughd@...gle.com, kent.overstreet@...ux.dev, linux-bcachefs@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, mmpgouride@...il.com, 
	muchun.song@...ux.dev, roman.gushchin@...ux.dev, 
	syzkaller-bugs@...glegroups.com, zhengqi.arch@...edance.com
Subject: Re: [syzbot] [mm?] KASAN: slab-use-after-free Read in list_lru_del

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=117f329a580000
start commit:   03d38806a902 Merge tag 'thermal-6.14-rc5' of git://git.ker..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=8de9cc84d5960254
dashboard link: https://syzkaller.appspot.com/bug?extid=6663075ddb9be85fa6e5
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=104d2864580000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: bcachefs: Fix b->written overflow

For information about bisection process see: https://goo.gl/tpsmEJ#bisection