linux-kernel - Re: [syzbot] [ocfs2?] KASAN: slab-use-after-free Read in ocfs2

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Message-ID: <68ccd57e.050a0220.28a605.0019.GAE@google.com>
Date: Thu, 18 Sep 2025 21:01:02 -0700
From: syzbot <syzbot+a49010a0e8fcdeea075f@...kaller.appspotmail.com>
To: jlbec@...lplan.org, joseph.qi@...ux.alibaba.com, 
	linux-kernel@...r.kernel.org, mark@...heh.com, masahiroy@...nel.org, 
	ocfs2-devel@...ts.linux.dev, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [ocfs2?] KASAN: slab-use-after-free Read in ocfs2_fault

syzbot has bisected this issue to:

commit f79dc03fe68c79d388908182e68d702f7f1786bc
Author: Masahiro Yamada <masahiroy@...nel.org>
Date:   Tue Jun 18 10:35:21 2024 +0000

    kconfig: refactor choice value calculation

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1154ee42580000
start commit:   8b789f2b7602 Merge tag 'mm-hotfixes-stable-2025-09-17-21-1..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1354ee42580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1554ee42580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f5b21423ca3f0a96
dashboard link: https://syzkaller.appspot.com/bug?extid=a49010a0e8fcdeea075f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=179f40e2580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=109acf62580000

Reported-by: syzbot+a49010a0e8fcdeea075f@...kaller.appspotmail.com
Fixes: f79dc03fe68c ("kconfig: refactor choice value calculation")

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