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From: syzbot <syzbot+af14efe17dfa46173239@syzkaller.appspotmail.com>
To: activprithvi@gmail.com, akpm@linux-foundation.org,
	 david.hunter.linux@gmail.com, dmantipov@yandex.ru,
	heming.zhao@suse.com,  jlbec@evilplan.org,
	joseph.qi@linux.alibaba.com, khalid@kernel.org,
	 linux-kernel-mentees@lists.linux.dev,
	linux-kernel@vger.kernel.org,  mark@fasheh.com,
	ocfs2-devel@lists.linux.dev, skhan@linuxfoundation.org,
	 stable@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [ocfs2?] KASAN: slab-use-after-free Read in ocfs2_reserve_suballoc_bits
Date: Thu, 15 Jan 2026 22:01:02 -0800	[thread overview]
Message-ID: <6969d41e.050a0220.58bed.003e.GAE@google.com> (raw)
In-Reply-To: <67117fd9.050a0220.10f4f4.0004.GAE@google.com>

syzbot suspects this issue was fixed by commit:

commit e1c70505ee8158c1108340d9cd67182ade93af4a
Author: Dmitry Antipov <dmantipov@yandex.ru>
Date:   Thu Oct 30 15:30:02 2025 +0000

    ocfs2: add extra consistency checks for chain allocator dinodes

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=140a0852580000
start commit:   36c254515dc6 Merge tag 'powerpc-6.12-4' of git://git.kerne..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=7a3fccdd0bb995
dashboard link: https://syzkaller.appspot.com/bug?extid=af14efe17dfa46173239
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13444727980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11861440580000

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

#syz fix: ocfs2: add extra consistency checks for chain allocator dinodes

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

      parent reply	other threads:[~2026-01-16  6:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-17 21:21 [syzbot] [ocfs2?] KASAN: slab-use-after-free Read in ocfs2_reserve_suballoc_bits syzbot
2025-12-20  8:44 ` Syzbot test for ocfs2: Add check for total number of chains in chain list Prithvi Tambewagh
2025-12-20  9:17   ` [syzbot] [ocfs2?] KASAN: slab-use-after-free Read in ocfs2_reserve_suballoc_bits syzbot
2026-01-16  6:01 ` syzbot [this message]

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