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Date: Mon, 24 Oct 2022 22:24:29 -0700 From: Eric Biggers <ebiggers@...nel.org> To: Lukas Czerner <lczerner@...hat.com> Cc: hirofumi@...l.parknet.co.jp, jack@...e.cz, linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com, tytso@....edu, syzbot <syzbot+6ba92bd00d5093f7e371@...kaller.appspotmail.com>, linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org Subject: Re: [syzbot] KASAN: use-after-free Read in move_expired_inodes (2) On Tue, Oct 11, 2022 at 07:57:23AM -0700, syzbot wrote: > syzbot has bisected this issue to: > > commit cbfecb927f429a6fa613d74b998496bd71e4438a > Author: Lukas Czerner <lczerner@...hat.com> > Date: Thu Aug 25 10:06:57 2022 +0000 > > fs: record I_DIRTY_TIME even if inode already has I_DIRTY_INODE > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17e93452880000 > start commit: 493ffd6605b2 Merge tag 'ucount-rlimits-cleanups-for-v5.19'.. > git tree: upstream > final oops: https://syzkaller.appspot.com/x/report.txt?x=14193452880000 > console output: https://syzkaller.appspot.com/x/log.txt?x=10193452880000 > kernel config: https://syzkaller.appspot.com/x/.config?x=d19f5d16783f901 > dashboard link: https://syzkaller.appspot.com/bug?extid=6ba92bd00d5093f7e371 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1724028a880000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17419234880000 > > Reported-by: syzbot+6ba92bd00d5093f7e371@...kaller.appspotmail.com > Fixes: cbfecb927f42 ("fs: record I_DIRTY_TIME even if inode already has I_DIRTY_INODE") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection Lukas, are you looking into this? - Eric
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