From mboxrd@z Thu Jan 1 00:00:00 1970 From: syzbot Subject: Re: [syzbot] [nilfs?] KASAN: slab-use-after-free Read in nilfs_load_inode_block (2) Date: Thu, 27 Jul 2023 14:56:25 -0700 Message-ID: <00000000000019b5b106017f096a@google.com> References: <000000000000b4e906060113fd63@google.com> Mime-Version: 1.0 Return-path: In-Reply-To: <000000000000b4e906060113fd63-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org> List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org, konishi.ryusuke-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-nilfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, syzkaller-bugs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org syzbot has bisected this issue to: commit 28a65b49eb53e172d23567005465019658bfdb4d Author: Ryusuke Konishi Date: Thu Apr 27 01:15:26 2023 +0000 nilfs2: do not write dirty data after degenerating to read-only bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=177150e5a80000 start commit: 5f0bc0b042fc mm: suppress mm fault logging if fatal signal.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=14f150e5a80000 console output: https://syzkaller.appspot.com/x/log.txt?x=10f150e5a80000 kernel config: https://syzkaller.appspot.com/x/.config?x=5d10d93e1ae1f229 dashboard link: https://syzkaller.appspot.com/bug?extid=74db8b3087f293d3a13a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15176d81a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=132d93d9a80000 Reported-by: syzbot+74db8b3087f293d3a13a-Pl5Pbv+GP7P466ipTTIvnc23WoclnBCfAL8bYrjMMd8@public.gmane.org Fixes: 28a65b49eb53 ("nilfs2: do not write dirty data after degenerating to read-only") For information about bisection process see: https://goo.gl/tpsmEJ#bisection