From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1BCB63527C for ; Sat, 16 Dec 2023 23:19:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-7b7ac3e24f0so179571739f.2 for ; Sat, 16 Dec 2023 15:19:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1702768745; x=1703373545; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=c52hql8OhpFGWUCpBSY9HFLOe21/vbBOPBZxmXhJo0Q=; b=YxWoSm9Ox/ebzXCF1GJCm6BsZsHmrKluMxUnidJkON8WqkXG5KAzqD/XuIluqR4Biw h7z1QFBCIeuZQhvWS2PnI7McKIdADFJ54t8Tpm+EmORyZOG27Kltdde8Vw6GB3twrF8p nVEGbx6MFKGdzoBrI5iqECJh1SqrXjcH7C8F57TVUc3L9OJxJ/rEVIEKDuGy+DcU9qst Z4HG9RRMRKV4AkH3iNx8WlZpzTeBpce2kcEGylrl50kS+I95LmDRAeGr2ZPWCn0Ym5uw fnDQdyk65fXIr0CWHoM/q45FK31HslWlTzGjYkXsOhi9FnBuIX1yQQAORKNiNS7mqm+3 KwtA== X-Gm-Message-State: AOJu0Yy4eHxxExoaG3TtBDN8dUfo+DvJ5VFRtZMrHJNhioRSS0Hd1DYD /1ps2xsCLErwyWW9hyIj1azof8XM9kVePA4qsMHhNi/KTjJZ X-Google-Smtp-Source: AGHT+IHDVyY7Y+OhPQm2R8skr3NKrKEStHWWVq31UhLGAIELz046qwbxaseC4Yb7zNKtGrn8LA/5/EjYapDqtVDeSayU8Rg3TLKm Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a5d:8544:0:b0:7b7:446a:e7bc with SMTP id b4-20020a5d8544000000b007b7446ae7bcmr317095ios.4.1702768745338; Sat, 16 Dec 2023 15:19:05 -0800 (PST) Date: Sat, 16 Dec 2023 15:19:05 -0800 In-Reply-To: <000000000000863a7305e722aeeb@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003362ba060ca8beac@google.com> Subject: Re: [syzbot] [reiserfs?] [squashfs?] BUG: Dentry still in use in unmount From: syzbot To: amir73il@gmail.com, chao@kernel.org, jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, phillip@squashfs.org.uk, reiserfs-devel@vger.kernel.org, squashfs-devel@lists.sourceforge.net, syzkaller-bugs@googlegroups.com, terrelln@fb.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit c63e56a4a6523fcb1358e1878607d77a40b534bb Author: Amir Goldstein Date: Wed Aug 16 09:42:18 2023 +0000 ovl: do not open/llseek lower file with upper sb_writers held bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13723c01e80000 start commit: 3bd7d7488169 Merge tag 'io_uring-6.7-2023-12-15' of git://.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=10f23c01e80000 console output: https://syzkaller.appspot.com/x/log.txt?x=17723c01e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=53ec3da1d259132f dashboard link: https://syzkaller.appspot.com/bug?extid=8608bb4553edb8c78f41 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17b8b6e1e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16ec773ae80000 Reported-by: syzbot+8608bb4553edb8c78f41@syzkaller.appspotmail.com Fixes: c63e56a4a652 ("ovl: do not open/llseek lower file with upper sb_writers held") For information about bisection process see: https://goo.gl/tpsmEJ#bisection