From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f207.google.com (mail-oi1-f207.google.com [209.85.167.207]) (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 EF0FD346FA8 for ; Mon, 29 Jun 2026 03:23:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782703407; cv=none; b=rVCrUKhGh2pgcEqOfvr0ejnYxj+mUj8XCP5wcX2oMnFLn8ysAPfkZ8rZJhV2oSGmx+JSRry59O6xgEkDSceRgs8zoiLizwq/AI1hR6G1ksaAlpJv9osag66dOgA5C8y3WBrbZ6oB7LP1UCOYMXfubOLKlZgHpc8ZbhiWbEMcXd4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782703407; c=relaxed/simple; bh=55WMwRXmp31W/InbnLOYwF/0KZpPO5G0+YyvN2fh5po=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Y8UtRNxPjicqXuLc2N7PRXZWrNPk5QANKdRyug/tuhE0eFCQVyF5IybsH9ZV1JZxy3Gcx1k/LfbR5tdSSLE1Mf+gGFbXlAFokj1CejqiiWCQmHxC73ln1c0PO8HahqGJlayX/WOARpnQQN3DwKvCrDaIuFFVIgNP0CUOg44GMm4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.167.207 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-oi1-f207.google.com with SMTP id 5614622812f47-489677a16bbso2251972b6e.0 for ; Sun, 28 Jun 2026 20:23:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782703405; x=1783308205; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=b277Hg6OtDoVkxWh+Xx3bSAX5STPViSw7B6zE4/evvs=; b=frE+/MuCdsHR4rY1ylBo3dcBQGwfkFYw96ZAd4S6nYu0GJqlsTUumlu6TNA7h0RWc6 pmRhVt5cL5aVdQBFPVWs5xPplW0z43tUw+mVgX6zzhX8z9FW8mHVhFW/hGjxk/OcI5tM dJZi34k5PrQAG60HUwLWwXuJtWU4SRGmwwKoRnOW1DD/0sX7t8FGlFoWMbtXAf4Jgqwt CSjZFOvJvcqK3c9aV+25DlXMorICpBHzfLHscwLlT9up08a7072xZHhjOjSTIaxBCFDQ O+CukPmu/aFkS9OhfsNlCri8v86wVb8qTbU5mXU3BYVrcwQ8j9Qq5mG1U8Z+xj+qlinO w43w== X-Forwarded-Encrypted: i=1; AFNElJ/+8a70KIYhewDUgh045qLJhzw1kXXIx5ebHBOA6j7pv816VIombm4LCLj7Cy4Ujvr8C4eTKW/GZOKZ75I=@vger.kernel.org X-Gm-Message-State: AOJu0YyGAeNOTg5peyzPFj4bZRmE3HBUIKOTBTGlFXKhVFI0fLx6PHQO MkZ7+gdr1WAnFySmPz7lxZTgISN2L9Kg864paMbLuiZV+nkgXt4rv+q3R2qPGcBsGRZu50nsiej ERFN8h2H3vohGU88pO9VgK183Umte+ICIARBy56cdz/Bop8z+2mBjWI3VrxM= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:320c:b0:495:cc7b:406e with SMTP id 5614622812f47-495cc7b6979mr1677107b6e.30.1782703405014; Sun, 28 Jun 2026 20:23:25 -0700 (PDT) Date: Sun, 28 Jun 2026 20:23:24 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a41e52c.9dc7bc9d.3393b4.0004.GAE@google.com> Subject: [syzbot] [ocfs2?] WARNING: locking bug in ocfs2_inode_lock_full_nested (3) From: syzbot To: jlbec@evilplan.org, joseph.qi@linux.alibaba.com, linux-kernel@vger.kernel.org, mark@fasheh.com, ocfs2-devel@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: ab9de95c9cf9 Merge tag 'rust-7.2-2' of git://git.kernel.or.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1666ecde580000 kernel config: https://syzkaller.appspot.com/x/.config?x=86ba763b42fa66a dashboard link: https://syzkaller.appspot.com/bug?extid=700d389b60e8ead6de94 compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/c16df342a923/disk-ab9de95c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/ddf00a828178/vmlinux-ab9de95c.xz kernel image: https://storage.googleapis.com/syzbot-assets/f468c716a7be/bzImage-ab9de95c.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+700d389b60e8ead6de94@syzkaller.appspotmail.com ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(1) WARNING: kernel/locking/lockdep.c:238 at hlock_class kernel/locking/lockdep.c:238 [inline], CPU#1: syz.4.18034/10925 WARNING: kernel/locking/lockdep.c:238 at check_wait_context kernel/locking/lockdep.c:4854 [inline], CPU#1: syz.4.18034/10925 WARNING: kernel/locking/lockdep.c:238 at __lock_acquire+0x382/0x2cf0 kernel/locking/lockdep.c:5187, CPU#1: syz.4.18034/10925 Modules linked in: CPU: 1 UID: 0 PID: 10925 Comm: syz.4.18034 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:hlock_class kernel/locking/lockdep.c:238 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4854 [inline] RIP: 0010:__lock_acquire+0x389/0x2cf0 kernel/locking/lockdep.c:5187 Code: 83 3d 7a fc a8 18 00 75 27 90 e8 e2 b3 12 03 85 c0 74 1c 83 3d eb 1c 91 0e 00 75 13 48 8d 3d ce 77 94 0e 48 c7 c6 d5 21 10 8e <67> 48 0f b9 3a 90 31 c0 0f b6 98 c4 00 00 00 41 8b 45 20 25 ff 1f RSP: 0018:ffffc90010467448 EFLAGS: 00010046 RAX: 0000000000000001 RBX: 0000000000040000 RCX: 0000000000080000 RDX: ffffc9000eebe000 RSI: ffffffff8e1021d5 RDI: ffffffff903660f0 RBP: 0000000000000001 R08: ffffffff90330603 R09: 1ffffffff20660c0 R10: dffffc0000000000 R11: fffffbfff20660c1 R12: 000000000000140e R13: ffff88802ce50ba0 R14: ffff88802ce50000 R15: ffff88802ce50ba0 FS: 00007fc45f82b6c0(0000) GS:ffff888125327000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f917adac000 CR3: 00000000686b3000 CR4: 0000000000350ef0 Call Trace: lock_acquire+0x106/0x350 kernel/locking/lockdep.c:5868 __raw_spin_lock include/linux/spinlock_api_smp.h:158 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:158 spin_lock include/linux/spinlock.h:342 [inline] ocfs2_is_hard_readonly fs/ocfs2/ocfs2.h:663 [inline] ocfs2_inode_lock_full_nested+0x12f/0x1b30 fs/ocfs2/dlmglue.c:2446 ocfs2_inode_lock_tracker+0x1cf/0x710 fs/ocfs2/dlmglue.c:2691 ocfs2_permission+0xc6/0x1e0 fs/ocfs2/file.c:1361 do_inode_permission fs/namei.c:583 [inline] inode_permission+0x3de/0x5f0 fs/namei.c:653 lookup_inode_permission_may_exec fs/namei.c:693 [inline] may_lookup fs/namei.c:1961 [inline] link_path_walk+0xaa6/0x1910 fs/namei.c:2604 path_parentat fs/namei.c:2860 [inline] __filename_parentat+0x287/0x6f0 fs/namei.c:2884 filename_parentat fs/namei.c:2902 [inline] filename_unlinkat+0x104/0x610 fs/namei.c:5550 __do_sys_unlinkat fs/namei.c:5610 [inline] __se_sys_unlinkat+0x83/0x1a0 fs/namei.c:5602 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc45e99ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc45f82b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 00007fc45ec15fa0 RCX: 00007fc45e99ce59 RDX: 0000000000000000 RSI: 00002000000001c0 RDI: ffffffffffffff9c RBP: 00007fc45ea32e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc45ec16038 R14: 00007fc45ec15fa0 R15: 00007ffd971d9818 ---------------- Code disassembly (best guess): 0: 83 3d 7a fc a8 18 00 cmpl $0x0,0x18a8fc7a(%rip) # 0x18a8fc81 7: 75 27 jne 0x30 9: 90 nop a: e8 e2 b3 12 03 call 0x312b3f1 f: 85 c0 test %eax,%eax 11: 74 1c je 0x2f 13: 83 3d eb 1c 91 0e 00 cmpl $0x0,0xe911ceb(%rip) # 0xe911d05 1a: 75 13 jne 0x2f 1c: 48 8d 3d ce 77 94 0e lea 0xe9477ce(%rip),%rdi # 0xe9477f1 23: 48 c7 c6 d5 21 10 8e mov $0xffffffff8e1021d5,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 90 nop 30: 31 c0 xor %eax,%eax 32: 0f b6 98 c4 00 00 00 movzbl 0xc4(%rax),%ebx 39: 41 8b 45 20 mov 0x20(%r13),%eax 3d: 25 .byte 0x25 3e: ff 1f lcall *(%rdi) --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup