From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f78.google.com (mail-io1-f78.google.com [209.85.166.78]) (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 C94971D5CFE for ; Tue, 7 Oct 2025 16:34:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.78 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759854868; cv=none; b=DBRnrbMGlZSJuDqGNrs2byOdS+8t7jKoFTpHGZTIKNP0iL8P836/Z+GIlsxhu7n6N0GkwKGDV/mom0Y8qdteKHGGpvCdjM66yuqAQpBZi9LtgcJoQgkbTjmGZSgtgCTW0Q4hlsaVh1Mm3U7jo7nBa/t63+O4jOnNiyUVOTbpUPw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759854868; c=relaxed/simple; bh=vVyO9fjJFoREQvEQNASLa0vvP3CB1EKRO+0FPlwuukI=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=r0PLXrT1I6lh/V9UHhkW/rbgCRPBHWl4ieBaxnUZegZfds8plQ7oKt9pBM/XqwuomOjOzYI9Ln8hmolvIww1xDo+tybnBL9qpjRPZH3AOcklMyDt08eST+qEohjY6ISIKJo5GsHUYg1265IYcmaO9H6RGdozLsrJ1g0nGAsG730= 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=209.85.166.78 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-f78.google.com with SMTP id ca18e2360f4ac-91b3cc5aa6aso1512231439f.3 for ; Tue, 07 Oct 2025 09:34:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1759854866; x=1760459666; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=BxCneZz9zHSpXS0Thh06erzTU2YOStwxJfkdZ/ivVt0=; b=iB4xsOCtOqvZHaXXbhlk/SFSk8jPh9zAWABTXUCa+MGvzkFdKWsIThC5/plxJC+ET3 5hTqM4cTddNARmskZfikRon9fvmy/o9aqTP0s/T9CTOWYvBZlf/Tl1m7NW3rJPPxoyU9 f11xHjLFu0mfyX04FZbN+8h7Ffoaz7KYRQRpcjAnaJdy2/Ll0Kfsaql32E1VUfB8HpnY 6YMnAA3bwUsX2W2R5ZGsjnc1qa9silFEHbzMPJEE1F37O2k7Ss9G+RgsyIAH5/ltheKr MvfSuk2NN4XCgDlHRWzcUmHfamgcZ8MVNslNbcJLhQFNmxIFOAknimAVDLGDGKuXhY+z PZ1w== X-Forwarded-Encrypted: i=1; AJvYcCVrIDZ+EVnElthGUW6HpHc/Q5hq+0IES1ZoPI87shXHJNqR7oHqfoCXdUT3n0uvWW7QSqx4H/DjhpmPSgw=@vger.kernel.org X-Gm-Message-State: AOJu0YyTTT+e8hQ5RejUqsoYGAbSjRjthIE79DTstNxWUR1VPCsz7r3K TyzV+Ws7CwpCoFLgleUoeyxFyh4A3iviIlqaYSsQ8285J1VW0NWUubG0gRiggl7edUo38Z8rE8E QOmRD6AVLiRnN2EISnXjIEvJTnBd/VJWM3hYb8aG6xHd9DaugQtyHmlHGHq4= X-Google-Smtp-Source: AGHT+IECmnNG93Sg16BBWk0/HcXV7w3PBbLJ0VUE368vFL/PKWCVTqRMrjEhDRAt6hyBPj5eOWJhXiZcJ2sR9RQPwj/MEDEhV4ib Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:2dcf:b0:93b:bb32:a2a5 with SMTP id ca18e2360f4ac-93bbb32a327mr1064496639f.17.1759854865944; Tue, 07 Oct 2025 09:34:25 -0700 (PDT) Date: Tue, 07 Oct 2025 09:34:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68e54111.a00a0220.298cc0.047e.GAE@google.com> Subject: [syzbot] [f2fs?] BUG: sleeping function called from invalid context in f2fs_drop_inode From: syzbot To: chao@kernel.org, jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: ba9dac987319 Merge tag 'libnvdimm-for-6.18' of git://git.k.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=122ab92f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=c1486b135ff0ff9b dashboard link: https://syzkaller.appspot.com/bug?extid=635fba516c2c7858f799 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-ba9dac98.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d1fa0e7fa86d/vmlinux-ba9dac98.xz kernel image: https://storage.googleapis.com/syzbot-assets/fbfd63ebd788/bzImage-ba9dac98.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+635fba516c2c7858f799@syzkaller.appspotmail.com BUG: sleeping function called from invalid context at fs/inode.c:1928 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 5328, name: syz.0.0 preempt_count: 1, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by syz.0.0/5328: #0: ffff88801fcd9b80 (&sb->s_type->i_lock_key#35){+.+.}-{3:3}, at: spin_lock include/linux/spinlock.h:351 [inline] #0: ffff88801fcd9b80 (&sb->s_type->i_lock_key#35){+.+.}-{3:3}, at: f2fs_drop_inode+0x67e/0x950 fs/f2fs/super.c:1822 Preemption disabled at: [<0000000000000000>] 0x0 CPU: 0 UID: 0 PID: 5328 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 __might_resched+0x495/0x610 kernel/sched/core.c:8925 iput+0x2b/0xc50 fs/inode.c:1928 f2fs_drop_inode+0x686/0x950 fs/f2fs/super.c:1823 iput_final fs/inode.c:1884 [inline] iput+0x6d9/0xc50 fs/inode.c:1966 __dentry_kill+0x209/0x660 fs/dcache.c:669 dput+0x19f/0x2b0 fs/dcache.c:911 __fput+0x68e/0xa70 fs/file_table.c:476 task_work_run+0x1d1/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xe9/0x130 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb96098eec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd5e7bbf08 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007fb960be7da0 RCX: 00007fb96098eec9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007fb960be7da0 R08: 0000000000018f14 R09: 000000125e7bc1ff R10: 0000000000de6eb8 R11: 0000000000000246 R12: 0000000000015259 R13: 00007fb960be6090 R14: ffffffffffffffff R15: 00007ffd5e7bc020 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5328 at fs/inode.c:1933 iput+0x38c/0xc50 fs/inode.c:1933 Modules linked in: CPU: 0 UID: 0 PID: 5328 Comm: syz.0.0 Tainted: G W syzkaller #0 PREEMPT(full) Tainted: [W]=WARN Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:iput+0x38c/0xc50 fs/inode.c:1933 Code: 80 3d a0 88 49 0d 01 0f 85 b2 00 00 00 e8 4c 82 80 ff 4c 89 f7 be 10 00 00 00 e8 af 84 06 00 e9 2c fd ff ff e8 35 82 80 ff 90 <0f> 0b 90 e9 70 fd ff ff e8 27 82 80 ff 90 0f 0b 90 e9 d7 fe ff ff RSP: 0018:ffffc9000d47fbb0 EFLAGS: 00010293 RAX: ffffffff823e919b RBX: 0000000000000001 RCX: ffff888000394900 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff88801fcd9bb8 R08: ffffffff9297b047 R09: 1ffffffff252f608 R10: dffffc0000000000 R11: fffffbfff252f609 R12: ffff88801fcd9ce8 R13: dffffc0000000000 R14: ffff88801fcd9ae8 R15: 1ffffffff1f3c766 FS: 00005555645a1500(0000) GS:ffff88808d30c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb960bd75f0 CR3: 00000000127cb000 CR4: 0000000000352ef0 Call Trace: f2fs_drop_inode+0x686/0x950 fs/f2fs/super.c:1823 iput_final fs/inode.c:1884 [inline] iput+0x6d9/0xc50 fs/inode.c:1966 __dentry_kill+0x209/0x660 fs/dcache.c:669 dput+0x19f/0x2b0 fs/dcache.c:911 __fput+0x68e/0xa70 fs/file_table.c:476 task_work_run+0x1d1/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xe9/0x130 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb96098eec9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd5e7bbf08 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007fb960be7da0 RCX: 00007fb96098eec9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007fb960be7da0 R08: 0000000000018f14 R09: 000000125e7bc1ff R10: 0000000000de6eb8 R11: 0000000000000246 R12: 0000000000015259 R13: 00007fb960be6090 R14: ffffffffffffffff R15: 00007ffd5e7bc020 --- 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