ntfs: (device loop0): ntfs_read_inode_mount(): Failed. Marking inode as bad. ntfs: (device loop0): ntfs_fill_super(): Failed to load essential metadata. ntfs: (device loop0): ntfs_read_inode_mount(): Device read failed. INFO: task syz-executor326:8020 blocked for more than 140 seconds. Not tainted 4.14.302-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor326 D28912 8020 7989 0x00000004 Call Trace: context_switch kernel/sched/core.c:2811 [inline] __schedule+0x88b/0x1de0 kernel/sched/core.c:3387 schedule+0x8d/0x1b0 kernel/sched/core.c:3431 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3489 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x669/0x1310 kernel/locking/mutex.c:893 __blkdev_get+0x191/0x1090 fs/block_dev.c:1455 blkdev_get+0x88/0x890 fs/block_dev.c:1611 blkdev_open+0x1cc/0x250 fs/block_dev.c:1772 do_dentry_open+0x44b/0xec0 fs/open.c:777 vfs_open+0x105/0x220 fs/open.c:888 do_last fs/namei.c:3428 [inline] path_openat+0x628/0x2970 fs/namei.c:3571 do_filp_open+0x179/0x3c0 fs/namei.c:3605 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7f7fce3fd277 RSP: 002b:00007fffd62c3e60 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7fce3fd277 RDX: 0000000000000002 RSI: 00007fffd62c3ef0 RDI: 00000000ffffff9c RBP: 00007fffd62c3ef0 R08: 000000000001f1c1 R09: 000000000001f1ba R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 0000555556b262c0 R14: 431bde82d7b634db R15: 00007fffd62c3f30 Showing all locks held in the system: 1 lock held by khungtaskd/1532: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548 1 lock held by syz-executor326/8020: #0: (&bdev->bd_mutex){+.+.}, at: [] __blkdev_get+0x191/0x1090 fs/block_dev.c:1455 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1532 Comm: khungtaskd Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x13a/0x180 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline] watchdog+0x5b9/0xb40 kernel/hung_task.c:274 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8018 Comm: systemd-udevd Not tainted 4.14.302-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 task: ffff8880b2f62280 task.stack: ffff888095318000 RIP: 0010:__sanitizer_cov_trace_pc+0x23/0x50 kernel/kcov.c:68 RSP: 0018:ffff88809531f968 EFLAGS: 00000246 RAX: ffff8880b2f62280 RBX: 0000000000000029 RCX: 000000000000002a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88809531fa78 RBP: ffff88808df7aca8 R08: 0000000000000000 R09: 0000000000020011 R10: ffff8880b2f62b30 R11: ffff8880b2f62280 R12: ffff88808df7ac80 R13: dffffc0000000000 R14: ffff88808df7adf0 R15: 0000000000000000 FS: 00007fad351d08c0(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe4ac427000 CR3: 000000009b4b6000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: radix_tree_next_chunk+0x24d/0x8c0 lib/radix-tree.c:1766 find_get_entries+0x4c4/0x870 mm/filemap.c:1560 pagevec_lookup_entries+0x35/0x70 mm/swap.c:933 truncate_inode_pages_range+0x1ac/0x13e0 mm/truncate.c:292 kill_bdev fs/block_dev.c:98 [inline] __blkdev_put+0x24c/0x800 fs/block_dev.c:1797 blkdev_close+0x86/0xb0 fs/block_dev.c:1875 __fput+0x25f/0x7a0 fs/file_table.c:210 task_work_run+0x11f/0x190 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:191 [inline] exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline] syscall_return_slowpath arch/x86/entry/common.c:270 [inline] do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7fad34316270 RSP: 002b:00007ffd63628408 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007fad34316270 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007 RBP: 00007fad351d0710 R08: 000055b952e32f00 R09: 000055b952e32c00 R10: 00007fad351d08c0 R11: 0000000000000246 R12: 0000000000000000 R13: 000055b952e32070 R14: 0000000000000003 R15: 000000000000000e Code: 90 90 90 90 90 90 90 90 65 48 8b 04 25 c0 7f 02 00 48 85 c0 74 1a 65 8b 15 fb 24 ad 7e 81 e2 00 01 1f 00 75 0b 8b 90 58 13 00 00 <83> fa 01 74 01 c3 48 8b 34 24 48 8b 88 60 13 00 00 8b 80 5c 13