[[0;32m OK [0m] Reached target Login Prompts.
[[0;32m OK [0m] Reached target Multi-User System.
[[0;32m OK [0m] Reached target Graphical Interface.
Starting Update UTMP about System Runlevel Changes...
[[0;32m OK [0m] Started Update UTMP about System Runlevel Changes.
Debian GNU/Linux 9 syzkaller ttyS0
Warning: Permanently added '10.128.1.32' (ECDSA) to the list of known hosts.
executing program
executing program
syzkaller login: [ 490.578912] ntfs: (device loop0): ntfs_read_inode_mount(): Device read failed.
[ 490.586300] ntfs: (device loop0): ntfs_read_inode_mount(): Failed. Marking inode as bad.
[ 490.594742] ntfs: (device loop0): ntfs_fill_super(): Failed to load essential metadata.
executing program
[ 490.669976] ntfs: (device loop0): ntfs_read_inode_mount(): Device read failed.
[ 490.677462] ntfs: (device loop0): ntfs_read_inode_mount(): Failed. Marking inode as bad.
[ 490.685983] ntfs: (device loop0): ntfs_fill_super(): Failed to load essential metadata.
executing program
[ 490.760545] ntfs: (device loop0): ntfs_read_inode_mount(): Device read failed.
[ 490.768036] ntfs: (device loop0): ntfs_read_inode_mount(): Failed. Marking inode as bad.
[ 490.780483] ntfs: (device loop0): ntfs_fill_super(): Failed to load essential metadata.
executing program
executing program
[ 490.850355] ntfs: (device loop0): ntfs_read_inode_mount(): Device read failed.
[ 717.551647] INFO: task syz-executor925:8128 blocked for more than 140 seconds.
[ 717.559101] Not tainted 4.19.211-syzkaller #0
[ 717.565764] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 717.574343] syz-executor925 D28648 8128 8091 0x00000004
[ 717.579979] Call Trace:
[ 717.583474] __schedule+0x887/0x2040
[ 717.587202] ? io_schedule_timeout+0x140/0x140
[ 717.592684] ? lock_downgrade+0x720/0x720
[ 717.596845] ? __mutex_lock+0x418/0x1190
[ 717.600906] schedule+0x8d/0x1b0
[ 717.605510] schedule_preempt_disabled+0xf/0x20
[ 717.610181] __mutex_lock+0x5f0/0x1190
[ 717.615008] ? wait_for_completion_io+0x10/0x10
[ 717.619682] ? __blkdev_get+0x1d0/0x1480
[ 717.624608] ? mutex_trylock+0x1a0/0x1a0
[ 717.628680] ? lock_downgrade+0x720/0x720
[ 717.633719] ? lock_acquire+0x170/0x3c0
[ 717.637695] ? get_gendisk+0x83/0x380
[ 717.642348] ? disk_block_events+0x1d/0x130
[ 717.646675] __blkdev_get+0x1d0/0x1480
[ 717.650566] ? bdev_disk_changed+0x1b0/0x1b0
[ 717.656384] ? mark_held_locks+0xf0/0xf0
[ 717.660466] ? mark_held_locks+0xf0/0xf0
[ 717.665541] blkdev_get+0xb0/0x940
[ 717.669087] ? bd_acquire+0x245/0x440
[ 717.673808] ? __blkdev_get+0x1480/0x1480
[ 717.677959] ? lock_downgrade+0x720/0x720
[ 717.684133] ? lock_acquire+0x170/0x3c0
[ 717.688112] ? bd_acquire+0x21/0x440
[ 717.692685] ? do_raw_spin_unlock+0x171/0x230
[ 717.697186] blkdev_open+0x202/0x290
[ 717.700899] do_dentry_open+0x4aa/0x1160
[ 717.706218] ? blkdev_get_by_dev+0x70/0x70
[ 717.710460] ? chown_common+0x550/0x550
[ 717.715455] ? inode_permission+0x3d/0x140
[ 717.719692] path_openat+0x793/0x2df0
[ 717.724348] ? path_lookupat+0x8d0/0x8d0
[ 717.728415] ? mark_held_locks+0xf0/0xf0
[ 717.733354] do_filp_open+0x18c/0x3f0
[ 717.737150] ? may_open_dev+0xf0/0xf0
[ 717.740954] ? lock_downgrade+0x720/0x720
[ 717.746274] ? lock_acquire+0x170/0x3c0
[ 717.750254] ? __alloc_fd+0x34/0x570
[ 717.754863] ? do_raw_spin_unlock+0x171/0x230
[ 717.759362] ? _raw_spin_unlock+0x29/0x40
[ 717.764349] ? __alloc_fd+0x28d/0x570
[ 717.768163] do_sys_open+0x3b3/0x520
[ 717.772748] ? filp_open+0x70/0x70
[ 717.776298] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[ 717.782502] ? trace_hardirqs_off_caller+0x6e/0x210
[ 717.787520] ? do_syscall_64+0x21/0x620
[ 717.792378] do_syscall_64+0xf9/0x620
[ 717.796186] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 717.801378] RIP: 0033:0x7fa05b485277
[ 717.806381] Code: Bad RIP value.
[ 717.809749] RSP: 002b:00007ffdb3d23ec0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[ 717.818518] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa05b485277
[ 717.826364] RDX: 0000000000000002 RSI: 00007ffdb3d23f50 RDI: 00000000ffffff9c
[ 717.834183] RBP: 00007ffdb3d23f50 R08: 000000000001f1c1 R09: 000000000001f1ba
[ 717.841449] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
[ 717.849692] R13: 00005555573e82c0 R14: 431bde82d7b634db R15: 00007ffdb3d23f90
[ 717.857756]
[ 717.857756] Showing all locks held in the system:
[ 717.864664] 1 lock held by khungtaskd/1571:
[ 717.868978] #0: 00000000e2efd183 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265
[ 717.878881] 1 lock held by in:imklog/7758:
[ 717.885808] #0: 0000000078e3851c (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310
[ 717.894334] 2 locks held by systemd-udevd/8122:
[ 717.899011] 1 lock held by syz-executor925/8128:
[ 717.904643] #0: 00000000051751bd (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x1d0/0x1480
[ 717.913561]
[ 717.915189] =============================================
[ 717.915189]
[ 717.923350] NMI backtrace for cpu 1
[ 717.926986] CPU: 1 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
[ 717.934422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 717.943766] Call Trace:
[ 717.946356] dump_stack+0x1fc/0x2ef
[ 717.949983] nmi_cpu_backtrace.cold+0x63/0xa2
[ 717.954478] ? lapic_can_unplug_cpu+0x80/0x80
[ 717.958970] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0
[ 717.964246] watchdog+0x991/0xe60
[ 717.967698] ? reset_hung_task_detector+0x30/0x30
[ 717.972534] kthread+0x33f/0x460
[ 717.975896] ? kthread_park+0x180/0x180
[ 717.979868] ret_from_fork+0x24/0x30
[ 717.983667] Sending NMI from CPU 1 to CPUs 0:
[ 717.988605] NMI backtrace for cpu 0
[ 717.988611] CPU: 0 PID: 8122 Comm: systemd-udevd Not tainted 4.19.211-syzkaller #0
[ 717.988617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 717.988621] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x50
[ 717.988632] Code: ff 48 89 df e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <48> 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2
[ 717.988636] RSP: 0018:ffff888099527890 EFLAGS: 00000213
[ 717.988643] RAX: 1ffff11015ca6714 RBX: 0000000000000007 RCX: ffffffff87eecf4e
[ 717.988648] RDX: dffffc0000000000 RSI: ffffffff87eecee7 RDI: 0000000000000007
[ 717.988653] RBP: ffff8880ae5338a0 R08: 0000000000000000 R09: 000000000000003f
[ 717.988658] R10: 0000000000000007 R11: 0000000000000000 R12: ffff8880ae533868
[ 717.988663] R13: 0000000000000024 R14: 0000000000000000 R15: ffff8880ae533840
[ 717.988668] FS: 00007f420b1db8c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
[ 717.988673] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 717.988678] CR2: 000055ba0fd48988 CR3: 00000000b508d000 CR4: 00000000003406f0
[ 717.988683] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 717.988688] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 717.988690] Call Trace:
[ 717.988694] radix_tree_next_chunk+0x2e1/0xaa0
[ 717.988697] find_get_entries+0x5cc/0xa90
[ 717.988701] ? filemap_fault+0x2180/0x2180
[ 717.988705] ? replace_page_cache_page+0xa80/0xa80
[ 717.988708] ? __put_compound_page+0xc0/0xc0
[ 717.988712] pagevec_lookup_entries+0x35/0x80
[ 717.988716] truncate_inode_pages_range+0x1d1/0x1b00
[ 717.988720] ? truncate_inode_page+0xc0/0xc0
[ 717.988723] ? fd_statfs+0xe0/0x100
[ 717.988726] ? blkdev_put+0x30/0x520
[ 717.988729] __blkdev_put+0x2a8/0x870
[ 717.988733] ? fsync_bdev+0xc0/0xc0
[ 717.988736] ? locks_remove_file+0x2cd/0x450
[ 717.988740] ? blkdev_put+0x85/0x520
[ 717.988743] ? blkdev_put+0x520/0x520
[ 717.988746] blkdev_close+0x86/0xb0
[ 717.988749] __fput+0x2ce/0x890
[ 717.988753] task_work_run+0x148/0x1c0
[ 717.988756] exit_to_usermode_loop+0x251/0x2a0
[ 717.988760] do_syscall_64+0x538/0x620
[ 717.988764] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 717.988767] RIP: 0033:0x7f420a321270
[ 717.988778] Code: 73 01 c3 48 8b 0d 38 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 59 c1 20 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ee fb ff ff 48 89 04 24
[ 717.988781] RSP: 002b:00007ffce5734c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[ 717.988790] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f420a321270
[ 717.988795] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007
[ 717.988800] RBP: 00007f420b1db710 R08: 000055ba0fd4ff40 R09: 000055ba0fd4fd00
[ 717.988805] R10: 00007f420b1db8c0 R11: 0000000000000246 R12: 0000000000000000
[ 717.988811] R13: 000055ba0fd4c880 R14: 0000000000000003 R15: 000000000000000e
[ 718.010647] Kernel panic - not syncing: hung_task: blocked tasks
[ 718.273300] CPU: 1 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
[ 718.280735] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 718.290075] Call Trace:
[ 718.292661] dump_stack+0x1fc/0x2ef
[ 718.296290] panic+0x26a/0x50e
[ 718.299479] ? __warn_printk+0xf3/0xf3
[ 718.303365] ? lapic_can_unplug_cpu+0x80/0x80
[ 718.307852] ? ___preempt_schedule+0x16/0x18
[ 718.312255] ? watchdog+0x991/0xe60
[ 718.315879] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0
[ 718.321325] watchdog+0x9a2/0xe60
[ 718.324780] ? reset_hung_task_detector+0x30/0x30
[ 718.329620] kthread+0x33f/0x460
[ 718.332979] ? kthread_park+0x180/0x180
[ 718.336952] ret_from_fork+0x24/0x30
[ 718.340963] Kernel Offset: disabled
[ 718.344583] Rebooting in 86400 seconds..