[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.54' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 482.549189] ntfs: (device loop0): ntfs_read_inode_mount(): Device read failed. [ 482.556840] ntfs: (device loop0): ntfs_read_inode_mount(): Failed. Marking inode as bad. [ 482.565311] ntfs: (device loop0): ntfs_fill_super(): Failed to load essential metadata. executing program [ 482.654351] ntfs: (device loop0): ntfs_read_inode_mount(): Device read failed. [ 482.661911] ntfs: (device loop0): ntfs_read_inode_mount(): Failed. Marking inode as bad. [ 482.670943] ntfs: (device loop0): ntfs_fill_super(): Failed to load essential metadata. executing program executing program [ 482.748345] ntfs: (device loop0): ntfs_read_inode_mount(): Device read failed. [ 482.756332] ntfs: (device loop0): ntfs_read_inode_mount(): Failed. Marking inode as bad. [ 482.765669] ntfs: (device loop0): ntfs_fill_super(): Failed to load essential metadata. executing program [ 482.841286] ntfs: (device loop0): ntfs_read_inode_mount(): Device read failed. [ 717.732289] INFO: task syz-executor366:8142 blocked for more than 140 seconds. [ 717.739761] Not tainted 4.19.211-syzkaller #0 [ 717.746568] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 717.755442] syz-executor366 D28648 8142 8114 0x00000004 [ 717.761080] Call Trace: [ 717.764755] __schedule+0x887/0x2040 [ 717.768476] ? io_schedule_timeout+0x140/0x140 [ 717.774173] ? lock_downgrade+0x720/0x720 [ 717.778332] ? __mutex_lock+0x418/0x1190 [ 717.783501] schedule+0x8d/0x1b0 [ 717.786873] schedule_preempt_disabled+0xf/0x20 [ 717.791623] __mutex_lock+0x5f0/0x1190 [ 717.797049] ? wait_for_completion_io+0x10/0x10 [ 717.801726] ? __blkdev_get+0x1d0/0x1480 [ 717.806883] ? mutex_trylock+0x1a0/0x1a0 [ 717.810954] ? lock_downgrade+0x720/0x720 [ 717.816193] ? lock_acquire+0x170/0x3c0 [ 717.820179] ? get_gendisk+0x83/0x380 [ 717.826191] ? disk_block_events+0x1d/0x130 [ 717.830525] __blkdev_get+0x1d0/0x1480 [ 717.835458] ? bdev_disk_changed+0x1b0/0x1b0 [ 717.839872] ? mark_held_locks+0xf0/0xf0 [ 717.845119] ? mark_held_locks+0xf0/0xf0 [ 717.849192] blkdev_get+0xb0/0x940 [ 717.854017] ? bd_acquire+0x245/0x440 [ 717.857824] ? __blkdev_get+0x1480/0x1480 [ 717.861965] ? lock_downgrade+0x720/0x720 [ 717.867528] ? lock_acquire+0x170/0x3c0 [ 717.871506] ? bd_acquire+0x21/0x440 [ 717.876318] ? do_raw_spin_unlock+0x171/0x230 [ 717.880822] blkdev_open+0x202/0x290 [ 717.885586] do_dentry_open+0x4aa/0x1160 [ 717.889653] ? blkdev_get_by_dev+0x70/0x70 [ 717.894948] ? chown_common+0x550/0x550 [ 717.898937] ? inode_permission+0x3d/0x140 [ 717.904176] path_openat+0x793/0x2df0 [ 717.907986] ? path_lookupat+0x8d0/0x8d0 [ 717.912048] ? mark_held_locks+0xf0/0xf0 [ 717.917512] do_filp_open+0x18c/0x3f0 [ 717.921315] ? may_open_dev+0xf0/0xf0 [ 717.926144] ? lock_downgrade+0x720/0x720 [ 717.930295] ? lock_acquire+0x170/0x3c0 [ 717.935377] ? __alloc_fd+0x34/0x570 [ 717.939104] ? do_raw_spin_unlock+0x171/0x230 [ 717.944683] ? _raw_spin_unlock+0x29/0x40 [ 717.948832] ? __alloc_fd+0x28d/0x570 [ 717.953703] do_sys_open+0x3b3/0x520 [ 717.957422] ? filp_open+0x70/0x70 [ 717.960962] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 717.967882] ? trace_hardirqs_off_caller+0x6e/0x210 [ 717.973624] ? do_syscall_64+0x21/0x620 [ 717.977606] do_syscall_64+0xf9/0x620 [ 717.981409] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.988073] RIP: 0033:0x7fefc478a247 [ 717.991976] Code: Bad RIP value. [ 717.997816] RSP: 002b:00007ffe5c614af0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 718.006243] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fefc478a247 [ 718.014194] RDX: 0000000000000002 RSI: 00007ffe5c614b80 RDI: 00000000ffffff9c [ 718.021464] RBP: 00007ffe5c614b80 R08: 000000000001f1c1 R09: 000000000001f1ba [ 718.029757] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 [ 718.037734] R13: 00005555558332c0 R14: 431bde82d7b634db R15: 00007ffe5c614bc0 [ 718.045736] [ 718.045736] Showing all locks held in the system: [ 718.052062] 1 lock held by khungtaskd/1570: [ 718.057760] #0: 000000000dbb1daf (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 718.067091] 1 lock held by in:imklog/7810: [ 718.071318] #0: 00000000d3b067d7 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 718.080383] 2 locks held by systemd-udevd/8136: [ 718.085730] 1 lock held by syz-executor366/8142: [ 718.090479] #0: 000000002f2c98b4 (&bdev->bd_mutex){+.+.}, at: __blkdev_get+0x1d0/0x1480 [ 718.099764] [ 718.101392] ============================================= [ 718.101392] [ 718.109559] NMI backtrace for cpu 1 [ 718.113252] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.120691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 718.130035] Call Trace: [ 718.132617] dump_stack+0x1fc/0x2ef [ 718.136251] nmi_cpu_backtrace.cold+0x63/0xa2 [ 718.140767] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.145257] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 718.150531] watchdog+0x991/0xe60 [ 718.153983] ? reset_hung_task_detector+0x30/0x30 [ 718.158838] kthread+0x33f/0x460 [ 718.162197] ? kthread_park+0x180/0x180 [ 718.166166] ret_from_fork+0x24/0x30 [ 718.170035] Sending NMI from CPU 1 to CPUs 0: [ 718.174946] NMI backtrace for cpu 0 [ 718.174952] CPU: 0 PID: 8136 Comm: systemd-udevd Not tainted 4.19.211-syzkaller #0 [ 718.174958] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 718.174962] RIP: 0010:__sanitizer_cov_trace_pc+0x47/0x50 [ 718.174973] Code: 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13 00 00 48 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 fa 65 48 8b 34 25 c0 df [ 718.174977] RSP: 0018:ffff8880956c7890 EFLAGS: 00000293 [ 718.174984] RAX: ffff888094fd2000 RBX: 0000000000000006 RCX: ffffffff87eecf2b [ 718.174989] RDX: 0000000000000000 RSI: ffffffff87eecf39 RDI: 0000000000000007 [ 718.174994] RBP: ffff8880ae14c218 R08: 0000000000000000 R09: 0000000000000000 [ 718.174999] R10: 0000000000000007 R11: 0000000000000000 R12: ffff8880ae14c1e8 [ 718.175004] R13: 000000000000001e R14: 0000000000000000 R15: ffff8880ae14c1c0 [ 718.175009] FS: 00007f2315b828c0(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 718.175013] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 718.175018] CR2: 00005555558332c0 CR3: 00000000a52b7000 CR4: 00000000003406f0 [ 718.175023] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 718.175028] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 718.175031] Call Trace: [ 718.175034] radix_tree_next_chunk+0x2f9/0xaa0 [ 718.175038] find_get_entries+0x5cc/0xa90 [ 718.175041] ? filemap_fault+0x2180/0x2180 [ 718.175045] ? replace_page_cache_page+0xa80/0xa80 [ 718.175049] ? __put_compound_page+0xc0/0xc0 [ 718.175052] pagevec_lookup_entries+0x35/0x80 [ 718.175056] truncate_inode_pages_range+0x1d1/0x1b00 [ 718.175060] ? truncate_inode_page+0xc0/0xc0 [ 718.175063] ? fd_statfs+0xe0/0x100 [ 718.175066] ? blkdev_put+0x30/0x520 [ 718.175070] __blkdev_put+0x2a8/0x870 [ 718.175073] ? fsync_bdev+0xc0/0xc0 [ 718.175076] ? locks_remove_file+0x2cd/0x450 [ 718.175079] ? blkdev_put+0x85/0x520 [ 718.175083] ? blkdev_put+0x520/0x520 [ 718.175086] blkdev_close+0x86/0xb0 [ 718.175089] __fput+0x2ce/0x890 [ 718.175093] task_work_run+0x148/0x1c0 [ 718.175096] exit_to_usermode_loop+0x251/0x2a0 [ 718.175100] do_syscall_64+0x538/0x620 [ 718.175104] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 718.175107] RIP: 0033:0x7f2314cc8270 [ 718.175117] 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 [ 718.175121] RSP: 002b:00007ffed0af0588 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 718.175130] RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f2314cc8270 [ 718.175135] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000007 [ 718.175140] RBP: 00007f2315b82710 R08: 000055dc7b819500 R09: 000055dc7b819200 [ 718.175145] R10: 00007f2315b828c0 R11: 0000000000000246 R12: 0000000000000000 [ 718.175150] R13: 000055dc7b817880 R14: 0000000000000003 R15: 000000000000000e [ 718.199796] Kernel panic - not syncing: hung_task: blocked tasks [ 718.460612] CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 718.468050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 718.477398] Call Trace: [ 718.479987] dump_stack+0x1fc/0x2ef [ 718.483613] panic+0x26a/0x50e [ 718.486803] ? __warn_printk+0xf3/0xf3 [ 718.490688] ? lapic_can_unplug_cpu+0x80/0x80 [ 718.495180] ? ___preempt_schedule+0x16/0x18 [ 718.499592] ? watchdog+0x991/0xe60 [ 718.503214] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 718.508665] watchdog+0x9a2/0xe60 [ 718.512119] ? reset_hung_task_detector+0x30/0x30 [ 718.516958] kthread+0x33f/0x460 [ 718.520317] ? kthread_park+0x180/0x180 [ 718.524290] ret_from_fork+0x24/0x30 [ 718.528342] Kernel Offset: disabled [ 718.531961] Rebooting in 86400 seconds..