hid-generic 0000:0000:0000.6E88: unknown main item tag 0x0 hid-generic 0000:0000:0000.6E88: unknown main item tag 0x0 hid-generic 0000:0000:0000.6E88: unknown main item tag 0x0 hid-generic 0000:0000:0000.6E88: unknown main item tag 0x0 hid-generic 0000:0000:0000.6E88: hidraw3: HID v0.00 Device [syz1] on syz1 INFO: task init:9472 blocked for more than 140 seconds. Not tainted 4.14.72+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29352 9472 1 0x00000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3408 [inline] path_openat+0x4eb/0x23a0 fs/namei.c:3550 do_filp_open+0x197/0x270 fs/namei.c:3584 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7fc2541cf120 RSP: 002b:00007ffcc12cde68 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000c22f40 RCX: 00007fc2541cf120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffcc12cdfe0 R15: 0000000000c22f48 INFO: task init:9473 blocked for more than 140 seconds. Not tainted 4.14.72+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29352 9473 1 0x00000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3408 [inline] path_openat+0x4eb/0x23a0 fs/namei.c:3550 do_filp_open+0x197/0x270 fs/namei.c:3584 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7fc2541cf120 RSP: 002b:00007ffcc12cde68 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000c23010 RCX: 00007fc2541cf120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffcc12cdfe0 R15: 0000000000c23018 INFO: task init:9474 blocked for more than 140 seconds. Not tainted 4.14.72+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29352 9474 1 0x00000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3408 [inline] path_openat+0x4eb/0x23a0 fs/namei.c:3550 do_filp_open+0x197/0x270 fs/namei.c:3584 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 hid-generic 0000:0000:0000.6E87: hidraw4: HID v0.00 Device [syz1] on syz1 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7fc2541cf120 RSP: 002b:00007ffcc12cde68 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000c230e0 RCX: 00007fc2541cf120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffcc12cdfe0 R15: 0000000000c230e8 INFO: task init:9477 blocked for more than 140 seconds. Not tainted 4.14.72+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29040 9477 1 0x00000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3408 [inline] path_openat+0x4eb/0x23a0 fs/namei.c:3550 do_filp_open+0x197/0x270 fs/namei.c:3584 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7fc2541cf120 RSP: 002b:00007ffcc12cde68 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000c231b0 RCX: 00007fc2541cf120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffcc12cdfe0 R15: 0000000000c231b8 INFO: task init:9478 blocked for more than 140 seconds. Not tainted 4.14.72+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29112 9478 1 0x00000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_timeout+0x710/0xe60 kernel/time/timer.c:1721 __down_common kernel/locking/semaphore.c:221 [inline] __down+0x180/0x2a0 kernel/locking/semaphore.c:238 down+0x58/0x70 kernel/locking/semaphore.c:62 console_lock+0x24/0x70 kernel/printk/printk.c:2056 console_device+0x17/0xb0 kernel/printk/printk.c:2343 tty_lookup_driver+0x17a/0x210 drivers/tty/tty_io.c:1828 tty_open_by_driver drivers/tty/tty_io.c:1923 [inline] tty_open+0x3b9/0x980 drivers/tty/tty_io.c:2006 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3408 [inline] path_openat+0x4eb/0x23a0 fs/namei.c:3550 do_filp_open+0x197/0x270 fs/namei.c:3584 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7fc2541cf120 RSP: 002b:00007ffcc12cde68 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000c23280 RCX: 00007fc2541cf120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffcc12cdfe0 R15: 0000000000c23288 INFO: task init:9479 blocked for more than 140 seconds. Not tainted 4.14.72+ #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. init D29352 9479 1 0x00000000 Call Trace: schedule+0x7f/0x1b0 kernel/sched/core.c:3490 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548 __mutex_lock_common kernel/locking/mutex.c:833 [inline] __mutex_lock+0x521/0x1480 kernel/locking/mutex.c:893 tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 chrdev_open+0x20d/0x570 fs/char_dev.c:417 do_dentry_open+0x426/0xda0 fs/open.c:764 vfs_open+0x11c/0x210 fs/open.c:878 do_last fs/namei.c:3408 [inline] path_openat+0x4eb/0x23a0 fs/namei.c:3550 do_filp_open+0x197/0x270 fs/namei.c:3584 do_sys_open+0x2ef/0x580 fs/open.c:1071 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7fc2541cf120 RSP: 002b:00007ffcc12cde68 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 0000000000c23350 RCX: 00007fc2541cf120 RDX: 0000000000000010 RSI: 0000000000000902 RDI: 00000000004072c8 RBP: 0000000000000000 R08: 0000000000407370 R09: 0000000000000001 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000902 R13: 0000000000000102 R14: 00007ffcc12cdfe0 R15: 0000000000c23358 Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: (tasklist_lock){.+.+}, at: [] debug_show_all_locks+0x74/0x20f kernel/locking/lockdep.c:4541 1 lock held by rsyslogd/1628: #0: (&f->f_pos_lock){+.+.}, at: [] __fdget_pos+0xa2/0xc0 fs/file.c:768 2 locks held by getty/1756: #0: (&tty->ldisc_sem){++++}, at: [] tty_ldisc_ref_wait+0x20/0x80 drivers/tty/tty_ldisc.c:275 #1: (&ldata->atomic_read_lock){+.+.}, at: [] n_tty_read+0x1ff/0x15e0 drivers/tty/n_tty.c:2142 1 lock held by init/9472: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 1 lock held by init/9473: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 1 lock held by init/9474: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 1 lock held by init/9477: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 1 lock held by init/9478: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 1 lock held by init/9479: #0: (tty_mutex){+.+.}, at: [] tty_open_by_driver drivers/tty/tty_io.c:1922 [inline] #0: (tty_mutex){+.+.}, at: [] tty_open+0x3a8/0x980 drivers/tty/tty_io.c:2006 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 23 Comm: khungtaskd Not tainted 4.14.72+ #11 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x11b lib/dump_stack.c:53 nmi_cpu_backtrace.cold.0+0x47/0x85 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x121/0x146 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:138 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:196 [inline] watchdog+0x574/0xa70 kernel/hung_task.c:252 kthread+0x348/0x420 kernel/kthread.c:232 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 8003 Comm: udevd Not tainted 4.14.72+ #11 task: ffff8801c5778000 task.stack: ffff8801c1ac0000 RIP: 0010:preempt_count_sub+0x1f/0x120 kernel/sched/core.c:3185 RSP: 0018:ffff8801c1ac7580 EFLAGS: 00000a06 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 1ffffffff4e7a074 RSI: ffff8801c1ac7530 RDI: ffffffffa73d03a0 RBP: ffff8801c1ac7588 R08: 0000000000000001 R09: 0000000000000001 R10: ffffed0038358ed8 R11: 000000000001c033 R12: ffff8801c1ac0000 R13: ffff8801c1ac76a8 R14: ffff8801c1ac7670 R15: ffff8801c1ac7f08 FS: 00007f1019caf7a0(0000) GS:ffff8801d7600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f101966c518 CR3: 00000001c168a002 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: unwind_next_frame+0xea9/0x1930 arch/x86/kernel/unwind_orc.c:481 __save_stack_trace+0x7d/0xf0 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_slab_free+0xac/0x190 mm/kasan/kasan.c:524 slab_free_hook mm/slub.c:1389 [inline] slab_free_freelist_hook mm/slub.c:1410 [inline] slab_free mm/slub.c:2966 [inline] kmem_cache_free+0x12d/0x350 mm/slub.c:2988 anon_vma_chain_free mm/rmap.c:134 [inline] unlink_anon_vmas+0x284/0x7d0 mm/rmap.c:401 free_pgtables+0x139/0x220 mm/memory.c:643 exit_mmap+0x208/0x420 mm/mmap.c:3069 __mmput kernel/fork.c:929 [inline] mmput+0xc8/0x350 kernel/fork.c:950 exec_mmap fs/exec.c:1039 [inline] flush_old_exec+0x805/0x1a80 fs/exec.c:1271 load_elf_binary+0x83c/0x4530 fs/binfmt_elf.c:855 search_binary_handler+0x13f/0x6c0 fs/exec.c:1638 exec_binprm fs/exec.c:1680 [inline] do_execveat_common.isra.14+0x1109/0x1d60 fs/exec.c:1802 do_execve fs/exec.c:1847 [inline] SYSC_execve fs/exec.c:1928 [inline] SyS_execve+0x34/0x40 fs/exec.c:1923 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7f1019393207 RSP: 002b:00007fff644ea6c8 EFLAGS: 00000202 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f1019393207 RDX: 000000000095a3f0 RSI: 00007fff644ea7c0 RDI: 00007fff644eb7d0 RBP: 0000000000625500 R08: 000000000000012c R09: 000000000000012c R10: 0000000000000000 R11: 0000000000000202 R12: 000000000095a3f0 R13: 00000000ffffffff R14: 000000000081b030 R15: 0000000000000005 Code: fe ff ff 66 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 89 fb 48 c7 c7 a0 03 3d a7 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85