IPVS: ftp: loaded support on port[0] = 21 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 INFO: task syz-executor.4:751 blocked for more than 140 seconds. Not tainted 4.19.211-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. syz-executor.4 D28648 751 22525 0x00000004 Call Trace: context_switch kernel/sched/core.c:2828 [inline] __schedule+0x887/0x2040 kernel/sched/core.c:3517 schedule+0x8d/0x1b0 kernel/sched/core.c:3561 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3619 __mutex_lock_common kernel/locking/mutex.c:1016 [inline] __mutex_lock+0x5f0/0x1190 kernel/locking/mutex.c:1078 device_lock include/linux/device.h:1174 [inline] usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fd713fef72b Code: Bad RIP value. RSP: 002b:00007ffc31db5ba0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fd713fef72b RDX: 00007fd71416d2f0 RSI: ffffffff8167abaa RDI: 0000000000000004 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b33825ccc R10: 0000000000001a0c R11: 0000000000000293 R12: 000000000011076c R13: 00000000000003e8 R14: 00007fd71414ff60 R15: 00000000001106e7 Showing all locks held in the system: 1 lock held by khungtaskd/1564: #0: 00000000a42589b2 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441 1 lock held by in:imklog/7792: #0: 00000000f899776a (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767 5 locks held by kworker/1:3/9042: #0: 000000001639dd82 ((wq_completion)"usb_hub_wq"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124 #1: 000000005daa45fc ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128 #2: 0000000002ccd281 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #2: 0000000002ccd281 (&dev->mutex){....}, at: hub_event+0x11e/0x44a0 drivers/usb/core/hub.c:5387 #3: 0000000080232880 (&port_dev->status_lock){+.+.}, at: usb_lock_port drivers/usb/core/hub.c:2983 [inline] #3: 0000000080232880 (&port_dev->status_lock){+.+.}, at: hub_port_connect drivers/usb/core/hub.c:5069 [inline] #3: 0000000080232880 (&port_dev->status_lock){+.+.}, at: hub_port_connect_change drivers/usb/core/hub.c:5253 [inline] #3: 0000000080232880 (&port_dev->status_lock){+.+.}, at: port_event drivers/usb/core/hub.c:5361 [inline] #3: 0000000080232880 (&port_dev->status_lock){+.+.}, at: hub_event+0x1cb8/0x44a0 drivers/usb/core/hub.c:5441 #4: 00000000c3a3a1fa (hcd->address0_mutex){+.+.}, at: hub_port_init+0x1b9/0x3120 drivers/usb/core/hub.c:4578 1 lock held by syz-executor.4/751: #0: 0000000002ccd281 (&dev->mutex){....}, at: device_lock include/linux/device.h:1174 [inline] #0: 0000000002ccd281 (&dev->mutex){....}, at: usbdev_release+0x83/0x420 drivers/usb/core/devio.c:1049 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 1564 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline] watchdog+0x991/0xe60 kernel/hung_task.c:287 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 4695 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:263 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline] RIP: 0010:write_comp_data+0x1d/0x70 kernel/kcov.c:122 Code: d1 48 89 11 c3 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 fa 65 48 8b 34 25 c0 df 01 00 65 8b 05 7a 59 9f 7e a9 00 01 1f 00 75 4f <8b> 86 60 13 00 00 83 f8 03 75 44 48 8b 86 68 13 00 00 8b b6 64 13 RSP: 0018:ffff8880a086fa38 EFLAGS: 00000046 RAX: 0000000080000002 RBX: ffff88820e09b1c0 RCX: ffffffff812b5e56 RDX: ffff88828e09b1c0 RSI: ffff8880a0864640 RDI: 0000000000000006 RBP: ffff88828e09b1c0 R08: 00000000083826c0 R09: ffff88820e09b1c0 R10: 0000000000000006 R11: 0000000000000000 R12: 0000000000000000 R13: ffffea00083826c8 R14: ffffea00083826c0 R15: ffff88823b83f800 FS: 00007fde246128c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fde21ca7000 CR3: 00000000a0c6b000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __phys_addr+0x26/0x110 arch/x86/mm/physaddr.c:19 virt_to_head_page include/linux/mm.h:665 [inline] free_block+0xa0/0x230 mm/slab.c:3420 __drain_alien_cache+0x59/0x70 mm/slab.c:743 __cache_free_alien mm/slab.c:811 [inline] cache_free_alien mm/slab.c:837 [inline] ___cache_free+0x385/0x3a0 mm/slab.c:3525 qlink_free mm/kasan/quarantine.c:147 [inline] qlist_free_all+0x79/0x140 mm/kasan/quarantine.c:166 quarantine_reduce+0x1a9/0x230 mm/kasan/quarantine.c:259 kasan_kmalloc+0xa2/0x160 mm/kasan/kasan.c:538 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] kmem_cache_alloc+0x110/0x370 mm/slab.c:3557 prepare_creds+0x39/0x510 kernel/cred.c:255 do_faccessat+0x94/0x7a0 fs/open.c:359 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fde238cd9c7 Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48 RSP: 002b:00007ffcbf2b4078 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00007ffcbf2b6f90 RCX: 00007fde238cd9c7 RDX: 00007fde2433ea00 RSI: 0000000000000000 RDI: 000055d8e42329a3 RBP: 00007ffcbf2b40b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ffcbf2b6f90 R15: 00007ffcbf2b45a0 ---------------- Code disassembly (best guess): 0: d1 48 89 rorl -0x77(%rax) 3: 11 c3 adc %eax,%ebx 5: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) c: 00 d: 49 89 f1 mov %rsi,%r9 10: 49 89 fa mov %rdi,%r10 13: 65 48 8b 34 25 c0 df mov %gs:0x1dfc0,%rsi 1a: 01 00 1c: 65 8b 05 7a 59 9f 7e mov %gs:0x7e9f597a(%rip),%eax # 0x7e9f599d 23: a9 00 01 1f 00 test $0x1f0100,%eax 28: 75 4f jne 0x79 * 2a: 8b 86 60 13 00 00 mov 0x1360(%rsi),%eax <-- trapping instruction 30: 83 f8 03 cmp $0x3,%eax 33: 75 44 jne 0x79 35: 48 8b 86 68 13 00 00 mov 0x1368(%rsi),%rax 3c: 8b .byte 0x8b 3d: b6 64 mov $0x64,%dh 3f: 13 .byte 0x13