INFO: task systemd-udevd:10781 blocked for more than 143 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:systemd-udevd state:D stack:28152 pid:10781 ppid: 4859 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0x916/0x23e0 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5285 __mutex_lock_common kernel/locking/mutex.c:1026 [inline] __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1096 dev_ioctl+0x458/0xb70 net/core/dev_ioctl.c:439 sock_do_ioctl+0x148/0x2d0 net/socket.c:1062 sock_ioctl+0x477/0x6a0 net/socket.c:1179 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fcaf8217017 RSP: 002b:00007ffedadc3e18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffedadc3e60 RCX: 00007fcaf8217017 RDX: 00007ffedadc3e30 RSI: 0000000000008946 RDI: 0000000000000007 RBP: 00007ffedadc3fd0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 0000561c2613dcf0 R13: 00007ffedadc3e30 R14: 0000000000000001 R15: 0000000000000000 INFO: task systemd-udevd:10795 blocked for more than 143 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:systemd-udevd state:D stack:27656 pid:10795 ppid: 4859 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0x916/0x23e0 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5285 __mutex_lock_common kernel/locking/mutex.c:1026 [inline] __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1096 dev_ioctl+0x458/0xb70 net/core/dev_ioctl.c:439 sock_do_ioctl+0x148/0x2d0 net/socket.c:1062 sock_ioctl+0x477/0x6a0 net/socket.c:1179 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fcaf8217017 RSP: 002b:00007ffedadc3e18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffedadc3e60 RCX: 00007fcaf8217017 RDX: 00007ffedadc3e30 RSI: 0000000000008946 RDI: 0000000000000007 RBP: 00007ffedadc3fd0 R08: 0000000000000000 R09: 0000000000000018 R10: 0000000000000001 R11: 0000000000000246 R12: 0000561c2613dcf0 R13: 00007ffedadc3e30 R14: 0000000000000001 R15: 0000000000000000 INFO: task systemd-udevd:10798 blocked for more than 144 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:systemd-udevd state:D stack:27688 pid:10798 ppid: 4859 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0x916/0x23e0 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5285 __mutex_lock_common kernel/locking/mutex.c:1026 [inline] __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1096 dev_ioctl+0x458/0xb70 net/core/dev_ioctl.c:439 sock_do_ioctl+0x148/0x2d0 net/socket.c:1062 sock_ioctl+0x477/0x6a0 net/socket.c:1179 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fcaf8217017 RSP: 002b:00007ffedadc4408 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffedadc4450 RCX: 00007fcaf8217017 RDX: 00007ffedadc4420 RSI: 0000000000008946 RDI: 0000000000000007 RBP: 00007ffedadc45c0 R08: 0000000000000000 R09: 0000000000000018 R10: 0000000000000001 R11: 0000000000000246 R12: 0000561c2613dcf0 R13: 00007ffedadc4420 R14: 0000000000000001 R15: 0000000000000000 INFO: task systemd-udevd:10802 blocked for more than 145 seconds. Not tainted 5.13.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:systemd-udevd state:D stack:28152 pid:10802 ppid: 4859 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:4339 [inline] __schedule+0x916/0x23e0 kernel/sched/core.c:5147 schedule+0xcf/0x270 kernel/sched/core.c:5226 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:5285 __mutex_lock_common kernel/locking/mutex.c:1026 [inline] __mutex_lock+0x81f/0x1120 kernel/locking/mutex.c:1096 dev_ioctl+0x458/0xb70 net/core/dev_ioctl.c:439 sock_do_ioctl+0x148/0x2d0 net/socket.c:1062 sock_ioctl+0x477/0x6a0 net/socket.c:1179 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl fs/ioctl.c:1055 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:1055 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fcaf8217017 RSP: 002b:00007ffedadc3e18 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffedadc3e60 RCX: 00007fcaf8217017 RDX: 00007ffedadc3e30 RSI: 0000000000008946 RDI: 0000000000000007 RBP: 00007ffedadc3fd0 R08: 0000000000000000 R09: 0000000000000018 R10: 0000000000000001 R11: 0000000000000246 R12: 0000561c2613dcf0 R13: 00007ffedadc3e30 R14: 0000000000000001 R15: 0000000000000000 Showing all locks held in the system: 3 locks held by kworker/0:0/5: #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246 #1: ffffc90000ca7da8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 #2: ffffffff8d6a4ae8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1340 net/ipv6/addrconf.c:4031 2 locks held by kworker/u4:0/9: #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246 #1: ffffc90000ce7da8 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 2 locks held by kworker/u4:1/25: #0: ffff8880b9c35258 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1334 [inline] (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x23e0 kernel/sched/core.c:5061 #1: ffffc90000dffda8 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 3 locks held by kworker/1:1/27: #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888028173938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246 #1: ffffc90000e1fda8 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 #2: ffffffff8d6a4ae8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4574 2 locks held by kworker/u4:3/162: #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888011069138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246 #1: ffffc9000114fda8 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 5 locks held by kworker/u4:4/186: #0: ffff88814014b138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff88814014b138 ((wq_completion)netns){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff88814014b138 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff88814014b138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff88814014b138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff88814014b138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246 #1: ffffc9000100fda8 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 #2: ffffffff8d691650 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9b/0xb10 net/core/net_namespace.c:557 #3: ffffffff8d6a4ae8 (rtnl_mutex){+.+.}-{3:3}, at: ip6gre_exit_batch_net+0x88/0x750 net/ipv6/ip6_gre.c:1625 #4: ffffffff8bf824a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #4: ffffffff8bf824a8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fa/0x620 kernel/rcu/tree_exp.h:837 1 lock held by khungtaskd/1629: #0: ffffffff8bf792a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6333 1 lock held by khugepaged/1652: #0: ffffffff8c05a0c8 (lock#5){+.+.}-{3:3}, at: __lru_add_drain_all+0x65/0x760 mm/swap.c:791 3 locks held by kworker/0:3/3890: #0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:616 [inline] #0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:643 [inline] #0: ffff888011064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x871/0x1600 kernel/workqueue.c:2246 #1: ffffc90003217da8 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1600 kernel/workqueue.c:2250 #2: ffffffff8d6a4ae8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:74 1 lock held by in:imklog/8127: #0: ffff88802135ed70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:974 6 locks held by kworker/0:6/9645: 1 lock held by systemd-udevd/10781: #0: ffffffff8d6a4ae8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x458/0xb70 net/core/dev_ioctl.c:439 1 lock held by systemd-udevd/10795: #0: ffffffff8d6a4ae8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x458/0xb70 net/core/dev_ioctl.c:439 1 lock held by systemd-udevd/10798: #0: ffffffff8d6a4ae8 ( rtnl_mutex ){+.+.}-{3:3}, at: dev_ioctl+0x458/0xb70 net/core/dev_ioctl.c:439 1 lock held by systemd-udevd/10802: #0: ffffffff8d6a4ae8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x458/0xb70 net/core/dev_ioctl.c:439 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1629 Comm: khungtaskd Not tainted 5.13.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x141/0x1d7 lib/dump_stack.c:120 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline] watchdog+0xd48/0xfb0 kernel/hung_task.c:294 kthread+0x3b1/0x4a0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 9645 Comm: kworker/0:6 Not tainted 5.13.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events uhid_device_add_worker RIP: 0010:_tolower include/linux/ctype.h:72 [inline] RIP: 0010:format_decode+0x334/0xad0 lib/vsprintf.c:2546 Code: 0c 24 e8 3f 52 8a fd 0f b6 0c 24 80 f9 12 0f 86 70 01 00 00 e8 7d 4b 8a fd be 01 00 00 00 31 ff e8 21 52 8a fd e8 6c 4b 8a fd <89> d8 bf 6c 00 00 00 31 db 83 c8 20 89 c6 88 44 24 10 e8 05 52 8a RSP: 0018:ffffc9000981ee90 EFLAGS: 00000093 RAX: 0000000000000000 RBX: 0000000000000063 RCX: 0000000000000000 RDX: ffff888058df3880 RSI: ffffffff83ea87f4 RDI: 0000000000000003 RBP: ffffc9000981efa8 R08: 0000000000000009 R09: 0000000000000001 R10: ffffffff83ea87ef R11: 0000000000000000 R12: ffffffff896c7021 R13: ffffffff896c7020 R14: 1ffff92001303dd5 R15: 0000000000000063 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3ccc027000 CR3: 000000002d4c3000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vsnprintf+0x155/0x14f0 lib/vsprintf.c:2704 snprintf+0xbb/0xf0 lib/vsprintf.c:2885 print_caller kernel/printk/printk.c:1276 [inline] info_print_prefix+0x11c/0x340 kernel/printk/printk.c:1295 record_print_text+0x14d/0x3e0 kernel/printk/printk.c:1342 console_unlock+0x303/0xc40 kernel/printk/printk.c:2629 vprintk_emit+0x1ca/0x560 kernel/printk/printk.c:2174 dev_vprintk_emit+0x36e/0x3b2 drivers/base/core.c:4521 dev_printk_emit+0xba/0xf1 drivers/base/core.c:4532 __dev_printk+0xcf/0xf5 drivers/base/core.c:4544 _dev_warn+0xd7/0x109 drivers/base/core.c:4588 hid_parser_main.cold+0xa2/0xf1 drivers/hid/hid-core.c:630 hid_open_report+0x37f/0x660 drivers/hid/hid-core.c:1260 hid_parse include/linux/hid.h:1048 [inline] hid_generic_probe+0x4a/0x90 drivers/hid/hid-generic.c:63 hid_device_probe+0x2bd/0x3f0 drivers/hid/hid-core.c:2284 really_probe+0x291/0xf60 drivers/base/dd.c:576 driver_probe_device+0x298/0x410 drivers/base/dd.c:763 __device_attach_driver+0x203/0x2c0 drivers/base/dd.c:870 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:431 __device_attach+0x228/0x4b0 drivers/base/dd.c:938 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:491 device_add+0xbe0/0x2100 drivers/base/core.c:3320 hid_add_device+0x344/0x9d0 drivers/hid/hid-core.c:2440 uhid_device_add_worker+0x36/0x60 drivers/hid/uhid.c:62 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294