INFO: task kworker/0:2:1147 blocked for more than 143 seconds. Not tainted 6.10.0-rc7-next-20240709-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:2 state:D stack:20912 pid:1147 tgid:1147 ppid:2 flags:0x00004000 Workqueue: events rfkill_global_led_trigger_worker Call Trace: context_switch kernel/sched/core.c:5239 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6603 __schedule_loop kernel/sched/core.c:6680 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6695 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6752 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 rfkill_global_led_trigger_worker+0x27/0xd0 net/rfkill/core.c:182 process_one_work kernel/workqueue.c:3228 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3309 worker_thread+0x86d/0xd40 kernel/workqueue.c:3387 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz.0.2149:12655 blocked for more than 143 seconds. Not tainted 6.10.0-rc7-next-20240709-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.2149 state:D stack:23496 pid:12655 tgid:12652 ppid:12306 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5239 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6603 __schedule_loop kernel/sched/core.c:6680 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6695 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6752 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 rfkill_unregister+0xd0/0x230 net/rfkill/core.c:1149 nfc_unregister_device+0x96/0x2a0 net/nfc/core.c:1167 virtual_ncidev_close+0x59/0x90 drivers/nfc/virtual_ncidev.c:172 __fput+0x24a/0x8a0 fs/file_table.c:422 task_work_run+0x24f/0x310 kernel/task_work.c:204 exit_task_work include/linux/task_work.h:39 [inline] do_exit+0xa2f/0x27f0 kernel/exit.c:882 do_group_exit+0x207/0x2c0 kernel/exit.c:1031 get_signal+0x16a1/0x1740 kernel/signal.c:2909 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff3183757db RSP: 002b:00007ff31906cf20 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: 0000000000000012 RBX: 000000000000000c RCX: 00007ff3183757db RDX: 00007ff31906cfe0 RSI: 0000000040085503 RDI: 000000000000000c RBP: 00007ff31906dff0 R08: 0000000000000080 R09: 00007ff31906cfe8 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502 R13: 0000000800000000 R14: 0000000000000012 R15: 00007ff3183ecaf2 INFO: task syz.3.2291:12699 blocked for more than 144 seconds. Not tainted 6.10.0-rc7-next-20240709-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.2291 state:D stack:23600 pid:12699 tgid:12692 ppid:12332 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5239 [inline] __schedule+0x1800/0x4a60 kernel/sched/core.c:6603 __schedule_loop kernel/sched/core.c:6680 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6695 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6752 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 device_lock include/linux/device.h:1009 [inline] nfc_dev_down net/nfc/core.c:143 [inline] nfc_rfkill_set_block+0x50/0x310 net/nfc/core.c:179 rfkill_set_block+0x1f1/0x440 net/rfkill/core.c:346 rfkill_fop_write+0x5bb/0x790 net/rfkill/core.c:1305 vfs_write+0x2a2/0xc90 fs/read_write.c:588 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fef48375bd9 RSP: 002b:00007fef49155048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fef48504110 RCX: 00007fef48375bd9 RDX: 0000000000000008 RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00007fef483e4e60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007fef48504110 R15: 00007ffe9994c5f8 INFO: lockdep is turned off. NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc7-next-20240709-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120 nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline] watchdog+0xfee/0x1030 kernel/hung_task.c:379 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 4556 Comm: udevd Not tainted 6.10.0-rc7-next-20240709-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:23 [inline] RIP: 0010:raw_atomic_read include/linux/atomic/atomic-arch-fallback.h:457 [inline] RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline] RIP: 0010:rcu_is_watching+0x55/0xb0 kernel/rcu/tree.c:726 Code: ea de 8d 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 74 08 4c 89 f7 e8 0c b5 80 00 48 c7 c3 98 7c 03 00 49 03 1e 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 22 8b 03 65 ff 0d 11 2c 8a 7e 74 10 83 e0 RSP: 0018:ffffc90000a188e0 EFLAGS: 00000806 RAX: 1ffff110172a6f93 RBX: ffff8880b9537c98 RCX: ffffffff816f8b40 RDX: 0000000000000000 RSI: ffffffff8c209860 RDI: ffffffff8c209820 RBP: ffffc90000a18a30 R08: ffffffff8fafd2af R09: 1ffffffff1f5fa55 R10: dffffc0000000000 R11: fffffbfff1f5fa56 R12: 1ffff9200014312c R13: ffffffff84b788d0 R14: ffffffff8ddeea48 R15: dffffc0000000000 FS: 00007fc1db512c80(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d864ac6058 CR3: 0000000078e84000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0xbf/0x9f0 kernel/locking/lockdep.c:5827 debug_objects_fill_pool+0xc0/0x9b0 lib/debugobjects.c:617 debug_object_activate+0x135/0x510 lib/debugobjects.c:705 debug_hrtimer_activate kernel/time/hrtimer.c:423 [inline] debug_activate kernel/time/hrtimer.c:478 [inline] enqueue_hrtimer+0x30/0x3c0 kernel/time/hrtimer.c:1085 __run_hrtimer kernel/time/hrtimer.c:1706 [inline] __hrtimer_run_queues+0x6cb/0xd50 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:unwind_next_frame+0xfbd/0x2a00 arch/x86/kernel/unwind_orc.c:581 Code: 52 00 48 83 c5 38 48 89 ef e8 ef 27 00 00 48 89 c6 4c 8b 64 24 28 48 89 74 24 10 49 8d 6c 24 01 48 8b 44 24 38 42 0f b6 04 28 <84> c0 0f 85 20 13 00 00 48 89 e8 48 c1 e8 03 48 89 44 24 78 42 0f RSP: 0018:ffffc9000367f7c8 EFLAGS: 00000282 RAX: 0000000000000000 RBX: ffffffff90d4c88b RCX: ffff88807986da00 RDX: ffffffff90d4c88a RSI: ffffc9000367ff58 RDI: 0000000000000005 RBP: ffffffff90d4c88f R08: 0000000000000005 R09: ffffffff8140ff0e R10: 0000000000000008 R11: ffff88807986da00 R12: ffffffff90d4c88e R13: dffffc0000000000 R14: ffffc9000367f8f0 R15: 1ffff920006cff14 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:312 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:4002 [inline] slab_alloc_node mm/slub.c:4051 [inline] kmem_cache_alloc_lru_noprof+0x139/0x2b0 mm/slub.c:4070 __d_alloc+0x31/0x700 fs/dcache.c:1628 d_alloc+0x4b/0x190 fs/dcache.c:1708 lookup_one_qstr_excl+0xce/0x260 fs/namei.c:1629 do_unlinkat+0x297/0x830 fs/namei.c:4431 __do_sys_unlink fs/namei.c:4491 [inline] __se_sys_unlink fs/namei.c:4489 [inline] __x64_sys_unlink+0x47/0x50 fs/namei.c:4489 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc1db117da7 Code: f0 ff ff 73 01 c3 48 8b 0d 7e 90 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 51 90 0d 00 f7 d8 64 89 01 48 RSP: 002b:00007fff0b505438 EFLAGS: 00000202 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc1db117da7 RDX: 0000000000000080 RSI: 00007fff0b505628 RDI: 000055bb17c4d0d8 RBP: 000000000000000b R08: 0000000022fa7f2b R09: 7fffffffffffffff R10: 00007fc1db6190b8 R11: 0000000000000202 R12: 0000000000000bb8 R13: 0000000200000001 R14: 0000000000000001 R15: 0000000000000000