INFO: task kworker/1:3:30309 blocked for more than 430 seconds. Not tainted 6.12.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack:0 pid:30309 tgid:30309 ppid:2 flags:0x00000000 Workqueue: events rfkill_global_led_trigger_worker Call trace: [<819bb4d4>] (__schedule) from [<819bc114>] (__schedule_loop kernel/sched/core.c:6759 [inline]) [<819bb4d4>] (__schedule) from [<819bc114>] (schedule+0x2c/0xfc kernel/sched/core.c:6774) r10:82c18205 r9:00000000 r8:827ec148 r7:00000002 r6:ee821e74 r5:84a7d400 r4:84a7d400 [<819bc0e8>] (schedule) from [<819bc4c8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6831) r5:84a7d400 r4:827ec144 [<819bc4b0>] (schedule_preempt_disabled) from [<819befa0>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<819bc4b0>] (schedule_preempt_disabled) from [<819befa0>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<819becb8>] (__mutex_lock.constprop.0) from [<819bf86c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c18205 r9:84a7d400 r8:01800000 r7:ddde40c0 r6:82c18200 r5:82931ed4 r4:827ec144 [<819bf858>] (__mutex_lock_slowpath) from [<819bf8ac>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<819bf870>] (mutex_lock) from [<818c28a0>] (rfkill_global_led_trigger_worker+0x1c/0xc0 net/rfkill/core.c:182) [<818c2884>] (rfkill_global_led_trigger_worker) from [<80266034>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3229) r5:82931ed4 r4:84786d00 [<80265e80>] (process_one_work) from [<80266c18>] (process_scheduled_works kernel/workqueue.c:3310 [inline]) [<80265e80>] (process_one_work) from [<80266c18>] (worker_thread+0x1ec/0x3bc kernel/workqueue.c:3391) r10:84a7d400 r9:84786d2c r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:84786d00 [<80266a2c>] (worker_thread) from [<8026fc90>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:eb0f9e78 r8:84be4100 r7:84786d00 r6:80266a2c r5:84a7d400 r4:84bbb000 [<8026fb8c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xee821fb0 to 0xee821ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fb8c r4:84bbb000 INFO: task syz.0.33063:6575 blocked for more than 430 seconds. Not tainted 6.12.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.33063 state:D stack:0 pid:6575 tgid:6575 ppid:3114 flags:0x00000001 Call trace: [<819bb4d4>] (__schedule) from [<819bc114>] (__schedule_loop kernel/sched/core.c:6759 [inline]) [<819bb4d4>] (__schedule) from [<819bc114>] (schedule+0x2c/0xfc kernel/sched/core.c:6774) r10:000001b4 r9:00000000 r8:827ec148 r7:00000002 r6:eab75df4 r5:834b0c00 r4:834b0c00 [<819bc0e8>] (schedule) from [<819bc4c8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6831) r5:834b0c00 r4:827ec144 [<819bc4b0>] (schedule_preempt_disabled) from [<819befa0>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<819bc4b0>] (schedule_preempt_disabled) from [<819befa0>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<819becb8>] (__mutex_lock.constprop.0) from [<819bf86c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:000001b4 r9:834b0c00 r8:84bcd550 r7:84a61000 r6:84a61024 r5:847b4a40 r4:847b4800 [<819bf858>] (__mutex_lock_slowpath) from [<819bf8ac>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<819bf870>] (mutex_lock) from [<818c3378>] (rfkill_unregister+0x5c/0xc4 net/rfkill/core.c:1145) [<818c331c>] (rfkill_unregister) from [<81907760>] (nfc_unregister_device+0x44/0x118 net/nfc/core.c:1167) r5:847b505c r4:847b5000 [<8190771c>] (nfc_unregister_device) from [<8191470c>] (nci_unregister_device+0x94/0x98 net/nfc/nci/core.c:1312) r5:84a61024 r4:84a61024 [<81914678>] (nci_unregister_device) from [<80b059f4>] (virtual_ncidev_close+0x18/0x30 drivers/nfc/virtual_ncidev.c:172) r9:834b0c00 r8:84bcd550 r7:8383c658 r6:830dddd0 r5:000e001b r4:8522fec0 [<80b059dc>] (virtual_ncidev_close) from [<8051815c>] (__fput+0xdc/0x2e4 fs/file_table.c:431) r5:000e001b r4:841ffa80 [<80518080>] (__fput) from [<805183ec>] (____fput+0x14/0x18 fs/file_table.c:459) r9:834b0c00 r8:82871694 r7:834b0c00 r6:834b1484 r5:834b1454 r4:00000000 [<805183d8>] (____fput) from [<8026c5cc>] (task_work_run+0x90/0xb8 kernel/task_work.c:228) [<8026c53c>] (task_work_run) from [<8020bde0>] (resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]) [<8026c53c>] (task_work_run) from [<8020bde0>] (do_work_pending+0x448/0x4f8 arch/arm/kernel/signal.c:631) r9:834b0c00 r8:8020029c r7:000001b4 r6:8020029c r5:eab75fb0 r4:834b0c00 [<8020b998>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x24) Exception stack(0xeab75fb0 to 0xeab75ff8) 5fa0: 00000000 0000001e 00000000 7ebf7938 5fc0: 00000000 00008127 00000000 000001b4 00000000 002862c4 00000000 ffffffff 5fe0: 7ebf7838 7ebf7828 00024234 00132ec0 20000010 00000003 r10:000001b4 r9:834b0c00 r8:8020029c r7:000001b4 r6:00000000 r5:00008127 r4:00000000 INFO: task syz.1.33064:6580 blocked for more than 430 seconds. Not tainted 6.12.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.33064 state:D stack:0 pid:6580 tgid:6576 ppid:3115 flags:0x00000001 Call trace: [<819bb4d4>] (__schedule) from [<819bc114>] (__schedule_loop kernel/sched/core.c:6759 [inline]) [<819bb4d4>] (__schedule) from [<819bc114>] (schedule+0x2c/0xfc kernel/sched/core.c:6774) r10:81c81694 r9:00000000 r8:847b5060 r7:00000002 r6:eabf5de4 r5:82e45400 r4:82e45400 [<819bc0e8>] (schedule) from [<819bc4c8>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6831) r5:82e45400 r4:847b505c [<819bc4b0>] (schedule_preempt_disabled) from [<819befa0>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<819bc4b0>] (schedule_preempt_disabled) from [<819befa0>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<819becb8>] (__mutex_lock.constprop.0) from [<819bf86c>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:81c81694 r9:20000080 r8:00000000 r7:82e45400 r6:00000001 r5:847b505c r4:847b5000 [<819bf858>] (__mutex_lock_slowpath) from [<819bf8ac>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<819bf870>] (mutex_lock) from [<81907fd8>] (device_lock include/linux/device.h:1014 [inline]) [<819bf870>] (mutex_lock) from [<81907fd8>] (nfc_dev_down+0x20/0xc8 net/nfc/core.c:143) [<81907fb8>] (nfc_dev_down) from [<819080ac>] (nfc_rfkill_set_block+0x2c/0x68 net/nfc/core.c:179) r7:82e45400 r6:00000001 r5:847b5000 r4:00000001 [<81908080>] (nfc_rfkill_set_block) from [<818c3688>] (rfkill_set_block+0x90/0x144 net/rfkill/core.c:346) r5:00000000 r4:847b4800 [<818c35f8>] (rfkill_set_block) from [<818c3c40>] (rfkill_fop_write+0x1a8/0x258 net/rfkill/core.c:1301) r7:82e45400 r6:847b4800 r5:827ec158 r4:00000008 [<818c3a98>] (rfkill_fop_write) from [<8051669c>] (vfs_write+0xac/0x44c fs/read_write.c:681) r6:00000008 r5:841ff300 r4:818c3a98 [<805165f0>] (vfs_write) from [<80516c0c>] (ksys_write+0xc4/0xf8 fs/read_write.c:736) r10:00000004 r9:82e45400 r8:8020029c r7:00000008 r6:20000080 r5:841ff300 r4:841ff301 [<80516b48>] (ksys_write) from [<80516c50>] (__do_sys_write fs/read_write.c:748 [inline]) [<80516b48>] (ksys_write) from [<80516c50>] (sys_write+0x10/0x14 fs/read_write.c:745) r7:00000004 r6:002862f0 r5:00000000 r4:00000000 [<80516c40>] (sys_write) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xeabf5fa8 to 0xeabf5ff0) 5fa0: 00000000 00000000 00000003 20000080 00000008 00000000 5fc0: 00000000 00000000 002862f0 00000004 00000000 00006364 003d0f00 76b0e0bc 5fe0: 76b0dec0 76b0deb0 00018af8 00132ec0 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 32 Comm: khungtaskd Not tainted 6.12.0-rc2-syzkaller #0 Hardware name: ARM-Versatile Express Call trace: [<81999018>] (dump_backtrace) from [<81999114>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:00000013 r5:60000093 r4:8203d3fc [<819990fc>] (show_stack) from [<819b75c0>] (__dump_stack lib/dump_stack.c:94 [inline]) [<819990fc>] (show_stack) from [<819b75c0>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:120) [<819b7550>] (dump_stack_lvl) from [<819b75e4>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:00000001 [<819b75cc>] (dump_stack) from [<819862d8>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81986178>] (nmi_cpu_backtrace) from [<81986424>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8260c5d0 r5:8261af0c r4:ffffffff [<819862f4>] (nmi_trigger_cpumask_backtrace) from [<802103e8>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:00060480 r8:828b6cf8 r7:8260c730 r6:00007f45 r5:8261b4c8 r4:8367b51c [<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358148>] (trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]) [<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358148>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]) [<802103d0>] (arch_trigger_cpumask_backtrace) from [<80358148>] (watchdog+0x498/0x5b8 kernel/hung_task.c:379) [<80357cb0>] (watchdog) from [<8026fc90>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df819e58 r8:82cd0940 r7:00000000 r6:80357cb0 r5:82e49800 r4:82fa64c0 [<8026fb8c>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdf8e1fb0 to 0xdf8e1ff8) 1fa0: 00000000 00000000 00000000 00000000 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fb8c r4:82fa64c0 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 3107 Comm: sshd Not tainted 6.12.0-rc2-syzkaller #0 Hardware name: ARM-Versatile Express PC is at do_sys_poll+0x130/0x644 fs/select.c:1032 LR is at do_sys_poll+0x444/0x644 fs/select.c:1026 pc : [<80531b98>] lr : [<80531eac>] psr: 60000013 sp : df969b78 ip : 824eb767 fp : df969f4c r10: 00000001 r9 : 00000001 r8 : b5403587 r7 : b5003500 r6 : df969c00 r5 : 00000000 r4 : 014eb768 r3 : 00000000 r2 : 00000000 r1 : 00000001 r0 : 00000000 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 83d2c740 DAC: 00000000 Call trace: [<80531a68>] (do_sys_poll) from [<80532f54>] (__do_sys_ppoll fs/select.c:1121 [inline]) [<80531a68>] (do_sys_poll) from [<80532f54>] (sys_ppoll+0xac/0xfc fs/select.c:1101) r10:0000019e r9:83e55400 r8:df969f68 r7:7ef0827c r6:00000007 r5:014eb730 r4:7ef08170 [<80532ea8>] (sys_ppoll) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67) Exception stack(0xdf969fa8 to 0xdf969ff0) 9fa0: 00000008 76fbec80 014eb730 00000007 7ef08170 7ef0827c 9fc0: 00000008 76fbec80 7ef0827c 0000019e 014eb730 7ef081fc 7ef0827c 00000000 9fe0: 7ef08170 7ef08170 76bb0f38 76bb0e90 r8:8020029c r7:0000019e r6:7ef0827c r5:76fbec80 r4:00000008