INFO: task kworker/1:0:3003 blocked for more than 450 seconds. Not tainted 6.8.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:0 pid:3003 tgid:3003 ppid:2 flags:0x00000000 Workqueue: events rfkill_op_handler Backtrace: [<81884e90>] (__schedule) from [<81885acc>] (__schedule_loop kernel/sched/core.c:6813 [inline]) [<81884e90>] (__schedule) from [<81885acc>] (schedule+0x2c/0xfc kernel/sched/core.c:6828) r10:82c16215 r9:00000000 r8:8439e860 r7:00000002 r6:df999de4 r5:82e36000 r4:82e36000 [<81885aa0>] (schedule) from [<818860dc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6885) r5:82e36000 r4:8439e85c [<818860c4>] (schedule_preempt_disabled) from [<818889bc>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818860c4>] (schedule_preempt_disabled) from [<818889bc>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818886d4>] (__mutex_lock.constprop.0) from [<81889288>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16215 r9:82e36000 r8:00000180 r7:00000000 r6:00000001 r5:8439e85c r4:8439e800 [<81889274>] (__mutex_lock_slowpath) from [<818892c8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8188928c>] (mutex_lock) from [<817d5f34>] (device_lock include/linux/device.h:990 [inline]) [<8188928c>] (mutex_lock) from [<817d5f34>] (nfc_dev_down+0x20/0xc8 net/nfc/core.c:143) [<817d5f14>] (nfc_dev_down) from [<817d6008>] (nfc_rfkill_set_block+0x2c/0x68 net/nfc/core.c:179) r7:00000000 r6:00000001 r5:8439e800 r4:00000001 [<817d5fdc>] (nfc_rfkill_set_block) from [<817918ac>] (rfkill_set_block+0x90/0x144 net/rfkill/core.c:346) r5:00000001 r4:8439dc00 [<8179181c>] (rfkill_set_block) from [<817926d0>] (rfkill_epo+0x54/0x9c net/rfkill/core.c:466) r7:00000000 r6:8290fe0c r5:827d9660 r4:8439dc00 [<8179267c>] (rfkill_epo) from [<8179295c>] (__rfkill_handle_global_op net/rfkill/input.c:60 [inline]) [<8179267c>] (rfkill_epo) from [<8179295c>] (rfkill_op_handler+0x168/0x194 net/rfkill/input.c:108) r5:8290fe0c r4:00000000 [<817927f4>] (rfkill_op_handler) from [<802662fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r8:00000180 r7:ddde3f00 r6:82c16200 r5:827d9778 r4:841e9680 [<80266144>] (process_one_work) from [<80267020>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266144>] (process_one_work) from [<80267020>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:82e36000 r9:841e96ac r8:61c88647 r7:ddde3f20 r6:82604d40 r5:ddde3f00 r4:841e9680 [<80266e34>] (worker_thread) from [<8026fd30>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9ade90 r8:84212d40 r7:841e9680 r6:80266e34 r5:82e36000 r4:8424c400 [<8026fc2c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf999fb0 to 0xdf999ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fc2c r4:8424c400 INFO: task kworker/1:3:6673 blocked for more than 450 seconds. Not tainted 6.8.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:3 state:D stack:0 pid:6673 tgid:6673 ppid:2 flags:0x00000000 Workqueue: events rfkill_global_led_trigger_worker Backtrace: [<81884e90>] (__schedule) from [<81885acc>] (__schedule_loop kernel/sched/core.c:6813 [inline]) [<81884e90>] (__schedule) from [<81885acc>] (schedule+0x2c/0xfc kernel/sched/core.c:6828) r10:82c16205 r9:00000000 r8:827d9650 r7:00000002 r6:eb9f1e74 r5:836d2400 r4:836d2400 [<81885aa0>] (schedule) from [<818860dc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6885) r5:836d2400 r4:827d964c [<818860c4>] (schedule_preempt_disabled) from [<818889bc>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818860c4>] (schedule_preempt_disabled) from [<818889bc>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818886d4>] (__mutex_lock.constprop.0) from [<81889288>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16205 r9:836d2400 r8:00000180 r7:ddde3f00 r6:82c16200 r5:8290fddc r4:827d964c [<81889274>] (__mutex_lock_slowpath) from [<818892c8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8188928c>] (mutex_lock) from [<81790acc>] (rfkill_global_led_trigger_worker+0x1c/0xc0 net/rfkill/core.c:182) [<81790ab0>] (rfkill_global_led_trigger_worker) from [<802662fc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r5:8290fddc r4:8410dd00 [<80266144>] (process_one_work) from [<80267020>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266144>] (process_one_work) from [<80267020>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:836d2400 r9:8410dd2c r8:61c88647 r7:ddde3f20 r6:82604d40 r5:ddde3f00 r4:8410dd00 [<80266e34>] (worker_thread) from [<8026fd30>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9ade90 r8:84637440 r7:8410dd00 r6:80266e34 r5:836d2400 r4:84637980 [<8026fc2c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xeb9f1fb0 to 0xeb9f1ff8) 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 r5:8026fc2c r4:84637980 INFO: task syz-executor340:8265 blocked for more than 450 seconds. Not tainted 6.8.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor340 state:D stack:0 pid:8265 tgid:8265 ppid:3007 flags:0x00000004 Backtrace: [<81884e90>] (__schedule) from [<81885acc>] (__schedule_loop kernel/sched/core.c:6813 [inline]) [<81884e90>] (__schedule) from [<81885acc>] (schedule+0x2c/0xfc kernel/sched/core.c:6828) r10:000000f8 r9:00000000 r8:827d9650 r7:00000002 r6:ed019e04 r5:8413c800 r4:8413c800 [<81885aa0>] (schedule) from [<818860dc>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6885) r5:8413c800 r4:827d964c [<818860c4>] (schedule_preempt_disabled) from [<818889bc>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<818860c4>] (schedule_preempt_disabled) from [<818889bc>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<818886d4>] (__mutex_lock.constprop.0) from [<81889288>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:000000f8 r9:00000000 r8:82ca6b50 r7:84114800 r6:84114824 r5:8439de38 r4:8439dc00 [<81889274>] (__mutex_lock_slowpath) from [<818892c8>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8188928c>] (mutex_lock) from [<8179156c>] (rfkill_unregister+0x5c/0xc4 net/rfkill/core.c:1149) [<81791510>] (rfkill_unregister) from [<817d56f4>] (nfc_unregister_device+0x44/0x118 net/nfc/core.c:1167) r5:8439e85c r4:8439e800 [<817d56b0>] (nfc_unregister_device) from [<817e24f0>] (nci_unregister_device+0x94/0x98 net/nfc/nci/core.c:1312) r5:84114824 r4:84114824 [<817e245c>] (nci_unregister_device) from [<80a9bdac>] (virtual_ncidev_close+0x18/0x30 drivers/nfc/virtual_ncidev.c:168) r9:00000000 r8:82ca6b50 r7:8385d2a0 r6:8301e900 r5:000e001b r4:84256b80 [<80a9bd94>] (virtual_ncidev_close) from [<804f64a4>] (__fput+0x84/0x2d4 fs/file_table.c:422) r5:000e001b r4:82eaab40 [<804f6420>] (__fput) from [<804f6770>] (____fput+0x10/0x14 fs/file_table.c:450) r9:00000000 r8:8285862c r7:8413c800 r6:8413d07c r5:8413d04c r4:82eaad80 [<804f6760>] (____fput) from [<8026c38c>] (task_work_run+0x90/0xb8 kernel/task_work.c:180) [<8026c2fc>] (task_work_run) from [<8024a1fc>] (exit_task_work include/linux/task_work.h:38 [inline]) [<8026c2fc>] (task_work_run) from [<8024a1fc>] (do_exit+0x310/0xa84 kernel/exit.c:878) r9:00000000 r8:ed019f50 r7:8401e77c r6:8413d078 r5:8401e700 r4:8413c800 [<80249eec>] (do_exit) from [<8024ab3c>] (do_group_exit+0x40/0x8c kernel/exit.c:1027) r7:84011a40 [<8024aafc>] (do_group_exit) from [<8024aba0>] (__do_sys_exit_group kernel/exit.c:1038 [inline]) [<8024aafc>] (do_group_exit) from [<8024aba0>] (pid_child_should_wake+0x0/0x6c kernel/exit.c:1036) r7:000000f8 r4:00000001 [<8024ab88>] (sys_exit_group) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xed019fa8 to 0xed019ff0) 9fa0: 00000001 0008b3b4 00000000 00000000 00000000 00000000 9fc0: 00000001 0008b3b4 00000000 000000f8 0008b8d0 00089158 00089158 0008b8d0 9fe0: f02c1e5e 7ef2bc40 000173c8 0002bfd0 NMI backtrace for cpu 0 CPU: 0 PID: 31 Comm: khungtaskd Not tainted 6.8.0-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<81863744>] (dump_backtrace) from [<81863840>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000013 r5:60000093 r4:81fc0f0c [<81863828>] (show_stack) from [<81880fc4>] (__dump_stack lib/dump_stack.c:88 [inline]) [<81863828>] (show_stack) from [<81880fc4>] (dump_stack_lvl+0x70/0x7c lib/dump_stack.c:114) [<81880f54>] (dump_stack_lvl) from [<81880fe8>] (dump_stack+0x18/0x1c lib/dump_stack.c:123) r5:00000000 r4:00000001 [<81880fd0>] (dump_stack) from [<81850b1c>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<818509bc>] (nmi_cpu_backtrace) from [<81850c68>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8260c590 r5:8261a88c r4:ffffffff [<81850b38>] (nmi_trigger_cpumask_backtrace) from [<80210574>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:8260c6f4 r8:00024000 r7:8289cfe0 r6:00007f6a r5:8364be04 r4:84019a24 [<8021055c>] (arch_trigger_cpumask_backtrace) from [<8034df78>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<8034df78>] (check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]) [<8021055c>] (arch_trigger_cpumask_backtrace) from [<8034df78>] (watchdog+0x480/0x594 kernel/hung_task.c:380) [<8034daf8>] (watchdog) from [<8026fd30>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82ea0440 r7:00000000 r6:8034daf8 r5:82ee9800 r4:82f4a0c0 [<8026fc2c>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf8ddfb0 to 0xdf8ddff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026fc2c r4:82f4a0c0 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2810 Comm: klogd Not tainted 6.8.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at 0x76d03810 LR is at 0x76cfd7ac pc : [<76d03810>] lr : [<76cfd7ac>] psr: 20000010 sp : 7ee6fbb0 ip : 00000000 fp : 76eba21a r10: 76de0e60 r9 : 00000003 r8 : 76de0e60 r7 : 02069b18 r6 : 020621a8 r5 : 02069b18 r4 : 020621a8 r3 : 02069b18 r2 : 00002000 r1 : 00002000 r0 : 020621a8 Flags: nzCv IRQs on FIQs on Mode USER_32 ISA ARM Segment none Control: 30c5387d Table: 8420b8c0 DAC: 00000000 Backtrace: invalid frame pointer 0x76eba21a