INFO: task kworker/0:0:2995 blocked for more than 450 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:0 state:D stack:0 pid:2995 tgid:2995 ppid:2 flags:0x00000000 Workqueue: events rfkill_global_led_trigger_worker Backtrace: [<8186993c>] (__schedule) from [<8186a574>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186993c>] (__schedule) from [<8186a574>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:82c16005 r9:00000000 r8:827d8d60 r7:00000002 r6:df955e8c r5:8376ec00 r4:8376ec00 [<8186a548>] (schedule) from [<8186ab40>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:8376ec00 r4:827d8d5c [<8186ab28>] (schedule_preempt_disabled) from [<8186d428>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186ab28>] (schedule_preempt_disabled) from [<8186d428>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186d140>] (__mutex_lock.constprop.0) from [<8186dcf4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:82c16005 r9:8376ec00 r8:00000000 r7:dddd1280 r6:82c16000 r5:8292e19c r4:827d8d5c [<8186dce0>] (__mutex_lock_slowpath) from [<8186dd34>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8186dcf8>] (mutex_lock) from [<81779d18>] (rfkill_global_led_trigger_worker+0x1c/0xc0 net/rfkill/core.c:182) [<81779cfc>] (rfkill_global_led_trigger_worker) from [<80266d90>] (process_one_work+0x19c/0x4a4 kernel/workqueue.c:2633) r5:8292e19c r4:844db780 [<80266bf4>] (process_one_work) from [<802672d8>] (process_scheduled_works kernel/workqueue.c:2706 [inline]) [<80266bf4>] (process_one_work) from [<802672d8>] (worker_thread+0x240/0x48c kernel/workqueue.c:2787) r10:61c88647 r9:8376ec00 r8:dddd12a0 r7:82604d40 r6:dddd1280 r5:844db7ac r4:844db780 [<80267098>] (worker_thread) from [<8026e5b4>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df9ede90 r8:8446e440 r7:844db780 r6:80267098 r5:8376ec00 r4:84464a80 [<8026e4b0>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf955fb0 to 0xdf955ff8) 5fa0: 00000000 00000000 00000000 00000000 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026e4b0 r4:84464a80 INFO: task syz-executor247:3586 blocked for more than 450 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor247 state:D stack:0 pid:3586 tgid:3586 ppid:2999 flags:0x00000004 Backtrace: [<8186993c>] (__schedule) from [<8186a574>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186993c>] (__schedule) from [<8186a574>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:000000f8 r9:00000000 r8:827d8d60 r7:00000002 r6:dfc9de04 r5:8372ec00 r4:8372ec00 [<8186a548>] (schedule) from [<8186ab40>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:8372ec00 r4:827d8d5c [<8186ab28>] (schedule_preempt_disabled) from [<8186d428>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186ab28>] (schedule_preempt_disabled) from [<8186d428>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186d140>] (__mutex_lock.constprop.0) from [<8186dcf4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:000000f8 r9:00000000 r8:82e67310 r7:8427c000 r6:8427c024 r5:84490238 r4:84490000 [<8186dce0>] (__mutex_lock_slowpath) from [<8186dd34>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8186dcf8>] (mutex_lock) from [<8177a7b8>] (rfkill_unregister+0x5c/0xc4 net/rfkill/core.c:1149) [<8177a75c>] (rfkill_unregister) from [<817be858>] (nfc_unregister_device+0x44/0x118 net/nfc/core.c:1167) r5:8449105c r4:84491000 [<817be814>] (nfc_unregister_device) from [<817cb624>] (nci_unregister_device+0x94/0x98 net/nfc/nci/core.c:1308) r5:8427c024 r4:8427c024 [<817cb590>] (nci_unregister_device) from [<80a99b8c>] (virtual_ncidev_close+0x18/0x30 drivers/nfc/virtual_ncidev.c:168) r9:00000000 r8:82e67310 r7:83902a80 r6:8302fe10 r5:000e001b r4:846cb340 [<80a99b74>] (virtual_ncidev_close) from [<804e88f4>] (__fput+0x84/0x2d4 fs/file_table.c:376) r5:000e001b r4:84218480 [<804e8870>] (__fput) from [<804e8bc0>] (____fput+0x10/0x14 fs/file_table.c:404) r9:00000000 r8:82858628 r7:8372ec00 r6:8372f474 r5:8372f444 r4:00000000 [<804e8bb0>] (____fput) from [<8026ac4c>] (task_work_run+0x90/0xb8 kernel/task_work.c:180) [<8026abbc>] (task_work_run) from [<8024a130>] (exit_task_work include/linux/task_work.h:38 [inline]) [<8026abbc>] (task_work_run) from [<8024a130>] (do_exit+0x30c/0xa74 kernel/exit.c:871) r9:00000000 r8:dfc9df50 r7:8372f470 r6:8341157c r5:83411500 r4:8372ec00 [<80249e24>] (do_exit) from [<8024aa58>] (do_group_exit+0x40/0x8c kernel/exit.c:1020) r7:82cfa4c0 [<8024aa18>] (do_group_exit) from [<8024aabc>] (__do_sys_exit_group kernel/exit.c:1031 [inline]) [<8024aa18>] (do_group_exit) from [<8024aabc>] (pid_child_should_wake+0x0/0x6c kernel/exit.c:1029) r7:000000f8 r4:00000001 [<8024aaa4>] (sys_exit_group) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xdfc9dfa8 to 0xdfc9dff0) dfa0: 00000001 0008b3ac 00000000 00000000 00000000 00000000 dfc0: 00000001 0008b3ac 00000000 000000f8 0008b8d0 00089158 00089158 0008b8d0 dfe0: 2b8c334d 7e926c28 00016f98 0002bda4 INFO: task syz-executor247:3591 blocked for more than 450 seconds. Not tainted 6.7.0-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor247 state:D stack:0 pid:3591 tgid:3591 ppid:3000 flags:0x00000005 Backtrace: [<8186993c>] (__schedule) from [<8186a574>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186993c>] (__schedule) from [<8186a574>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:00000004 r9:00000000 r8:84491060 r7:00000002 r6:dfc41de4 r5:83d21800 r4:83d21800 [<8186a548>] (schedule) from [<8186ab40>] (schedule_preempt_disabled+0x18/0x24 kernel/sched/core.c:6874) r5:83d21800 r4:8449105c [<8186ab28>] (schedule_preempt_disabled) from [<8186d428>] (__mutex_lock_common kernel/locking/mutex.c:684 [inline]) [<8186ab28>] (schedule_preempt_disabled) from [<8186d428>] (__mutex_lock.constprop.0+0x2e8/0xae0 kernel/locking/mutex.c:752) [<8186d140>] (__mutex_lock.constprop.0) from [<8186dcf4>] (__mutex_lock_slowpath+0x14/0x18 kernel/locking/mutex.c:1040) r10:00000004 r9:20000040 r8:00000000 r7:83d21800 r6:00000001 r5:8449105c r4:84491000 [<8186dce0>] (__mutex_lock_slowpath) from [<8186dd34>] (mutex_lock+0x3c/0x40 kernel/locking/mutex.c:286) [<8186dcf8>] (mutex_lock) from [<817bf098>] (device_lock include/linux/device.h:992 [inline]) [<8186dcf8>] (mutex_lock) from [<817bf098>] (nfc_dev_down+0x20/0xc8 net/nfc/core.c:143) [<817bf078>] (nfc_dev_down) from [<817bf16c>] (nfc_rfkill_set_block+0x2c/0x68 net/nfc/core.c:179) r7:83d21800 r6:00000001 r5:84491000 r4:00000001 [<817bf140>] (nfc_rfkill_set_block) from [<8177aaf8>] (rfkill_set_block+0x90/0x144 net/rfkill/core.c:346) r5:00000001 r4:84490000 [<8177aa68>] (rfkill_set_block) from [<8177b090>] (rfkill_fop_write+0x18c/0x23c net/rfkill/core.c:1305) r7:83d21800 r6:84490000 r5:827d8d70 r4:00000008 [<8177af04>] (rfkill_fop_write) from [<804e6f80>] (vfs_write+0xac/0x3dc fs/read_write.c:588) r6:00000008 r5:846f1540 r4:8177af04 [<804e6ed4>] (vfs_write) from [<804e7480>] (ksys_write+0xc4/0xf8 fs/read_write.c:643) r10:00000004 r9:83d21800 r8:80200288 r7:00000008 r6:20000040 r5:846f1540 r4:846f1540 [<804e73bc>] (ksys_write) from [<804e74c4>] (__do_sys_write fs/read_write.c:655 [inline]) [<804e73bc>] (ksys_write) from [<804e74c4>] (sys_write+0x10/0x14 fs/read_write.c:652) r7:00000004 r6:7ec1b160 r5:00000000 r4:ffffffff [<804e74b4>] (sys_write) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xdfc41fa8 to 0xdfc41ff0) 1fa0: ffffffff 00000000 00000004 20000040 00000008 00000000 1fc0: ffffffff 00000000 7ec1b160 00000004 000f4240 00000000 7e926c6c 00003a97 1fe0: 7e926c58 7e926c48 000106d4 0002ea20 NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.7.0-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<81848404>] (dump_backtrace) from [<81848500>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:00000013 r5:60000093 r4:81fc53b8 [<818484e8>] (show_stack) from [<81865ad8>] (__dump_stack lib/dump_stack.c:88 [inline]) [<818484e8>] (show_stack) from [<81865ad8>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<81865a90>] (dump_stack_lvl) from [<81865afc>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:00000001 [<81865ae4>] (dump_stack) from [<818357b8>] (nmi_cpu_backtrace+0x160/0x17c lib/nmi_backtrace.c:113) [<81835658>] (nmi_cpu_backtrace) from [<81835904>] (nmi_trigger_cpumask_backtrace+0x130/0x1d8 lib/nmi_backtrace.c:62) r7:00000000 r6:8260c494 r5:8261a7d8 r4:ffffffff [<818357d4>] (nmi_trigger_cpumask_backtrace) from [<802104f4>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:851) r9:827df51f r8:8289ceb8 r7:8260c5ec r6:00007f65 r5:8261adc8 r4:83c5082c [<802104dc>] (arch_trigger_cpumask_backtrace) from [<80347a90>] (trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]) [<802104dc>] (arch_trigger_cpumask_backtrace) from [<80347a90>] (check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]) [<802104dc>] (arch_trigger_cpumask_backtrace) from [<80347a90>] (watchdog+0x48c/0x59c kernel/hung_task.c:379) [<80347604>] (watchdog) from [<8026e5b4>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:df819e58 r8:82ea1480 r7:00000000 r6:80347604 r5:82ee9800 r4:82f46800 [<8026e4b0>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdf8d9fb0 to 0xdf8d9ff8) 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 r5:8026e4b0 r4:82f46800 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2803 Comm: klogd Not tainted 6.7.0-syzkaller #0 Hardware name: ARM-Versatile Express PC is at kmap_local_sched_in kernel/sched/core.c:5180 [inline] PC is at finish_task_switch+0x8c/0x294 kernel/sched/core.c:5282 LR is at __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] LR is at _raw_spin_unlock+0x2c/0x50 kernel/locking/spinlock.c:186 pc : [<8027b1b8>] lr : [<81872a50>] psr: 20000013 sp : ec439cb0 ip : ec439ca0 fp : ec439cf4 r10: 00000001 r9 : 8374a400 r8 : 83749800 r7 : a3ec5f10 r6 : 81869d40 r5 : ddde4600 r4 : 00000000 r3 : 8374a400 r2 : 00000001 r1 : 81fc53b8 r0 : 00000001 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 843e3640 DAC: 00000000 Backtrace: [<8027b12c>] (finish_task_switch) from [<81869d40>] (context_switch kernel/sched/core.c:5403 [inline]) [<8027b12c>] (finish_task_switch) from [<81869d40>] (__schedule+0x404/0xc0c kernel/sched/core.c:6727) r10:00000000 r9:83413300 r8:32657fe9 r7:a3ec5f10 r6:8374a400 r5:ddde4600 r4:83749800 [<8186993c>] (__schedule) from [<8186a574>] (__schedule_loop kernel/sched/core.c:6802 [inline]) [<8186993c>] (__schedule) from [<8186a574>] (schedule+0x2c/0xb8 kernel/sched/core.c:6817) r10:00000000 r9:8374a400 r8:8340cc00 r7:8374a400 r6:8340da80 r5:00000000 r4:8374a400 [<8186a548>] (schedule) from [<81871b1c>] (schedule_timeout+0xe4/0x114 kernel/time/timer.c:2159) r5:00000000 r4:7fffffff [<81871a38>] (schedule_timeout) from [<816028fc>] (unix_wait_for_peer+0xcc/0xd8 net/unix/af_unix.c:1474) r7:8340d800 r6:8340da80 r5:8340d800 r4:7fffffff [<81602830>] (unix_wait_for_peer) from [<816079c8>] (unix_dgram_sendmsg+0x97c/0x9e8 net/unix/af_unix.c:2078) r6:0000008c r5:83396280 r4:ec439e98 [<8160704c>] (unix_dgram_sendmsg) from [<8135e940>] (sock_sendmsg_nosec net/socket.c:730 [inline]) [<8160704c>] (unix_dgram_sendmsg) from [<8135e940>] (__sock_sendmsg+0x44/0x78 net/socket.c:745) r10:00000121 r9:8374a400 r8:00000003 r7:83396280 r6:83396280 r5:ec439e98 r4:00000000 [<8135e8fc>] (__sock_sendmsg) from [<81360c50>] (__sys_sendto+0x108/0x14c net/socket.c:2191) r7:83396280 r6:00000000 r5:00004000 r4:00000000 [<81360b48>] (__sys_sendto) from [<81360cd8>] (__do_sys_send net/socket.c:2213 [inline]) [<81360b48>] (__sys_sendto) from [<81360cd8>] (sys_send+0x20/0x28 net/socket.c:2210) r8:80200288 r7:00000121 r6:76fe85a0 r5:76fe85a0 r4:01ad51a8 [<81360cb8>] (sys_send) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xec439fa8 to 0xec439ff0) 9fa0: 01ad51a8 76fe85a0 00000003 01adc758 0000008c 00004000 9fc0: 01ad51a8 76fe85a0 76fe85a0 00000121 00000000 00000013 76eb0e60 01adc75b 9fe0: 00000000 7ed52bc8 76e38460 76e3d918