INFO: task kworker/1:0:25 blocked for more than 143 seconds. Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:21552 pid:25 tgid:25 ppid:2 flags:0x00004000 Workqueue: events rfkill_global_led_trigger_worker Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __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:3248 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329 worker_thread+0x86d/0xd50 kernel/workqueue.c:3409 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 udevd:4545 blocked for more than 143 seconds. Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:udevd state:D stack:23376 pid:4545 tgid:4545 ppid:1 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __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] uevent_show+0x17d/0x340 drivers/base/core.c:2743 dev_attr_show+0x55/0xc0 drivers/base/core.c:2437 sysfs_kf_seq_show+0x331/0x4c0 fs/sysfs/file.c:59 seq_read_iter+0x445/0xd60 fs/seq_file.c:230 new_sync_read fs/read_write.c:395 [inline] vfs_read+0x9bd/0xbc0 fs/read_write.c:476 ksys_read+0x1a0/0x2c0 fs/read_write.c:619 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: 0033:0x7fcefd916b6a RSP: 002b:00007fffc047cab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00005631a1f5f0f0 RCX: 00007fcefd916b6a RDX: 0000000000001000 RSI: 00005631a2014440 RDI: 000000000000000c RBP: 00005631a1f5f0f0 R08: 000000000000000c R09: 0000000000000000 R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000003fff R14: 00007fffc047cf98 R15: 000000000000000a INFO: task syz-executor.2:5405 blocked for more than 143 seconds. Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:18928 pid:5405 tgid:5405 ppid:1 flags:0x20000006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 misc_open+0x5c/0x390 drivers/char/misc.c:129 chrdev_open+0x5b0/0x630 fs/char_dev.c:414 do_dentry_open+0x970/0x1450 fs/open.c:955 vfs_open+0x3e/0x330 fs/open.c:1086 do_open fs/namei.c:3654 [inline] path_openat+0x2c01/0x35f0 fs/namei.c:3813 do_filp_open+0x235/0x490 fs/namei.c:3840 do_sys_openat2+0x13e/0x1d0 fs/open.c:1413 do_sys_open fs/open.c:1428 [inline] __do_compat_sys_openat fs/open.c:1488 [inline] __se_compat_sys_openat fs/open.c:1486 [inline] __ia32_compat_sys_openat+0x23f/0x290 fs/open.c:1486 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf72e8579 RSP: 002b:00000000fff72c50 EFLAGS: 00000206 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000f739ffae RDX: 0000000000000002 RSI: 0000000000000000 RDI: 00000000f743dff4 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.0:5408 blocked for more than 144 seconds. Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:19328 pid:5408 tgid:5408 ppid:1 flags:0x20000006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 misc_open+0x5c/0x390 drivers/char/misc.c:129 chrdev_open+0x5b0/0x630 fs/char_dev.c:414 do_dentry_open+0x970/0x1450 fs/open.c:955 vfs_open+0x3e/0x330 fs/open.c:1086 do_open fs/namei.c:3654 [inline] path_openat+0x2c01/0x35f0 fs/namei.c:3813 do_filp_open+0x235/0x490 fs/namei.c:3840 do_sys_openat2+0x13e/0x1d0 fs/open.c:1413 do_sys_open fs/open.c:1428 [inline] __do_compat_sys_openat fs/open.c:1488 [inline] __se_compat_sys_openat fs/open.c:1486 [inline] __ia32_compat_sys_openat+0x23f/0x290 fs/open.c:1486 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf72ad579 RSP: 002b:00000000ffe35000 EFLAGS: 00000206 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000f7364fae RDX: 0000000000000002 RSI: 0000000000000000 RDI: 00000000f7402ff4 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.5:5411 blocked for more than 144 seconds. Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:18768 pid:5411 tgid:5411 ppid:1 flags:0x20000006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 misc_open+0x5c/0x390 drivers/char/misc.c:129 chrdev_open+0x5b0/0x630 fs/char_dev.c:414 do_dentry_open+0x970/0x1450 fs/open.c:955 vfs_open+0x3e/0x330 fs/open.c:1086 do_open fs/namei.c:3654 [inline] path_openat+0x2c01/0x35f0 fs/namei.c:3813 do_filp_open+0x235/0x490 fs/namei.c:3840 do_sys_openat2+0x13e/0x1d0 fs/open.c:1413 do_sys_open fs/open.c:1428 [inline] __do_compat_sys_openat fs/open.c:1488 [inline] __se_compat_sys_openat fs/open.c:1486 [inline] __ia32_compat_sys_openat+0x23f/0x290 fs/open.c:1486 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf72b1579 RSP: 002b:00000000ffd10630 EFLAGS: 00000206 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000f7368fae RDX: 0000000000000002 RSI: 0000000000000000 RDI: 00000000f7406ff4 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.3:5415 blocked for more than 144 seconds. Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:19568 pid:5415 tgid:5415 ppid:1 flags:0x20000006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 misc_open+0x5c/0x390 drivers/char/misc.c:129 chrdev_open+0x5b0/0x630 fs/char_dev.c:414 do_dentry_open+0x970/0x1450 fs/open.c:955 vfs_open+0x3e/0x330 fs/open.c:1086 do_open fs/namei.c:3654 [inline] path_openat+0x2c01/0x35f0 fs/namei.c:3813 do_filp_open+0x235/0x490 fs/namei.c:3840 do_sys_openat2+0x13e/0x1d0 fs/open.c:1413 do_sys_open fs/open.c:1428 [inline] __do_compat_sys_openat fs/open.c:1488 [inline] __se_compat_sys_openat fs/open.c:1486 [inline] __ia32_compat_sys_openat+0x23f/0x290 fs/open.c:1486 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf72ed579 RSP: 002b:00000000fff26600 EFLAGS: 00000206 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 00000000f73a4fae RDX: 0000000000000002 RSI: 0000000000000000 RDI: 00000000f7442ff4 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.1:5598 blocked for more than 145 seconds. Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:24640 pid:5598 tgid:5598 ppid:5402 flags:0x20004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __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 __do_sys_close fs/open.c:1563 [inline] __se_sys_close fs/open.c:1548 [inline] __ia32_sys_close+0x7f/0x110 fs/open.c:1548 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7303579 RSP: 002b:00000000ffbb03c0 EFLAGS: 00000206 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000005830d400 RDX: 0000000000000000 RSI: 00000000f7458ff4 RDI: 000000000001864f RBP: 00000000f74820c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.1:5599 blocked for more than 145 seconds. Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:23352 pid:5599 tgid:5598 ppid:5402 flags:0x20004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __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_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7303579 RSP: 002b:00000000f66fd5ac EFLAGS: 00000206 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000080 RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.4:5612 blocked for more than 145 seconds. Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:25312 pid:5612 tgid:5611 ppid:5416 flags:0x20004006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 rfkill_register+0x34/0x8c0 net/rfkill/core.c:1075 nfc_register_device+0x148/0x320 net/nfc/core.c:1132 nci_register_device+0x7c2/0x900 net/nfc/nci/core.c:1266 virtual_ncidev_open+0x13c/0x1b0 drivers/nfc/virtual_ncidev.c:157 misc_open+0x313/0x390 drivers/char/misc.c:165 chrdev_open+0x5b0/0x630 fs/char_dev.c:414 do_dentry_open+0x970/0x1450 fs/open.c:955 vfs_open+0x3e/0x330 fs/open.c:1086 do_open fs/namei.c:3654 [inline] path_openat+0x2c01/0x35f0 fs/namei.c:3813 do_filp_open+0x235/0x490 fs/namei.c:3840 do_sys_openat2+0x13e/0x1d0 fs/open.c:1413 do_sys_open fs/open.c:1428 [inline] __do_compat_sys_openat fs/open.c:1488 [inline] __se_compat_sys_openat fs/open.c:1486 [inline] __ia32_compat_sys_openat+0x23f/0x290 fs/open.c:1486 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf72b2579 RSP: 002b:00000000f66ac5ac EFLAGS: 00000206 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 0000000020000080 RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.4:5616 blocked for more than 145 seconds. Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.4 state:D stack:27328 pid:5616 tgid:5611 ppid:5416 flags:0x20000006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752 misc_open+0x5c/0x390 drivers/char/misc.c:129 chrdev_open+0x5b0/0x630 fs/char_dev.c:414 do_dentry_open+0x970/0x1450 fs/open.c:955 vfs_open+0x3e/0x330 fs/open.c:1086 do_open fs/namei.c:3654 [inline] path_openat+0x2c01/0x35f0 fs/namei.c:3813 do_filp_open+0x235/0x490 fs/namei.c:3840 do_sys_openat2+0x13e/0x1d0 fs/open.c:1413 do_sys_open fs/open.c:1428 [inline] __do_compat_sys_openat fs/open.c:1488 [inline] __se_compat_sys_openat fs/open.c:1486 [inline] __ia32_compat_sys_openat+0x23f/0x290 fs/open.c:1486 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf72b2579 RSP: 002b:00000000f668b5ac EFLAGS: 00000206 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 0000000020000040 RDX: 0000000000000801 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings Showing all locks held in the system: 3 locks held by kworker/1:0/25: #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3223 [inline] #0: ffff888015080948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3329 #1: ffffc900001f7d00 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] #1: ffffc900001f7d00 ((work_completion)(&rfkill_global_led_trigger_work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffffffff8f8bb9a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_global_led_trigger_worker+0x27/0xd0 net/rfkill/core.c:182 1 lock held by khungtaskd/30: #0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #0: ffffffff8e333f20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614 5 locks held by kworker/u8:2/35: #0: ffff8880b953e798 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559 #1: ffffc90000ab7d00 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3224 [inline] #1: ffffc90000ab7d00 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3329 #2: ffff8880b942a718 (&base->lock){-.-.}-{2:2}, at: __mod_timer+0x744/0xeb0 kernel/time/timer.c:1164 #3: ffffffff94a67508 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x16d/0x510 lib/debugobjects.c:708 #4: ffffffff8e1e3688 (text_mutex){+.+.}-{3:3}, at: arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:145 4 locks held by udevd/4545: #0: ffff88801bbb70a0 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb7/0xd60 fs/seq_file.c:182 #1: ffff88807d96e888 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154 #2: ffff88807ab01f08 (kn->active#5){.+.+}-{0:0}, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155 #3: ffff88807d248100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #3: ffff88807d248100 (&dev->mutex){....}-{3:3}, at: uevent_show+0x17d/0x340 drivers/base/core.c:2743 2 locks held by getty/4845: #0: ffff88802a8170a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc90002f0e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211 1 lock held by syz-executor.2/5405: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.0/5408: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.5/5411: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.3/5415: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 2 locks held by syz-executor.1/5598: #0: ffff88807d941100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #0: ffff88807d941100 (&dev->mutex){....}-{3:3}, at: nfc_unregister_device+0x63/0x2a0 net/nfc/core.c:1165 #1: ffffffff8f8bb9a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_unregister+0xd0/0x230 net/rfkill/core.c:1149 2 locks held by syz-executor.1/5599: #0: ffffffff8f8bb9a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_fop_write+0x1a9/0x790 net/rfkill/core.c:1297 #1: ffff88807d941100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #1: ffff88807d941100 (&dev->mutex){....}-{3:3}, at: nfc_dev_down net/nfc/core.c:143 [inline] #1: ffff88807d941100 (&dev->mutex){....}-{3:3}, at: nfc_rfkill_set_block+0x50/0x310 net/nfc/core.c:179 3 locks held by syz-executor.4/5612: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 #1: ffff88807d248100 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #1: ffff88807d248100 (&dev->mutex){....}-{3:3}, at: nfc_register_device+0x9c/0x320 net/nfc/core.c:1128 #2: ffffffff8f8bb9a8 (rfkill_global_mutex){+.+.}-{3:3}, at: rfkill_register+0x34/0x8c0 net/rfkill/core.c:1075 1 lock held by syz-executor.4/5616: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.1/5944: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.4/5945: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.2/5949: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.0/5951: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.3/5952: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.5/5953: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.1/5956: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.4/5958: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.2/5960: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.3/5963: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.5/5965: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 1 lock held by syz-executor.0/5966: #0: ffffffff8eb2f6e8 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x5c/0x390 drivers/char/misc.c:129 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 30 Comm: khungtaskd Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 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+0xfde/0x1020 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 PID: 1110 Comm: kworker/u8:7 Not tainted 6.10.0-rc6-syzkaller-00069-g795c58e4c7fc #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 Workqueue: bat_events batadv_nc_worker RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:61 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:130 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x4f/0x290 mm/kasan/generic.c:189 Code: 89 fd 48 c1 ed 2f 81 fd fe ff 01 00 0f 86 43 02 00 00 48 89 fb 48 c1 eb 03 49 ba 00 00 00 00 00 fc ff df 4e 8d 1c 13 49 ff c8 <4d> 89 c1 49 c1 e9 03 49 be 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c RSP: 0018:ffffc9000482f9f0 EFLAGS: 00000296 RAX: 0000000000000001 RBX: 1ffffffff1f5a9b5 RCX: ffffffff81728e40 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fad4da8 RBP: 000000000001ffff R08: ffffffff8fad4daf R09: 1ffffffff25f4eb0 R10: dffffc0000000000 R11: fffffbfff1f5a9b5 R12: 1ffff92000905f50 R13: ffffffff8b5075eb R14: ffff88807d9a2cc0 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e9425b6680 CR3: 000000000e132000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: instrument_atomic_read include/linux/instrumented.h:68 [inline] _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline] cpumask_test_cpu include/linux/cpumask.h:571 [inline] cpu_online include/linux/cpumask.h:1181 [inline] trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0xb0/0x9f0 kernel/locking/lockdep.c:5765 rcu_lock_release include/linux/rcupdate.h:339 [inline] rcu_read_unlock include/linux/rcupdate.h:812 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline] batadv_nc_worker+0x28b/0x610 net/batman-adv/network-coding.c:719 process_one_work kernel/workqueue.c:3248 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3329 worker_thread+0x86d/0xd50 kernel/workqueue.c:3409 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