------------[ cut here ]------------ WARNING: CPU: 0 PID: 31612 at kernel/workqueue.c:4442 destroy_workqueue+0x100/0x240 kernel/workqueue.c:4442 Modules linked in: Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 31612 Comm: syz-executor.0 Not tainted 6.1.0-rc5-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<817513e4>] (dump_backtrace) from [<817514d8>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:253) r7:81cf8850 r6:822228ec r5:60000093 r4:81d06c38 [<817514c0>] (show_stack) from [<8176d188>] (__dump_stack lib/dump_stack.c:88 [inline]) [<817514c0>] (show_stack) from [<8176d188>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<8176d140>] (dump_stack_lvl) from [<8176d1ac>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:82445d14 [<8176d194>] (dump_stack) from [<81752080>] (panic+0x11c/0x360 kernel/panic.c:274) [<81751f64>] (panic) from [<80241604>] (__warn+0x98/0x1a4 kernel/panic.c:621) r3:00000001 r2:00000000 r1:00000000 r0:81cf8850 r7:80263588 [<8024156c>] (__warn) from [<8175232c>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:644) r8:00000009 r7:80263588 r6:0000115a r5:81cf9c68 r4:00000000 [<817522c8>] (warn_slowpath_fmt) from [<80263588>] (destroy_workqueue+0x100/0x240 kernel/workqueue.c:4442) r8:83880010 r7:84e7dc10 r6:84e7dc00 r5:83fb1800 r4:83fb181c [<80263488>] (destroy_workqueue) from [<816df17c>] (nci_unregister_device+0x30/0x98 net/nfc/nci/core.c:1293) r7:849cd800 r6:849cd800 r5:000e001b r4:824fa0e4 [<816df14c>] (nci_unregister_device) from [<809f57d4>] (virtual_ncidev_close+0x64/0x7c drivers/nfc/virtual_ncidev.c:166) r9:7efffd08 r8:83880010 r7:839d6450 r6:83554550 r5:000e001b r4:824fa0e4 [<809f5770>] (virtual_ncidev_close) from [<804a9b1c>] (__fput+0x84/0x264 fs/file_table.c:320) r5:000e001b r4:84882300 [<804a9a98>] (__fput) from [<804a9d78>] (____fput+0x10/0x14 fs/file_table.c:348) r9:7efffd08 r8:84bbd8c4 r7:824465dc r6:84bbd080 r5:84bbd894 r4:00000000 [<804a9d68>] (____fput) from [<8026618c>] (task_work_run+0x8c/0xb4 kernel/task_work.c:179) [<80266100>] (task_work_run) from [<8020c070>] (resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]) [<80266100>] (task_work_run) from [<8020c070>] (do_work_pending+0x420/0x524 arch/arm/kernel/signal.c:630) r9:7efffd08 r8:80200288 r7:fffffe30 r6:80200288 r5:ec20dfb0 r4:84bbd080 [<8020bc50>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x20) Exception stack(0xec20dfb0 to 0xec20dff8) dfa0: 00000000 00000002 00000000 00000003 dfc0: 00000004 01d2c4c0 00000000 00000006 00140000 000003e8 0014bfb8 00000000 dfe0: 2f460000 7ec76408 0002993c 00029df8 80000010 00000003 r10:00000006 r9:84bbd080 r8:80200288 r7:00000006 r6:00000000 r5:01d2c4c0 r4:00000004 SMP: failed to stop secondary CPUs Rebooting in 86400 seconds..