------------[ cut here ]------------ WARNING: CPU: 0 PID: 14541 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: 14541 Comm: syz-executor.1 Not tainted 6.1.0-rc6-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<81751604>] (dump_backtrace) from [<817516f8>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:253) r7:81cf8970 r6:822228ec r5:60000093 r4:81d06d58 [<817516e0>] (show_stack) from [<8176d3c0>] (__dump_stack lib/dump_stack.c:88 [inline]) [<817516e0>] (show_stack) from [<8176d3c0>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<8176d378>] (dump_stack_lvl) from [<8176d3e4>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:82445d14 [<8176d3cc>] (dump_stack) from [<817522a0>] (panic+0x11c/0x360 kernel/panic.c:274) [<81752184>] (panic) from [<80241604>] (__warn+0x98/0x1a4 kernel/panic.c:621) r3:00000001 r2:00000000 r1:00000000 r0:81cf8970 r7:80263588 [<8024156c>] (__warn) from [<8175254c>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:644) r8:00000009 r7:80263588 r6:0000115a r5:81cf9d88 r4:00000000 [<817524e8>] (warn_slowpath_fmt) from [<80263588>] (destroy_workqueue+0x100/0x240 kernel/workqueue.c:4442) r8:83db7e50 r7:82951c10 r6:82951c00 r5:83859e00 r4:83859e1c [<80263488>] (destroy_workqueue) from [<816df39c>] (nci_unregister_device+0x30/0x98 net/nfc/nci/core.c:1293) r7:84c16000 r6:84c16000 r5:000e001b r4:824fa0e4 [<816df36c>] (nci_unregister_device) from [<809f597c>] (virtual_ncidev_close+0x64/0x7c drivers/nfc/virtual_ncidev.c:166) r9:7efffd08 r8:83db7e50 r7:83bf8450 r6:834b8088 r5:000e001b r4:824fa0e4 [<809f5918>] (virtual_ncidev_close) from [<804a9d54>] (__fput+0x84/0x264 fs/file_table.c:320) r5:000e001b r4:84b233c0 [<804a9cd0>] (__fput) from [<804a9fb0>] (____fput+0x10/0x14 fs/file_table.c:348) r9:7efffd08 r8:83ea3644 r7:824465dc r6:83ea2e00 r5:83ea3614 r4:00000000 [<804a9fa0>] (____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:ee0c5fb0 r4:83ea2e00 [<8020bc50>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x20) Exception stack(0xee0c5fb0 to 0xee0c5ff8) 5fa0: 00000000 00000002 00000000 00000003 5fc0: 00000004 017274c0 00000000 00000006 00140000 000003e8 0014c430 00000000 5fe0: 2f660000 7ef17400 0002a428 0002a8e4 80000010 00000003 r10:00000006 r9:83ea2e00 r8:80200288 r7:00000006 r6:00000000 r5:017274c0 r4:00000004 SMP: failed to stop secondary CPUs Rebooting in 86400 seconds..