------------[ cut here ]------------ WARNING: CPU: 1 PID: 3260 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: 1 PID: 3260 Comm: syz-executor.0 Not tainted 6.1.0-rc4-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<8173b47c>] (dump_backtrace) from [<8173b570>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:253) r7:81cfb8d0 r6:822228ec r5:60000093 r4:81d09cb8 [<8173b558>] (show_stack) from [<81757650>] (__dump_stack lib/dump_stack.c:88 [inline]) [<8173b558>] (show_stack) from [<81757650>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<81757608>] (dump_stack_lvl) from [<81757674>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:82448d14 [<8175765c>] (dump_stack) from [<8173c118>] (panic+0x11c/0x360 kernel/panic.c:274) [<8173bffc>] (panic) from [<80241604>] (__warn+0x98/0x1a4 kernel/panic.c:621) r3:00000001 r2:00000000 r1:00000000 r0:81cfb8d0 r7:80263588 [<8024156c>] (__warn) from [<8173c3c4>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:644) r8:00000009 r7:80263588 r6:0000115a r5:81cfcce8 r4:00000000 [<8173c360>] (warn_slowpath_fmt) from [<80263588>] (destroy_workqueue+0x100/0x240 kernel/workqueue.c:4442) r8:84a28f10 r7:8483a410 r6:8483a400 r5:83ff1200 r4:83ff121c [<80263488>] (destroy_workqueue) from [<816caafc>] (nci_unregister_device+0x30/0x98 net/nfc/nci/core.c:1293) r7:8500e800 r6:8500e800 r5:000e001b r4:824fd054 [<816caacc>] (nci_unregister_device) from [<809f196c>] (virtual_ncidev_close+0x64/0x7c drivers/nfc/virtual_ncidev.c:166) r9:7efffd08 r8:84a28f10 r7:82976650 r6:82ddacc0 r5:000e001b r4:824fd054 [<809f1908>] (virtual_ncidev_close) from [<804a9600>] (__fput+0x84/0x264 fs/file_table.c:320) r5:000e001b r4:85076900 [<804a957c>] (__fput) from [<804a985c>] (____fput+0x10/0x14 fs/file_table.c:348) r9:7efffd08 r8:850258c4 r7:824495dc r6:85025080 r5:85025894 r4:00000000 [<804a984c>] (____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:dfa55fb0 r4:85025080 [<8020bc50>] (do_work_pending) from [<80200088>] (slow_work_pending+0xc/0x20) Exception stack(0xdfa55fb0 to 0xdfa55ff8) 5fa0: 00000000 00000002 00000000 00000003 5fc0: 00000004 01c0d4c0 00000000 00000006 00140000 000003e8 0014c0d8 0014c0d8 5fe0: 2f860000 7eb8f408 0002993c 00029df8 80000010 00000003 r10:00000006 r9:85025080 r8:80200288 r7:00000006 r6:00000000 r5:01c0d4c0 r4:00000004 SMP: failed to stop secondary CPUs Rebooting in 86400 seconds..