RDX: 0000000000000001 RSI: 00000000400455c8 RDI: 0000000000000003 RBP: 00007f41a609dca0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 00000000006e6130 R14: 00000000004a7999 R15: 00007f41a609e6d4 CPU: 0 PID: 6973 Comm: syz-executor.0 Not tainted 5.0.0+ #1 WARNING: CPU: 1 PID: 6970 at kernel/locking/lockdep.c:4925 lockdep_unregister_key+0x21c/0x4e0 kernel/locking/lockdep.c:4925 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 Kernel panic - not syncing: panic_on_warn set ... Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x16e/0x1f6 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x17 lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1604 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3374 [inline] kmem_cache_alloc_trace+0x2db/0x750 mm/slab.c:3613 kmalloc include/linux/slab.h:545 [inline] kzalloc include/linux/slab.h:740 [inline] alloc_workqueue_attrs+0x7c/0x110 kernel/workqueue.c:3255 alloc_workqueue+0x1a8/0xea0 kernel/workqueue.c:4144 hci_register_dev+0x1b3/0x860 net/bluetooth/hci_core.c:3288 hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:676 [inline] hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:700 [inline] hci_uart_tty_ioctl+0x770/0xb00 drivers/bluetooth/hci_ldisc.c:754 tty_ioctl+0x12d8/0x16c0 drivers/tty/tty_io.c:2662 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x1e1/0x1370 fs/ioctl.c:696 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x600 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457799 Code: 8d b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f8b51dcfc88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 0000000000457799 RDX: 0000000000000001 RSI: 00000000400455c8 RDI: 0000000000000003 RBP: 00007f8b51dcfca0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 00000000006e6130 R14: 00000000004a7999 R15: 00007f8b51dd06d4 CPU: 1 PID: 6970 Comm: syz-executor.4 Not tainted 5.0.0+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x16e/0x1f6 lib/dump_stack.c:113 panic+0x2ad/0x632 kernel/panic.c:214 __warn.cold.8+0x20/0x54 kernel/panic.c:571 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973 RIP: 0010:lockdep_unregister_key+0x21c/0x4e0 kernel/locking/lockdep.c:4925 Code: b8 00 00 00 00 00 fc ff df 48 89 d1 48 c1 e9 03 80 3c 01 00 0f 85 4d 02 00 00 48 b8 00 02 00 00 00 00 ad de 48 89 43 08 eb 02 <0f> 0b ba 01 00 00 00 4c 89 e6 4c 89 ff e8 62 da ff ff 4c 89 ff e8 RSP: 0018:ffff8880226df8b0 EFLAGS: 00010046 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 1ffffffff1461b07 RSI: 0000000000000004 RDI: ffffffff8a30d838 RBP: ffff8880226df8e8 R08: ffffed10044dbf0b R09: ffffed10044dbf0a R10: ffffed10044dbf0a R11: 0000000000000003 R12: ffff888074144418 R13: ffff888074144448 R14: 0000000000000282 R15: ffffffff8a08a748 wq_unregister_lockdep kernel/workqueue.c:3356 [inline] alloc_workqueue+0x1e2/0xea0 kernel/workqueue.c:4197 hci_register_dev+0x1b3/0x860 net/bluetooth/hci_core.c:3288 hci_uart_register_dev drivers/bluetooth/hci_ldisc.c:676 [inline] hci_uart_set_proto drivers/bluetooth/hci_ldisc.c:700 [inline] hci_uart_tty_ioctl+0x770/0xb00 drivers/bluetooth/hci_ldisc.c:754 tty_ioctl+0x12d8/0x16c0 drivers/tty/tty_io.c:2662 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x1e1/0x1370 fs/ioctl.c:696 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x103/0x600 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457799 Code: 8d b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f41a609dc88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000071bf00 RCX: 0000000000457799 RDX: 0000000000000001 RSI: 00000000400455c8 RDI: 0000000000000003 RBP: 00007f41a609dca0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 00000000006e6130 R14: 00000000004a7999 R15: 00007f41a609e6d4 Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..