audit: type=1804 audit(1617433168.123:68): pid=18675 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir628596376/syzkaller.457pUy/443/bus" dev="sda1" ino=14242 res=1 WARNING: CPU: 0 PID: 18417 at kernel/workqueue.c:1384 __queue_work+0xc8d/0x1100 kernel/workqueue.c:1384 netlink: 'syz-executor.5': attribute type 5 has an invalid length. Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 18417 Comm: syz-executor.3 Not tainted 4.19.184-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:__queue_work+0xc8d/0x1100 kernel/workqueue.c:1384 Code: 03 38 d0 7c 09 84 d2 74 05 e8 df f8 59 00 8b 5b 24 31 ff 83 e3 20 89 de e8 90 39 24 00 85 db 0f 85 c2 00 00 00 e8 13 38 24 00 <0f> 0b e9 5d f9 ff ff e8 07 38 24 00 4c 8d 75 60 41 83 cd 02 e9 11 RSP: 0018:ffff8880ba007ca8 EFLAGS: 00010006 RAX: ffff8880425404c0 RBX: 0000000000000100 RCX: ffffffff813e24f0 RDX: 0000000000000100 RSI: ffffffff813e254d RDI: 0000000000000005 RBP: 0000000000010000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880ab5d8ae0 R13: 1ffff11017400fa7 R14: 0000000000000000 R15: 0000000000000008 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x97/0x4e0 kernel/time/timer.c:1371 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:535 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x50/0x80 kernel/locking/spinlock.c:192 Code: c0 58 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 31 48 83 3d 81 ab d9 01 00 74 25 fb 66 0f 1f 44 00 00 01 00 00 00 e8 56 92 29 f9 65 8b 05 1f 08 ea 77 85 c0 74 02 5d RSP: 0018:ffff8880366576a8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e304b RBX: ffff8880ab7bc000 RCX: 1ffff110084a81b2 RDX: dffffc0000000000 RSI: ffff888042540d70 RDI: ffff888042540d44 RBP: ffff8880b248f680 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000000 R14: ffff8880b248f680 R15: ffff8880ac330780 spin_unlock_irq include/linux/spinlock.h:379 [inline] flush_workqueue_prep_pwqs+0x13d/0x570 kernel/workqueue.c:2632 flush_workqueue+0x54f/0x13e0 kernel/workqueue.c:2686 drain_workqueue+0x1a5/0x460 kernel/workqueue.c:2825 hci_dev_do_close+0x2cd/0xf10 net/bluetooth/hci_core.c:1653 hci_unregister_dev+0x18b/0x910 net/bluetooth/hci_core.c:3273 vhci_release+0x70/0xe0 drivers/bluetooth/hci_vhci.c:354 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0xbf3/0x2be0 kernel/exit.c:870 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x466459 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5061c9d218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000056bf68 RCX: 0000000000466459 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000056bf68 RBP: 000000000056bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf6c R13: 00007ffc7eaea25f R14: 00007f5061c9d300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..