------------[ cut here ]------------
WARNING: CPU: 0 PID: 5312 at kernel/workqueue.c:2257 __queue_work+0xcd3/0xf50 kernel/workqueue.c:2256
Modules linked in:
CPU: 0 UID: 0 PID: 5312 Comm: syz.0.0 Not tainted 6.13.0-rc1-syzkaller-00182-gb8f52214c61a #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__queue_work+0xcd3/0xf50 kernel/workqueue.c:2256
Code: ff e8 81 ea 37 00 90 0f 0b 90 e9 b2 fe ff ff e8 73 ea 37 00 eb 13 e8 6c ea 37 00 eb 0c e8 65 ea 37 00 eb 05 e8 5e ea 37 00 90 <0f> 0b 90 48 83 c4 60 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc
RSP: 0018:ffffc90000007b08 EFLAGS: 00010046
RAX: ffffffff8167879d RBX: 0000000000000100 RCX: ffff88801f220000
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 0000000000010000 R08: ffffffff81677bc8 R09: 1ffffffff20328be
R10: dffffc0000000000 R11: ffffffff81678fd0 R12: ffff88803f55c000
R13: ffff88803f55c1c0 R14: dffffc0000000000 R15: 0000000000000008
FS: 00007fdf31ce16c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff99656248 CR3: 0000000042a36000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
call_timer_fn+0x187/0x650 kernel/time/timer.c:1793
expire_timers kernel/time/timer.c:1839 [inline]
__run_timers kernel/time/timer.c:2418 [inline]
__run_timer_base+0x695/0x8e0 kernel/time/timer.c:2430
run_timer_base kernel/time/timer.c:2439 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655
irq_exit_rcu+0x9/0x30 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5853
Code: 2b 00 74 08 4c 89 f7 e8 4a ac 8f 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc9000d4b76e0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92001a96ee8 RCX: ffff88801f220ad8
RDX: dffffc0000000000 RSI: ffffffff8c0aa880 RDI: ffffffff8c5f63e0
RBP: ffffc9000d4b7830 R08: ffffffff96b57827 R09: 1ffffffff2d6af04
R10: dffffc0000000000 R11: fffffbfff2d6af05 R12: 1ffff92001a96ee4
R13: dffffc0000000000 R14: ffffc9000d4b7740 R15: 0000000000000246
touch_wq_lockdep_map+0xc7/0x170 kernel/workqueue.c:3894
__flush_workqueue+0x14a/0x1280 kernel/workqueue.c:3936
drain_workqueue+0xc9/0x3a0 kernel/workqueue.c:4100
hci_dev_close_sync+0x5b8/0x11c0 net/bluetooth/hci_sync.c:5198
hci_dev_do_close+0x30/0x90 net/bluetooth/hci_core.c:483
hci_rfkill_set_block+0x232/0x300 net/bluetooth/hci_core.c:911
rfkill_set_block+0x1f1/0x440 net/rfkill/core.c:346
rfkill_fop_write+0x5b8/0x790 net/rfkill/core.c:1301
vfs_write+0x2a3/0xd30 fs/read_write.c:677
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdf30f7fed9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdf31ce1058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fdf31145fa0 RCX: 00007fdf30f7fed9
RDX: 0000000000000008 RSI: 0000000020000080 RDI: 0000000000000006
RBP: 00007fdf30ff3cc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fdf31145fa0 R15: 00007ffe2882d448
----------------
Code disassembly (best guess):
0: 2b 00 sub (%rax),%eax
2: 74 08 je 0xc
4: 4c 89 f7 mov %r14,%rdi
7: e8 4a ac 8f 00 call 0x8fac56
c: f6 44 24 61 02 testb $0x2,0x61(%rsp)
11: 0f 85 85 01 00 00 jne 0x19c
17: 41 f7 c7 00 02 00 00 test $0x200,%r15d
1e: 74 01 je 0x21
20: fb sti
21: 48 c7 44 24 40 0e 36 movq $0x45e0360e,0x40(%rsp)
28: e0 45
* 2a: 4b c7 44 25 00 00 00 movq $0x0,0x0(%r13,%r12,1) <-- trapping instruction
31: 00 00
33: 43 c7 44 25 09 00 00 movl $0x0,0x9(%r13,%r12,1)
3a: 00 00
3c: 43 rex.XB
3d: c7 .byte 0xc7
3e: 44 rex.R
3f: 25 .byte 0x25