------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci0
WARNING: kernel/workqueue.c:2297 at __queue_work+0xcee/0x1270 kernel/workqueue.c:2296, CPU#1: syz.4.1761/12331
Modules linked in:
CPU: 1 UID: 0 PID: 12331 Comm: syz.4.1761 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__queue_work+0xcf2/0x1270 kernel/workqueue.c:2296
Code: 00 00 00 fc ff df 49 8d 94 24 70 01 00 00 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 3d 05 00 00 48 8d 3d e2 c3 0b 0f 48 8b 75 18 <67> 48 0f b9 3a 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03
RSP: 0018:ffffc900006a0bd0 EFLAGS: 00010046
RAX: dffffc0000000000 RBX: 0000000000000100 RCX: 1ffff1100810d94e
RDX: ffff8880409cf170 RSI: ffffffff8a804bf0 RDI: ffffffff90dade60
RBP: ffff88804086ca58 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000000 R12: ffff8880409cf000
R13: 1ffff920000d418d R14: ffffffff81cf2010 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880d646d000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f94aeb4da08 CR3: 00000000661f7000 CR4: 0000000000352ef0
DR0: ffffffffffffffff DR1: 00000000000001f8 DR2: 0000000000000002
DR3: ffffffffefffff15 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
call_timer_fn+0x19a/0x640 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1794 [inline]
__run_timers+0x583/0xaf0 kernel/time/timer.c:2374
__run_timer_base kernel/time/timer.c:2386 [inline]
__run_timer_base kernel/time/timer.c:2378 [inline]
run_timer_base+0x114/0x190 kernel/time/timer.c:2395
run_timer_softirq+0x1a/0x50 kernel/time/timer.c:2405
handle_softirqs+0x1ea/0xa00 kernel/softirq.c:622
__do_softirq kernel/softirq.c:656 [inline]
invoke_softirq kernel/softirq.c:496 [inline]
__irq_exit_rcu+0x162/0x210 kernel/softirq.c:735
irq_exit_rcu+0x9/0x30 kernel/softirq.c:752
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1061
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__sanitizer_cov_trace_pc+0x2a/0x70 kernel/kcov.c:235
Code: f3 0f 1e fa 65 8b 05 45 81 02 12 48 8b 34 24 65 48 8b 15 21 81 02 12 a9 00 01 ff 00 74 1b f6 c4 01 74 07 a9 00 00 ff 00 74 05 11 6c 85 09 8b 82 d4 16 00 00 85 c0 74 f1 8b 82 b0 16 00 00 83
RSP: 0018:ffffc900036bf260 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffea0004b65940 RCX: ffffffff8245c029
RDX: ffff888035114a00 RSI: ffffffff8243f0da RDI: ffffea0004b65940
RBP: ffffea0004b65974 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000004544
R13: 0000000000000001 R14: ffffea0004b65948 R15: dffffc0000000000
const_folio_flags.constprop.0+0xa/0x70 include/linux/page-flags.h:343
folio_test_writeback include/linux/page-flags.h:591 [inline]
find_lock_entries+0xc2f/0x1190 mm/filemap.c:2188
shmem_undo_range+0x212/0x1570 mm/shmem.c:1131
shmem_truncate_range mm/shmem.c:1277 [inline]
shmem_evict_inode+0x3f3/0xc40 mm/shmem.c:1407
evict+0x3c2/0xad0 fs/inode.c:841
iput_final fs/inode.c:1960 [inline]
iput.part.0+0x605/0xf50 fs/inode.c:2009
iput+0x35/0x40 fs/inode.c:1975
dentry_unlink_inode+0x2c0/0x4c0 fs/dcache.c:476
__dentry_kill+0x1d0/0x690 fs/dcache.c:718
finish_dput+0x76/0x480 fs/dcache.c:927
dput.part.0+0x456/0x570 fs/dcache.c:976
dput+0x1f/0x30 fs/dcache.c:968
__fput+0x519/0xb50 fs/file_table.c:518
task_work_run+0x150/0x240 kernel/task_work.c:233
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x951/0x2af0 kernel/exit.c:976
do_group_exit+0xd5/0x2a0 kernel/exit.c:1119
get_signal+0x20ff/0x2210 kernel/signal.c:3037
arch_do_signal_or_restart+0x91/0x7e0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
exit_to_user_mode_loop kernel/entry/common.c:98 [inline]
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:252 [inline]
irqentry_exit_to_user_mode include/linux/irq-entry-common.h:323 [inline]
irqentry_exit+0x410/0x7e0 kernel/entry/common.c:162
asm_exc_general_protection+0x26/0x30 arch/x86/include/asm/idtentry.h:612
RIP: 00bf:0x200000000440
Code: Unable to access opcode bytes at 0x200000000416.
RSP: 002b:0000000000000000 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 fc add %bh,%ah
4: ff lcall (bad)
5: df 49 8d fisttps -0x73(%rcx)
8: 94 xchg %eax,%esp
9: 24 70 and $0x70,%al
b: 01 00 add %eax,(%rax)
d: 00 48 89 add %cl,-0x77(%rax)
10: f9 stc
11: 48 c1 e9 03 shr $0x3,%rcx
15: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1)
19: 0f 85 3d 05 00 00 jne 0x55c
1f: 48 8d 3d e2 c3 0b 0f lea 0xf0bc3e2(%rip),%rdi # 0xf0bc408
26: 48 8b 75 18 mov 0x18(%rbp),%rsi
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
36: fc ff df
39: 48 89 ea mov %rbp,%rdx
3c: 48 c1 ea 03 shr $0x3,%rdx