------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci3
WARNING: kernel/workqueue.c:2353 at __queue_work+0xd83/0x10d0 kernel/workqueue.c:2352, CPU#0: syz.4.4566/25561
Modules linked in:
CPU: 0 UID: 0 PID: 25561 Comm: syz.4.4566 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__queue_work+0xd9f/0x10d0 kernel/workqueue.c:2352
Code: 49 81 c7 70 01 00 00 4c 8d 35 bd 2f ee 0e 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 cb aa a9 00 49 8b 75 18 4c 89 f7 4c 89 fa <67> 48 0f b9 3a 4c 89 e8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ef e8
RSP: 0018:ffffc90000007bc0 EFLAGS: 00010046
RAX: 1ffff11011db814e RBX: dffffc0000000000 RCX: ffff88807e811f40
RDX: ffff8880256e6170 RSI: ffffffff8ad58c30 RDI: ffffffff907c7630
RBP: 0000000000010000 R08: 0000000000000100 R09: 1ffffffff20f340f
R10: dffffc0000000000 R11: ffffffff818e4d90 R12: 0000000000000008
R13: ffff88808edc0a58 R14: ffffffff907c7630 R15: ffff8880256e6170
FS: 00007f5e9cc846c0(0000) GS:ffff888124cda000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000020c000 CR3: 00000000935a4000 CR4: 00000000003526f0
Call Trace:
call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1748
expire_timers kernel/time/timer.c:1794 [inline]
__run_timers kernel/time/timer.c:2374 [inline]
__run_timer_base+0x67e/0x8b0 kernel/time/timer.c:2386
run_timer_base kernel/time/timer.c:2395 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2405
handle_softirqs+0x226/0x860 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
RIP: 0010:rcu_read_lock include/linux/rcupdate.h:849 [inline]
RIP: 0010:count_memcg_events_mm include/linux/memcontrol.h:990 [inline]
RIP: 0010:count_memcg_event_mm+0x3d/0x260 include/linux/memcontrol.h:1000
Code: 00 00 e8 f6 4d 8f ff 48 8d 1d 00 00 00 00 48 c7 c7 a0 c8 d5 8e 31 f6 31 d2 b9 02 00 00 00 45 31 c0 45 31 c9 53 e8 d3 65 85 ff <48> 83 c4 08 e8 6a 0b c8 09 41 89 c7 31 ff 89 c6 e8 0e 13 aa ff 45
RSP: 0018:ffffc90005957630 EFLAGS: 00000282
RAX: 7724c2447dbef100 RBX: ffffffff821ddfd1 RCX: 0000000000000046
RDX: 00000000f74effff RSI: ffffffff8e688ec6 RDI: ffffffff8c6dad80
RBP: 0000000000000017 R08: ffffffff821ddfd1 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1006c352d9 R12: ffff88807e811f40
R13: dffffc0000000000 R14: ffff8880121e9880 R15: 0000000000000041
mm_account_fault mm/memory.c:6741 [inline]
handle_mm_fault+0x34a2/0x3750 mm/memory.c:6902
do_user_addr_fault+0x746/0x1340 arch/x86/mm/fault.c:1394
handle_page_fault arch/x86/mm/fault.c:1483 [inline]
exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0010:rep_movs_alternative+0x30/0xa0 arch/x86/lib/copy_user_64.S:60
Code: 83 f9 08 73 25 85 c9 74 0f 8a 06 88 07 48 ff c7 48 ff c6 48 ff c9 75 f1 e9 fd 67 04 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <48> 8b 06 48 89 07 48 83 c6 08 48 83 c7 08 83 e9 08 74 db 83 f9 08
RSP: 0018:ffffc90005957a38 EFLAGS: 00050206
RAX: 00007ffffffff001 RBX: 0000000000000038 RCX: 0000000000000038
RDX: 0000000000000001 RSI: 000020000020c000 RDI: ffffc90005957ac0
RBP: ffffc90005957c50 R08: ffffc90005957af7 R09: 1ffff92000b2af5e
R10: dffffc0000000000 R11: fffff52000b2af5f R12: ffffc90005957bc0
R13: ffffc90005957ac0 R14: ffffc90005957ac0 R15: 000020000020c000
copy_user_generic arch/x86/include/asm/uaccess_64.h:126 [inline]
raw_copy_from_user arch/x86/include/asm/uaccess_64.h:141 [inline]
_inline_copy_from_user include/linux/uaccess.h:185 [inline]
_copy_from_user+0x7a/0xb0 lib/usercopy.c:18
copy_from_user include/linux/uaccess.h:222 [inline]
copy_msghdr_from_user net/socket.c:2645 [inline]
recvmsg_copy_msghdr net/socket.c:2901 [inline]
___sys_recvmsg+0x173/0x5a0 net/socket.c:2973
do_recvmmsg+0x31a/0x7f0 net/socket.c:3072
__sys_recvmmsg net/socket.c:3146 [inline]
__do_sys_recvmmsg net/socket.c:3169 [inline]
__se_sys_recvmmsg net/socket.c:3162 [inline]
__x64_sys_recvmmsg+0x198/0x250 net/socket.c:3162
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5e9bd9e199
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5e9cc84028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f5e9c026090 RCX: 00007f5e9bd9e199
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000008
RBP: 00007f5e9be358e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5e9c026128 R14: 00007f5e9c026090 R15: 00007ffcf0d7c218
----------------
Code disassembly (best guess):
0: 49 81 c7 70 01 00 00 add $0x170,%r15
7: 4c 8d 35 bd 2f ee 0e lea 0xeee2fbd(%rip),%r14 # 0xeee2fcb
e: 48 89 f8 mov %rdi,%rax
11: 48 c1 e8 03 shr $0x3,%rax
15: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
19: 74 05 je 0x20
1b: e8 cb aa a9 00 call 0xa9aaeb
20: 49 8b 75 18 mov 0x18(%r13),%rsi
24: 4c 89 f7 mov %r14,%rdi
27: 4c 89 fa mov %r15,%rdx
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 4c 89 e8 mov %r13,%rax
32: 48 c1 e8 03 shr $0x3,%rax
36: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
3a: 74 08 je 0x44
3c: 4c 89 ef mov %r13,%rdi
3f: e8 .byte 0xe8