------------[ cut here ]------------
workqueue: cannot queue hci_cmd_timeout on wq hci1
WARNING: kernel/workqueue.c:2437 at __queue_work+0xdfc/0x1360 kernel/workqueue.c:2436, CPU#0: syz.4.4452/23392
Modules linked in:
CPU: 0 UID: 0 PID: 23392 Comm: syz.4.4452 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:__queue_work+0xe1a/0x1360 kernel/workqueue.c:2436
Code: 28 78 01 00 00 4c 8d 35 74 1b 11 10 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05 e8 42 8c b0 00 49 8b 77 18 4c 89 f7 48 8b 54 24 28 <67> 48 0f b9 3a 4c 89 f8 48 c1 e8 03 80 3c 18 00 74 08 4c 89 ff e8
RSP: 0018:ffffc90000007be8 EFLAGS: 00010046
RAX: 1ffff110075fe94e RBX: dffffc0000000000 RCX: ffff8880284f5dc0
RDX: ffff8880363dc178 RSI: ffffffff8aeeadf0 RDI: ffffffff91a00990
RBP: 0000000000010000 R08: 0000000000000100 R09: 1ffffffff233a677
R10: dffffc0000000000 R11: ffffffff818ef750 R12: ffff8880363dc1c0
R13: 0000000000000008 R14: ffffffff91a00990 R15: ffff88803aff4a58
FS: 00007efdcdfdd6c0(0000) GS:ffff88812362a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000021c000 CR3: 0000000037f46000 CR4: 00000000003526f0
Call Trace:
call_timer_fn+0x18d/0x5f0 kernel/time/timer.c:1749
expire_timers kernel/time/timer.c:1795 [inline]
__run_timers kernel/time/timer.c:2375 [inline]
__run_timer_base+0x67e/0x8b0 kernel/time/timer.c:2387
run_timer_base kernel/time/timer.c:2396 [inline]
run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2406
handle_softirqs+0x265/0x8d0 kernel/softirq.c:669
__do_softirq kernel/softirq.c:703 [inline]
invoke_softirq kernel/softirq.c:542 [inline]
__irq_exit_rcu+0xc6/0x220 kernel/softirq.c:786
irq_exit_rcu+0x9/0x30 kernel/softirq.c:809
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:rwsem_assert_held include/linux/rwsem.h:212 [inline]
RIP: 0010:mmap_assert_locked include/linux/mmap_lock.h:71 [inline]
RIP: 0010:find_vma+0xa9/0x160 mm/mmap.c:922
Code: e8 03 42 0f b6 04 20 84 c0 0f 85 a4 00 00 00 4c 8d 74 24 20 44 8b 3d 06 c5 74 0f 31 ff 44 89 fe e8 bc 73 a0 ff 45 85 ff 74 29 <48> 8d bb 40 03 00 00 be ff ff ff ff e8 36 da d7 09 41 89 c7 31 ff
RSP: 0018:ffffc9000442f7c0 EFLAGS: 00000202
RAX: ffffffff82289df4 RBX: ffff888026dc8c40 RCX: ffff8880284f5dc0
RDX: 0000000000000002 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc9000442f848 R08: ffffffff82238106 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1004db91e5 R12: dffffc0000000000
R13: 1ffff92000885ef8 R14: ffffc9000442f7e0 R15: 0000000000000001
lock_mm_and_find_vma+0x66/0x340 mm/mmap_lock.c:537
do_user_addr_fault+0x33e/0x1480 arch/x86/mm/fault.c:1366
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 8d 7e 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:ffffc9000442fa38 EFLAGS: 00050206
RAX: 00007ffffffff001 RBX: 0000000000000038 RCX: 0000000000000038
RDX: 0000000000000001 RSI: 000020000021c000 RDI: ffffc9000442fac0
RBP: ffffc9000442fc50 R08: ffffc9000442faf7 R09: 1ffff92000885f5e
R10: dffffc0000000000 R11: fffff52000885f5f R12: ffffc9000442fbc0
R13: ffffc9000442fac0 R14: ffffc9000442fac0 R15: 000020000021c000
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/0x800 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: 0033:0x7efdcd19f559
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:00007efdcdfdd028 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007efdcd426090 RCX: 00007efdcd19f559
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003
RBP: 00007efdcd236b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efdcd426128 R14: 00007efdcd426090 R15: 00007efdcd54fa48
----------------
Code disassembly (best guess):
0: 28 78 01 sub %bh,0x1(%rax)
3: 00 00 add %al,(%rax)
5: 4c 8d 35 74 1b 11 10 lea 0x10111b74(%rip),%r14 # 0x10111b80
c: 48 89 f8 mov %rdi,%rax
f: 48 c1 e8 03 shr $0x3,%rax
13: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
17: 74 05 je 0x1e
19: e8 42 8c b0 00 call 0xb08c60
1e: 49 8b 77 18 mov 0x18(%r15),%rsi
22: 4c 89 f7 mov %r14,%rdi
25: 48 8b 54 24 28 mov 0x28(%rsp),%rdx
* 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction
2f: 4c 89 f8 mov %r15,%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 ff mov %r15,%rdi
3f: e8 .byte 0xe8