WARNING: CPU: 1 PID: 16318 at kernel/workqueue.c:1383 __queue_work+0xc8d/0x1100 kernel/workqueue.c:1383
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 16318 Comm: syz-executor.4 Not tainted 4.19.189-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:1383
Code: 03 38 d0 7c 09 84 d2 74 05 e8 4f fa 59 00 8b 5b 24 31 ff 83 e3 20 89 de e8 40 3a 24 00 85 db 0f 85 c2 00 00 00 e8 c3 38 24 00 <0f> 0b e9 5d f9 ff ff e8 b7 38 24 00 4c 8d 75 60 41 83 cd 02 e9 02
RSP: 0018:ffff88804646f788 EFLAGS: 00010016
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000e36f000
RDX: 0000000000003007 RSI: ffffffff813e25ad RDI: 0000000000000005
RBP: 0000000000010000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88809174dae8
R13: ffff888099f4aa40 R14: 0000000000000000 R15: 0000000000000008
 queue_work_on+0x17e/0x1f0 kernel/workqueue.c:1488
 l2cap_do_send+0x300/0x480 net/bluetooth/l2cap_core.c:915
 l2cap_chan_send+0x2831/0x3be0 net/bluetooth/l2cap_core.c:2544
 l2cap_sock_sendmsg+0x235/0x2f0 net/bluetooth/l2cap_sock.c:974
 sock_sendmsg_nosec net/socket.c:622 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:632
 ___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2115
 __sys_sendmmsg+0x195/0x470 net/socket.c:2210
audit: type=1804 audit(1619672726.029:204): pid=16304 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir067865943/syzkaller.6Dk4wk/218/file1/cgroup.controllers" dev="loop5" ino=129 res=1
 __do_sys_sendmmsg net/socket.c:2239 [inline]
 __se_sys_sendmmsg net/socket.c:2236 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665f9
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:00007fd9f10aa188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9
RDX: 0000000000000500 RSI: 0000000020003f00 RDI: 0000000000000004
RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffffdfdeb8f R14: 00007fd9f10aa300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..