WARNING: CPU: 0 PID: 18000 at kernel/locking/lockdep.c:698 arch_local_save_flags arch/x86/include/asm/paravirt.h:784 [inline]
WARNING: CPU: 0 PID: 18000 at kernel/locking/lockdep.c:698 look_up_lock_class kernel/locking/lockdep.c:689 [inline]
WARNING: CPU: 0 PID: 18000 at kernel/locking/lockdep.c:698 register_lock_class+0x97a/0x1b20 kernel/locking/lockdep.c:749
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 18000 Comm: syz-executor.3 Not tainted 4.19.203-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+0x17c/0x226 lib/dump_stack.c:118
 panic+0x1cd/0x375 kernel/panic.c:186
 __warn.cold.7+0x1b/0x36 kernel/panic.c:541
 report_bug+0x1a1/0x200 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x200/0x350 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:698 [inline]
RIP: 0010:register_lock_class+0x97a/0x1b20 kernel/locking/lockdep.c:749
Code: 89 cf 44 89 95 60 ff ff ff e8 52 f2 45 00 44 8b 95 60 ff ff ff 48 c7 c1 20 a7 ad 8b 4c 8b 8d 68 ff ff ff e9 26 f7 ff ff 0f 0b <0f> 0b e9 6e f9 ff ff 49 8d 46 01 4d 69 f6 50 01 00 00 48 89 05 9d
RSP: 0018:ffff88807ddef948 EFLAGS: 00010087
RAX: 0000000000000004 RBX: ffffffff8b66b240 RCX: 0000000000000003
RDX: 1ffffffff175b4e4 RSI: 0000000000000000 RDI: ffff88809e633838
RBP: ffff88807ddefa20 R08: 0000000000000000 R09: ffff88809e633820
R10: 0000000000000000 R11: ffff88807ddefe1b R12: 1ffff1100fbbdf33
R13: 0000000000000000 R14: ffffffff88f2c380 R15: ffffffff88de5d40
 __lock_acquire+0x1a0/0x47c0 kernel/locking/lockdep.c:3304
 lock_acquire+0x180/0x3a0 kernel/locking/lockdep.c:3908
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168
 spin_lock_bh include/linux/spinlock.h:334 [inline]
 lock_sock_nested+0x3a/0x100 net/core/sock.c:2864
 lock_sock include/net/sock.h:1510 [inline]
 inet_autobind+0x13/0x160 net/ipv4/af_inet.c:179
 inet_dgram_connect+0x1db/0x270 net/ipv4/af_inet.c:569
 __sys_connect+0x20d/0x2d0 net/socket.c:1773
 __do_sys_connect net/socket.c:1784 [inline]
 __se_sys_connect net/socket.c:1781 [inline]
 __x64_sys_connect+0x6e/0xb0 net/socket.c:1781
 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665d9
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:00007fb7b686c188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 00000000004665d9
RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008
R13: 00007ffc32eabadf R14: 00007fb7b686c300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..
----------------
Code disassembly (best guess):
   0:	89 cf                	mov    %ecx,%edi
   2:	44 89 95 60 ff ff ff 	mov    %r10d,-0xa0(%rbp)
   9:	e8 52 f2 45 00       	callq  0x45f260
   e:	44 8b 95 60 ff ff ff 	mov    -0xa0(%rbp),%r10d
  15:	48 c7 c1 20 a7 ad 8b 	mov    $0xffffffff8bada720,%rcx
  1c:	4c 8b 8d 68 ff ff ff 	mov    -0x98(%rbp),%r9
  23:	e9 26 f7 ff ff       	jmpq   0xfffff74e
  28:	0f 0b                	ud2    
  2a:	0f 0b                	ud2     <-- trapping instruction
  2c:	e9 6e f9 ff ff       	jmpq   0xfffff99f
  31:	49 8d 46 01          	lea    0x1(%r14),%rax
  35:	4d 69 f6 50 01 00 00 	imul   $0x150,%r14,%r14
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	05                   	.byte 0x5
  3f:	9d                   	popfq