------------[ cut here ]------------
WARNING: CPU: 1 PID: 570 at kernel/locking/lockdep.c:854 look_up_lock_class kernel/locking/lockdep.c:853 [inline]
WARNING: CPU: 1 PID: 570 at kernel/locking/lockdep.c:854 register_lock_class+0x225/0x1520 kernel/locking/lockdep.c:1201
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 570 Comm: syz-executor.2 Not tainted 5.9.0-rc5-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+0x1d6/0x29e lib/dump_stack.c:118
 panic+0x2c0/0x800 kernel/panic.c:231
 __warn+0x227/0x250 kernel/panic.c:600
 report_bug+0x1b1/0x2e0 lib/bug.c:198
 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:853 [inline]
RIP: 0010:register_lock_class+0x225/0x1520 kernel/locking/lockdep.c:1201
Code: 0f 84 cb 0a 00 00 43 80 3c 2f 00 48 8b 5c 24 08 74 08 48 89 df e8 6b 00 5b 00 48 c7 c0 30 94 da 8a 48 39 03 0f 84 a7 0a 00 00 <0f> 0b e9 a0 0a 00 00 e8 4f b4 d1 06 48 c7 c7 dc a3 09 89 89 de 31
RSP: 0018:ffffc90008aa7ad8 EFLAGS: 00010006
RAX: ffffffff8ada9430 RBX: ffff88808ef3d8a0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88808ef3d8a0
RBP: ffffffff8b00b308 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: ffffffff866c4bdc R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8929b0bb R15: 1ffff11011de7b14
 __lock_acquire+0xfd/0x2ae0 kernel/locking/lockdep.c:4305
 reacquire_held_locks+0x291/0x4e0 kernel/locking/lockdep.c:4564
 __lock_release kernel/locking/lockdep.c:4752 [inline]
 lock_release+0x40b/0x750 kernel/locking/lockdep.c:5026
 sock_release_ownership include/net/sock.h:1548 [inline]
 release_sock+0x112/0x1c0 net/core/sock.c:3073
 ip6_datagram_connect+0x34/0x40 net/ipv6/datagram.c:273
 __sys_connect_file net/socket.c:1852 [inline]
 __sys_connect+0x2d8/0x350 net/socket.c:1869
 __do_sys_connect net/socket.c:1879 [inline]
 __se_sys_connect net/socket.c:1876 [inline]
 __x64_sys_connect+0x76/0x80 net/socket.c:1876
 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45d5f9
Code: 5d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f471fdbcc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000002380 RCX: 000000000045d5f9
RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000005
RBP: 000000000118d020 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cfec
R13: 00007fff7ebc0bdf R14: 00007f471fdbd9c0 R15: 000000000118cfec
Kernel Offset: disabled
Rebooting in 86400 seconds..