------------[ cut here ]------------
WARNING: CPU: 0 PID: 7191 at kernel/locking/lockdep.c:938 look_up_lock_class+0x110/0x120 kernel/locking/lockdep.c:928
Modules linked in:
CPU: 0 PID: 7191 Comm: syz-executor.0 Not tainted 6.0.0-syzkaller-06475-g4c86114194e6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:look_up_lock_class+0x110/0x120 kernel/locking/lockdep.c:937
Code: 31 db 85 c0 74 af 83 3d 65 c0 e8 03 00 75 a6 31 db 48 c7 c7 e0 5f ad 8a 48 c7 c6 20 60 ad 8a 31 c0 e8 04 9d 12 f7 0f 0b eb 8b <0f> 0b eb 87 e8 c7 fa ff ff 0f 1f 80 00 00 00 00 55 53 bd 01 00 00
RSP: 0018:ffffc90007bd7438 EFLAGS: 00010002
RAX: ffffffff8fe77f40 RBX: ffffffff8fcf7440 RCX: 000000000000088f
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8880790130b0
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: fffffbfff1c4cbde R11: 1ffffffff1c4cbdd R12: ffff8880790130b0
R13: ffff8880790130b0 R14: 0000000000000000 R15: 1ffff92000f7ae94
FS:  00007f19bcf1d700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f19bcf1d718 CR3: 00000000739ca000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 register_lock_class+0xfe/0x9b0 kernel/locking/lockdep.c:1287
 __lock_acquire+0xe4/0x1f60 kernel/locking/lockdep.c:4932
 lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5666
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
 _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:354 [inline]
 lock_sock_nested+0x66/0xf0 net/core/sock.c:3450
 do_ipv6_setsockopt+0x41d/0x4650 net/ipv6/ipv6_sockglue.c:420
 ipv6_setsockopt+0x58/0x190 net/ipv6/ipv6_sockglue.c:1021
 __sys_setsockopt+0x65d/0xa00 net/socket.c:2252
 __do_sys_setsockopt net/socket.c:2263 [inline]
 __se_sys_setsockopt net/socket.c:2260 [inline]
 __x64_sys_setsockopt+0xb1/0xc0 net/socket.c:2260
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
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:00007f19bcf1d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665d9
RDX: 000000000000003b RSI: 0000000000000029 RDI: 0000000000000004
RBP: 00000000004bfcb9 R08: 0000000000000008 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038
R13: 00007fff55c0a6ef R14: 00007f19bcf1d300 R15: 0000000000022000
 </TASK>