------------[ cut here ]------------ WARNING: CPU: 0 PID: 4905 at kernel/locking/lockdep.c:938 look_up_lock_class+0x110/0x120 kernel/locking/lockdep.c:928 Modules linked in: CPU: 0 PID: 4905 Comm: syz-executor.0 Not tainted 6.0.0-syzkaller-00188-gf3dfe925f954 #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 e5 25 ec 03 00 75 a6 31 db 48 c7 c7 a0 76 ad 8a 48 c7 c6 e0 76 ad 8a 31 c0 e8 04 ae 17 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:ffffc900042379f8 EFLAGS: 00010002 RAX: ffffffff8fe63f40 RBX: ffffffff8fce3140 RCX: 0000000000000ddf RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff88807d24a0b0 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: fffffbfff1c4b66e R11: 1ffffffff1c4b66d R12: ffff88807d24a0b0 R13: ffff88807d24a0b0 R14: 0000000000000000 R15: 1ffff92000846f4c FS: 00007f55f03e9700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000004 CR3: 0000000075fa5000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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:3396 lock_sock include/net/sock.h:1712 [inline] inet_autobind net/ipv4/af_inet.c:177 [inline] inet_dgram_connect+0x151/0x3d0 net/ipv4/af_inet.c:574 __sys_connect_file net/socket.c:1976 [inline] __sys_connect+0x29b/0x2d0 net/socket.c:1993 __do_sys_connect net/socket.c:2003 [inline] __se_sys_connect net/socket.c:2000 [inline] __x64_sys_connect+0x76/0x80 net/socket.c:2000 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: 0033:0x7f55ef288a39 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:00007f55f03e9188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f55ef39c020 RCX: 00007f55ef288a39 RDX: 000000000000001c RSI: 0000000020000040 RDI: 0000000000000006 RBP: 00007f55ef2e2e8f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcad67153f R14: 00007f55f03e9300 R15: 0000000000022000