------------[ cut here ]------------ WARNING: CPU: 0 PID: 8585 at kernel/locking/lockdep.c:894 look_up_lock_class kernel/locking/lockdep.c:894 [inline] WARNING: CPU: 0 PID: 8585 at kernel/locking/lockdep.c:894 register_lock_class+0x1f9/0x1100 kernel/locking/lockdep.c:1242 Modules linked in: CPU: 0 PID: 8585 Comm: syz-executor.5 Not tainted 5.12.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:894 [inline] RIP: 0010:register_lock_class+0x1f9/0x1100 kernel/locking/lockdep.c:1242 Code: 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 3c 0c 00 00 4d 3b 67 18 74 0b 49 81 3f 80 43 f6 8d 74 02 <0f> 0b 85 ed 0f 84 20 01 00 00 f6 44 24 04 01 0f 85 15 01 00 00 83 RSP: 0018:ffffc900037cfa50 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 1ffff920006f9f51 RCX: ffffffff8ea077a0 RDX: 1ffff1100542210f RSI: 0000000000000000 RDI: ffff88802a110878 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff899a2720 R13: ffffffff8ed62800 R14: ffffffff8e6c5c80 R15: ffff88802a110860 FS: 00007f12074f5700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000180 CR3: 0000000031ae9000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __lock_acquire+0x10a/0x5770 kernel/locking/lockdep.c:4779 lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:359 [inline] lock_sock_nested+0x39/0xf0 net/core/sock.c:3063 lock_sock include/net/sock.h:1600 [inline] selinux_netlbl_socket_connect+0x10/0x30 security/selinux/netlabel.c:607 security_socket_connect+0x44/0x80 security/security.c:2139 __sys_connect_file+0x8f/0x190 net/socket.c:1833 __sys_connect+0xf5/0x120 net/socket.c:1854 __do_sys_connect net/socket.c:1864 [inline] __se_sys_connect net/socket.c:1861 [inline] __x64_sys_connect+0x6a/0xb0 net/socket.c:1861 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465889 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:00007f12074f5188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 000000000055bfa8 RCX: 0000000000465889 RDX: 000000000000001c RSI: 0000000020000080 RDI: 0000000000000005 RBP: 00000000004af68d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000055bfa8 R13: 00007ffc27a3604f R14: 00007f12074f5300 R15: 0000000000022000