audit: type=1804 audit(1595874910.597:1355): pid=6456 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/dev/loop0" dev="sda1" ino=16664 res=1
WARNING: CPU: 1 PID: 12853 at kernel/locking/lockdep.c:698 arch_local_save_flags arch/x86/include/asm/paravirt.h:784 [inline]
WARNING: CPU: 1 PID: 12853 at kernel/locking/lockdep.c:698 look_up_lock_class kernel/locking/lockdep.c:689 [inline]
WARNING: CPU: 1 PID: 12853 at kernel/locking/lockdep.c:698 register_lock_class+0x77b/0x11c0 kernel/locking/lockdep.c:748
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 12853 Comm: syz-executor.3 Not tainted 4.19.134-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+0x1fc/0x2fe lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x61 kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
 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+0x77b/0x11c0 kernel/locking/lockdep.c:748
Code: 8b 05 59 9a 51 0a 85 c0 0f 85 17 ff ff ff 48 c7 c6 80 8f 8a 87 48 c7 c7 40 8d 8a 87 e8 39 d6 ec ff 0f 0b e9 fd fe ff ff 0f 0b <0f> 0b e9 b3 fa ff ff 48 8d 70 01 48 69 c0 50 01 00 00 48 89 35 fc
RSP: 0018:ffff88821254f9f8 EFLAGS: 00010083
RAX: dffffc0000000000 RBX: ffff8880937100e0 RCX: 0000000000000000
RDX: 1ffff110126e201f RSI: 0000000000000000 RDI: ffff8880937100f8
RBP: 0000000000000000 R08: 0000000000000000 R09: 1ffff110424a9f47
R10: ffffffff8b906aa0 R11: 0000000000000000 R12: ffffffff8b497470
R13: ffffffff882a4c60 R14: 1ffff110424a9f47 R15: 0000000000000000
 __lock_acquire+0x17d/0x3ff0 kernel/locking/lockdep.c:3303
 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3907
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:168
 spin_lock_bh include/linux/spinlock.h:334 [inline]
 lock_sock_nested+0x3b/0x110 net/core/sock.c:2843
 lock_sock include/net/sock.h:1506 [inline]
 selinux_netlbl_socket_connect+0x18/0x40 security/selinux/netlabel.c:621
 selinux_socket_connect+0x65/0x80 security/selinux/hooks.c:4877
 security_socket_connect+0x50/0xb0 security/security.c:1398
 __sys_connect+0x1b1/0x2c0 net/socket.c:1659
 __do_sys_connect net/socket.c:1674 [inline]
 __se_sys_connect net/socket.c:1671 [inline]
 __x64_sys_connect+0x6f/0xb0 net/socket.c:1671
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c369
Code: 8d b6 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 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f96efed9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00000000000022c0 RCX: 000000000045c369
RDX: 000000000000001c RSI: 0000000020000040 RDI: 0000000000000004
RBP: 000000000078bfe0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bfac
R13: 00007ffc0593970f R14: 00007f96efeda9c0 R15: 000000000078bfac
Kernel Offset: disabled
Rebooting in 86400 seconds..