WARNING: CPU: 0 PID: 11470 at kernel/locking/lockdep.c:702 arch_local_save_flags arch/x86/include/asm/paravirt.h:761 [inline]
WARNING: CPU: 0 PID: 11470 at kernel/locking/lockdep.c:702 look_up_lock_class kernel/locking/lockdep.c:693 [inline]
WARNING: CPU: 0 PID: 11470 at kernel/locking/lockdep.c:702 register_lock_class+0xb94/0x2240 kernel/locking/lockdep.c:752
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 11470 Comm: syz-executor.3 Not tainted 5.0.0-rc1+ #1
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+0x113/0x167 lib/dump_stack.c:113
 panic+0x212/0x40b kernel/panic.c:214
 __warn.cold.8+0x1b/0x38 kernel/panic.c:571
 report_bug+0x1a4/0x200 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:702 [inline]
RIP: 0010:register_lock_class+0xb94/0x2240 kernel/locking/lockdep.c:752
Code: 00 48 89 ca 4d 8b 76 c0 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 cb 11 00 00 4c 89 31 e9 f9 f7 ff ff 0f 0b <0f> 0b e9 db f6 ff ff 4c 8d 3c 80 48 8d 70 01 49 c1 e7 06 48 b8 00
RSP: 0018:ffff88808e297950 EFLAGS: 00010087
RAX: 0000000000000004 RBX: ffffffff897edc80 RCX: ffff8880a83077e0
RDX: 1ffffffff1389f44 RSI: 0000000000000000 RDI: ffff8880a83077f8
RBP: ffff88808e297a20 R08: 1ffff11011c52f33 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000003
R13: 0000000000000000 R14: ffffffff87855c00 R15: ffffffff877420a0
 __lock_acquire+0x129/0x4760 kernel/locking/lockdep.c:3224
 lock_acquire+0x173/0x3d0 kernel/locking/lockdep.c:3841
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:168
 spin_lock_bh include/linux/spinlock.h:334 [inline]
 lock_sock_nested+0x3a/0x100 net/core/sock.c:2783
kobject: 'loop4' (0000000014da3874): kobject_uevent_env
 lock_sock include/net/sock.h:1506 [inline]
 inet_autobind+0x13/0x160 net/ipv4/af_inet.c:179
 inet_dgram_connect+0x1db/0x270 net/ipv4/af_inet.c:569
 __sys_connect+0x20d/0x2d0 net/socket.c:1664
 __do_sys_connect net/socket.c:1675 [inline]
 __se_sys_connect net/socket.c:1672 [inline]
 __x64_sys_connect+0x6e/0xb0 net/socket.c:1672
 do_syscall_64+0xd0/0x4d0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x459279
Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f08b0f14c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279
RDX: 000000000000001c RSI: 0000000020000000 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f08b0f156d4
R13: 00000000004bf74d R14: 00000000004d0c18 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..