WARNING: CPU: 0 PID: 369 at kernel/locking/lockdep.c:746 arch_local_save_flags arch/x86/include/asm/paravirt.h:762 [inline]
WARNING: CPU: 0 PID: 369 at kernel/locking/lockdep.c:746 arch_local_save_flags arch/x86/include/asm/paravirt.h:760 [inline]
WARNING: CPU: 0 PID: 369 at kernel/locking/lockdep.c:746 look_up_lock_class kernel/locking/lockdep.c:737 [inline]
WARNING: CPU: 0 PID: 369 at kernel/locking/lockdep.c:746 register_lock_class+0xe10/0x1860 kernel/locking/lockdep.c:1090
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 369 Comm: syz-executor.0 Not tainted 5.1.0-rc5+ #76
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+0x172/0x1f0 lib/dump_stack.c:113
 panic+0x2cb/0x65c kernel/panic.c:214
 __warn.cold+0x20/0x45 kernel/panic.c:571
 report_bug+0x263/0x2b0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272
 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:973
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:746 [inline]
RIP: 0010:register_lock_class+0xe10/0x1860 kernel/locking/lockdep.c:1090
Code: 00 48 89 da 4d 8b 76 c0 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 23 07 00 00 4c 89 33 e9 e3 f4 ff ff 0f 0b <0f> 0b e9 ea f3 ff ff 44 89 e0 4c 8b 95 50 ff ff ff 83 c0 01 4c 8b
RSP: 0018:ffff88809953f5f0 EFLAGS: 00010087
RAX: dffffc0000000000 RBX: ffff8880a1bc71a0 RCX: 0000000000000000
RDX: 1ffff11014378e37 RSI: 0000000000000000 RDI: ffff8880a1bc71b8
RBP: ffff88809953f6b8 R08: 1ffff110132a7ec6 R09: ffffffff8a5c8a20
R10: ffffffff8a0b3740 R11: 0000000000000000 R12: ffffffff8a11db00
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff87fb9e60
 __lock_acquire+0xf9/0x3fb0 kernel/locking/lockdep.c:3582
 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:168
 spin_lock_bh include/linux/spinlock.h:334 [inline]
 lock_sock_nested+0x41/0x120 net/core/sock.c:2912
 lock_sock include/net/sock.h:1513 [inline]
 do_ipv6_setsockopt.isra.0+0x27e/0x49e0 net/ipv6/ipv6_sockglue.c:167
 compat_ipv6_setsockopt net/ipv6/ipv6_sockglue.c:977 [inline]
 compat_ipv6_setsockopt+0x114/0x210 net/ipv6/ipv6_sockglue.c:958
 compat_udpv6_setsockopt+0x68/0xb0 net/ipv6/udp.c:1582
 compat_sock_common_setsockopt+0xb4/0x150 net/core/sock.c:3131
 __compat_sys_setsockopt+0x181/0x380 net/compat.c:382
 __do_compat_sys_setsockopt net/compat.c:395 [inline]
 __se_compat_sys_setsockopt net/compat.c:392 [inline]
 __ia32_compat_sys_setsockopt+0xbd/0x150 net/compat.c:392
 do_syscall_32_irqs_on arch/x86/entry/common.c:326 [inline]
 do_fast_syscall_32+0x281/0xc98 arch/x86/entry/common.c:397
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7ff7869
Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f7fd20cc EFLAGS: 00000296 ORIG_RAX: 000000000000016e
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000029
RDX: 0000000000000023 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..