WARNING: CPU: 0 PID: 10546 at kernel/locking/lockdep.c:773 look_up_lock_class+0x1ac/0x2a0 kernel/locking/lockdep.c:772 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 10546 Comm: syz-executor.0 Not tainted 5.2.0+ #37 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+0x1d8/0x2f8 lib/dump_stack.c:113 panic+0x29b/0x7d9 kernel/panic.c:219 __warn+0x22f/0x230 kernel/panic.c:576 report_bug+0x190/0x290 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] do_error_trap+0xd7/0x440 arch/x86/kernel/traps.c:272 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1026 RIP: 0010:look_up_lock_class+0x1ac/0x2a0 kernel/locking/lockdep.c:772 Code: 54 00 4c 3b 33 74 7d 48 8b 45 c8 42 80 3c 28 00 48 8b 5d d0 74 08 48 89 df e8 00 87 54 00 48 c7 c0 70 e4 3c 89 48 39 03 74 5a <0f> 0b eb 56 e8 0b 50 04 02 45 31 e4 48 c7 c7 00 24 7d 88 44 89 fe RSP: 0018:ffff8880898df1b8 EFLAGS: 00010002 RAX: ffffffff893ce470 RBX: ffff888097b31820 RCX: ffff888097b31820 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff888097b31820 RBP: ffff8880898df1f0 R08: dffffc0000000000 R09: 0000000000000000 R10: fffffbfff11fb97d R11: 0000000000000000 R12: ffffffff89604d40 R13: dffffc0000000000 R14: ffffffff889d6acc R15: 0000000000000000 register_lock_class+0xd8/0x11a0 kernel/locking/lockdep.c:1117 __lock_acquire+0x184/0x4750 kernel/locking/lockdep.c:3762 lock_acquire+0x158/0x250 kernel/locking/lockdep.c:4413 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x34/0x50 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:343 [inline] lock_sock_nested+0x45/0x120 net/core/sock.c:2917 lock_sock include/net/sock.h:1522 [inline] do_ipv6_setsockopt+0x2e5/0x3bd0 net/ipv6/ipv6_sockglue.c:165 ipv6_setsockopt+0x51/0x170 net/ipv6/ipv6_sockglue.c:944 udpv6_setsockopt+0x7b/0x90 net/ipv6/udp.c:1558 sock_common_setsockopt+0x99/0xb0 net/core/sock.c:3130 __sys_setsockopt+0x683/0x870 net/socket.c:2084 __do_sys_setsockopt net/socket.c:2100 [inline] __se_sys_setsockopt net/socket.c:2097 [inline] __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2097 do_syscall_64+0xfe/0x140 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459829 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:00007fc6d7ef8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000459829 RDX: 0000000000000023 RSI: 0000000000000029 RDI: 0000000000000006 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc6d7ef96d4 R13: 00000000004ced30 R14: 00000000004dd678 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..