------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(class_idx > MAX_LOCKDEP_KEYS)
WARNING: CPU: 1 PID: 31875 at kernel/locking/lockdep.c:3673 __lock_acquire+0x1887/0x3fb0 kernel/locking/lockdep.c:3673
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 31875 Comm: syz-executor.0 Not tainted 5.0.0+ #106
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:__lock_acquire+0x1887/0x3fb0 kernel/locking/lockdep.c:3673
Code: d2 0f 85 7b 1f 00 00 44 8b 3d a9 11 07 08 45 85 ff 0f 85 20 f3 ff ff 48 c7 c6 20 5b 6b 87 48 c7 c7 60 31 6b 87 e8 37 ef eb ff <0f> 0b e9 09 f3 ff ff 0f 0b e9 41 f1 ff ff 8b 1d c5 38 05 09 85 db
RSP: 0018:ffff88805bcaee68 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 00000000000169f3 RSI: ffffffff815ad706 RDI: ffffed100b795dbf
RBP: ffff88805bcaefa0 R08: ffff8880a8788500 R09: fffffbfff1133645
R10: fffffbfff1133644 R11: ffffffff8899b223 R12: 0000000099f7f6bb
R13: 0000000000000016 R14: 00000000000c16bb R15: 0000000000000000
 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4211
 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
 _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144
 spin_lock include/linux/spinlock.h:329 [inline]
 __queue_work+0x23d/0x1180 kernel/workqueue.c:1449
 __queue_delayed_work+0x1d6/0x270 kernel/workqueue.c:1638
 mod_delayed_work_on+0xd8/0x200 kernel/workqueue.c:1712
 mod_delayed_work include/linux/workqueue.h:524 [inline]
 addrconf_mod_dad_work+0x3f/0xa0 net/ipv6/addrconf.c:328
 addrconf_dad_start+0x76/0xb0 net/ipv6/addrconf.c:4012
 addrconf_add_linklocal+0x28c/0x3c0 net/ipv6/addrconf.c:3191
 addrconf_addr_gen+0x34d/0x3a0 net/ipv6/addrconf.c:3314
 addrconf_dev_config+0x1ea/0x2c0 net/ipv6/addrconf.c:3357
 addrconf_notify+0x4b9/0x2260 net/ipv6/addrconf.c:3592
 notifier_call_chain+0xc7/0x240 kernel/notifier.c:93
 __raw_notifier_call_chain kernel/notifier.c:394 [inline]
 raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:401
 call_netdevice_notifiers_info+0x3f/0x90 net/core/dev.c:1739
 call_netdevice_notifiers_extack net/core/dev.c:1751 [inline]
 call_netdevice_notifiers net/core/dev.c:1765 [inline]
 dev_open net/core/dev.c:1436 [inline]
 dev_open+0x143/0x160 net/core/dev.c:1424
 ipmr_new_tunnel+0x3d3/0x4d0 net/ipv4/ipmr.c:511
 vif_add+0x1d3/0x1070 net/ipv4/ipmr.c:871
 ip_mroute_setsockopt+0xdd4/0xed0 net/ipv4/ipmr.c:1460
 do_ip_setsockopt.isra.0+0x5cf/0x3dd0 net/ipv4/ip_sockglue.c:638
 ip_setsockopt+0x49/0x100 net/ipv4/ip_sockglue.c:1246
 raw_setsockopt+0xe0/0x100 net/ipv4/raw.c:860
 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:3120
 __sys_setsockopt+0x180/0x280 net/socket.c:2046
 __do_sys_setsockopt net/socket.c:2057 [inline]
 __se_sys_setsockopt net/socket.c:2054 [inline]
 __x64_sys_setsockopt+0xbe/0x150 net/socket.c:2054
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458209
Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f5ba7dcfc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000458209
RDX: 00000000000000ca RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000010 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 00007f5ba7dd06d4
R13: 00000000004c6043 R14: 00000000004da660 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..