device veth0_macvtap left promiscuous mode
device veth1_vlan left promiscuous mode
device veth0_vlan left promiscuous mode
general protection fault, probably for non-canonical address 0xdffffc000000002a: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000150-0x0000000000000157]
CPU: 1 PID: 10851 Comm: kworker/u4:7 Not tainted 5.12.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: netns cleanup_net
RIP: 0010:__fib6_drop_pcpu_from.part.0+0xfc/0x280 net/ipv6/ip6_fib.c:977
Code: 48 c1 e8 03 80 3c 18 00 0f 85 36 01 00 00 4d 8b 3f 4d 85 ff 0f 84 5a ff ff ff e8 5f a7 bc f9 49 8d 7f 70 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 5d 01 00 00 49 8b 47 70 48 3b 44 24 08 0f 85 31
RSP: 0018:ffffc9000178f0b8 EFLAGS: 00010202
RAX: 000000000000002a RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff88801f0e54c0 RSI: ffffffff87b74a71 RDI: 0000000000000151
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fa99947
R10: ffffffff87b749fd R11: 0000000000000000 R12: 0000000000000007
R13: ffff88801af3baa0 R14: fffffbfff1b8a42c R15: 00000000000000e1
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00a7ab450 CR3: 000000001860e000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __fib6_drop_pcpu_from net/ipv6/ip6_fib.c:959 [inline]
 fib6_drop_pcpu_from net/ipv6/ip6_fib.c:1020 [inline]
 fib6_purge_rt+0x6a3/0x810 net/ipv6/ip6_fib.c:1031
 fib6_del_route net/ipv6/ip6_fib.c:1982 [inline]
 fib6_del+0xa92/0x15a0 net/ipv6/ip6_fib.c:2027
 fib6_clean_node+0x398/0x5c0 net/ipv6/ip6_fib.c:2189
 fib6_walk_continue+0x4aa/0x8e0 net/ipv6/ip6_fib.c:2111
 fib6_walk+0x182/0x370 net/ipv6/ip6_fib.c:2159
 fib6_clean_tree+0xdb/0x120 net/ipv6/ip6_fib.c:2239
 __fib6_clean_all+0x120/0x290 net/ipv6/ip6_fib.c:2255
 rt6_sync_down_dev net/ipv6/route.c:4768 [inline]
 rt6_disable_ip+0x77f/0x890 net/ipv6/route.c:4773
 addrconf_ifdown.isra.0+0xf6/0x15b0 net/ipv6/addrconf.c:3706
 addrconf_notify+0x55c/0x23e0 net/ipv6/addrconf.c:3631
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2075
 call_netdevice_notifiers_extack net/core/dev.c:2087 [inline]
 call_netdevice_notifiers net/core/dev.c:2101 [inline]
 dev_close_many+0x2ff/0x620 net/core/dev.c:1676
 unregister_netdevice_many+0x3fd/0x1760 net/core/dev.c:10911
 default_device_exit_batch+0x2fa/0x3c0 net/core/dev.c:11454
 ops_exit_list+0x10d/0x160 net/core/net_namespace.c:178
 cleanup_net+0x4ea/0xb10 net/core/net_namespace.c:595
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
---[ end trace 1eb676edc655e24a ]---
RIP: 0010:__fib6_drop_pcpu_from.part.0+0xfc/0x280 net/ipv6/ip6_fib.c:977
Code: 48 c1 e8 03 80 3c 18 00 0f 85 36 01 00 00 4d 8b 3f 4d 85 ff 0f 84 5a ff ff ff e8 5f a7 bc f9 49 8d 7f 70 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 5d 01 00 00 49 8b 47 70 48 3b 44 24 08 0f 85 31
RSP: 0018:ffffc9000178f0b8 EFLAGS: 00010202
RAX: 000000000000002a RBX: dffffc0000000000 RCX: 0000000000000000
RDX: ffff88801f0e54c0 RSI: ffffffff87b74a71 RDI: 0000000000000151
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8fa99947
R10: ffffffff87b749fd R11: 0000000000000000 R12: 0000000000000007
R13: ffff88801af3baa0 R14: fffffbfff1b8a42c R15: 00000000000000e1
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00a7ab450 CR3: 000000001860e000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400