device sit0 left promiscuous mode
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1509 Comm: syz-executor.1 Not tainted 5.1.0-rc6+ #163
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:fib6_drop_pcpu_from net/ipv6/ip6_fib.c:919 [inline]
RIP: 0010:fib6_purge_rt+0x49c/0x660 net/ipv6/ip6_fib.c:955
Code: 0f b6 3d 55 31 3f 03 31 ff 44 89 fe e8 ed a8 54 fb 45 84 ff 0f 84 a6 00 00 00 e8 9f a7 54 fb 49 8d 7e 70 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 67 01 00 00 48 89 f8 4d 8b 7e 70 48 c1 e8 03 80
RSP: 0018:ffff888069cdefa8 EFLAGS: 00010206
RAX: 000000000000004d RBX: dffffc0000000000 RCX: ffffc90012ef9000
RDX: 0000000000040000 RSI: ffffffff861be581 RDI: 0000000000000268
RBP: ffff888069cdf000 R08: ffff888086f72180 R09: ffffed1014ca7a36
R10: ffffed1014ca7a35 R11: ffff8880a653d1af R12: 0000000000000001
R13: ffff8880a653d180 R14: 00000000000001f8 R15: 0000000000000001
FS:  00007f61cd8bf700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffded690de0 CR3: 000000005661f000 CR4: 00000000001406e0
Call Trace:
 fib6_del_route net/ipv6/ip6_fib.c:1808 [inline]
 fib6_del+0xac2/0x10a0 net/ipv6/ip6_fib.c:1839
 fib6_clean_node+0x3a8/0x590 net/ipv6/ip6_fib.c:2001
 fib6_walk_continue+0x495/0x900 net/ipv6/ip6_fib.c:1923
 fib6_walk+0x9d/0x100 net/ipv6/ip6_fib.c:1971
 fib6_clean_tree+0xe0/0x120 net/ipv6/ip6_fib.c:2050
 __fib6_clean_all+0x118/0x2a0 net/ipv6/ip6_fib.c:2066
 fib6_clean_all+0x2b/0x40 net/ipv6/ip6_fib.c:2077
 rt6_sync_down_dev+0x134/0x150 net/ipv6/route.c:4153
 rt6_disable_ip+0x27/0x5f0 net/ipv6/route.c:4158
 addrconf_ifdown+0xa2/0x1220 net/ipv6/addrconf.c:3709
 addrconf_notify+0x19a/0x2250 net/ipv6/addrconf.c:3634
 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:1753
 call_netdevice_notifiers_extack net/core/dev.c:1765 [inline]
 call_netdevice_notifiers net/core/dev.c:1779 [inline]
 __dev_notify_flags+0x1e9/0x2c0 net/core/dev.c:7626
 dev_change_flags+0x10d/0x170 net/core/dev.c:7662
 devinet_ioctl+0xde6/0x1cf0 net/ipv4/devinet.c:1104
 inet_ioctl+0x36f/0x3b0 net/ipv4/af_inet.c:952
 sock_do_ioctl+0xde/0x300 net/socket.c:1037
 sock_ioctl+0x3f3/0x790 net/socket.c:1188
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0xd6e/0x1390 fs/ioctl.c:696
 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718
 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x458da9
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:00007f61cd8bec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000458da9
RDX: 0000000020000100 RSI: 0000000000008914 RDI: 0000000000000005
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f61cd8bf6d4
R13: 00000000004c4635 R14: 00000000004d7ec8 R15: 00000000ffffffff
Modules linked in:
---[ end trace c471c7a020a5bd01 ]---
RIP: 0010:fib6_drop_pcpu_from net/ipv6/ip6_fib.c:919 [inline]
RIP: 0010:fib6_purge_rt+0x49c/0x660 net/ipv6/ip6_fib.c:955
Code: 0f b6 3d 55 31 3f 03 31 ff 44 89 fe e8 ed a8 54 fb 45 84 ff 0f 84 a6 00 00 00 e8 9f a7 54 fb 49 8d 7e 70 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 67 01 00 00 48 89 f8 4d 8b 7e 70 48 c1 e8 03 80
RSP: 0018:ffff888069cdefa8 EFLAGS: 00010206
RAX: 000000000000004d RBX: dffffc0000000000 RCX: ffffc90012ef9000
RDX: 0000000000040000 RSI: ffffffff861be581 RDI: 0000000000000268
RBP: ffff888069cdf000 R08: ffff888086f72180 R09: ffffed1014ca7a36
R10: ffffed1014ca7a35 R11: ffff8880a653d1af R12: 0000000000000001
R13: ffff8880a653d180 R14: 00000000000001f8 R15: 0000000000000001
FS:  00007f61cd8bf700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffded690de0 CR3: 000000005661f000 CR4: 00000000001406e0