IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready 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 Modules linked in: CPU: 0 PID: 6998 Comm: syz-executor.5 Not tainted 4.15.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:get_info+0x14f/0x5a0 net/ipv6/netfilter/ip6_tables.c:997 RSP: 0018:ffff88008ee779d8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff88008ee77b38 RCX: 0000000000000000 RDX: 0000000000000023 RSI: ffff880098bd0c70 RDI: 0000000000000118 RBP: ffff88008ee77b60 R08: ffff880098bd0c90 R09: 0000000000000006 R10: ffff88008ee77938 R11: ffff880098bd03c0 R12: ffff880095128080 R13: 0000000000000100 R14: ffff88008ee77d68 R15: ffff88008ee77a18 FS: 0000000001a8c940(0000) GS:ffff8800aea00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd43903c90 CR3: 000000009b0d4000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_ipt_get_ctl+0x137/0x9d0 net/ipv4/netfilter/ip_tables.c:1704 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline] nf_getsockopt+0x5f/0xc0 net/netfilter/nf_sockopt.c:122 ip_getsockopt+0x11b/0x1b0 net/ipv4/ip_sockglue.c:1573 tcp_getsockopt+0x6a/0xd0 net/ipv4/tcp.c:3326 sock_common_getsockopt+0x73/0xf0 net/core/sock.c:2937 SYSC_getsockopt net/socket.c:1852 [inline] SyS_getsockopt+0x15b/0x300 net/socket.c:1834 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x45db0a RSP: 002b:00007fffbaf51538 EFLAGS: 00000246 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045db0a RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007fffbaf5155c R09: 0000000000000000 R10: 000000000071b388 R11: 0000000000000246 R12: 00000000004c8784 R13: 000000000071ce80 R14: 000000000071b388 R15: 000000000071b380 Code: 89 e7 e8 55 a3 b8 ff 48 3d 00 f0 ff ff 49 89 c5 0f 87 d7 02 00 00 49 8d 7d 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 bd 03 00 00 49 8b 45 18 48 89 85 90 fe ff ff RIP: get_info+0x14f/0x5a0 net/ipv6/netfilter/ip6_tables.c:997 RSP: ffff88008ee779d8 ---[ end trace 05ae4f258c93e047 ]---