kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 12181 Comm: syz-executor4 Not tainted 4.15.0-rc5+ #180 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nf_tables_dump_obj_done+0x3d/0x70 net/netfilter/nf_tables_api.c:4703 RSP: 0018:ffff8801be21f2a0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff846167dd RDX: 0000000000000000 RSI: ffffc900026f4000 RDI: ffff8801ba1032b0 RBP: ffff8801be21f2a8 R08: 0000000000000000 R09: 1ffff10037c43e0d R10: ffff8801be21f030 R11: 0000000000000002 R12: 1ffff10037c43e5d R13: ffffffff846167d0 R14: ffff8801ba103281 R15: ffff8801ba103300 FS: 00007fb9e7c96700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020730f70 CR3: 00000001ba6a5004 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netlink_dump+0x97a/0xcf0 net/netlink/af_netlink.c:2251 __netlink_dump_start+0x4f0/0x6d0 net/netlink/af_netlink.c:2319 netlink_dump_start include/linux/netlink.h:214 [inline] nf_tables_getobj+0x401/0xa00 net/netfilter/nf_tables_api.c:4763 nfnetlink_rcv_msg+0xbf0/0xd70 net/netfilter/nfnetlink.c:214 netlink_rcv_skb+0x224/0x470 net/netlink/af_netlink.c:2441 nfnetlink_rcv+0x200/0x1920 net/netfilter/nfnetlink.c:515 netlink_unicast_kernel net/netlink/af_netlink.c:1308 [inline] netlink_unicast+0x4c4/0x6b0 net/netlink/af_netlink.c:1334 netlink_sendmsg+0xa4a/0xe60 net/netlink/af_netlink.c:1897 sock_sendmsg_nosec net/socket.c:628 [inline] sock_sendmsg+0xca/0x110 net/socket.c:638 sock_write_iter+0x31a/0x5d0 net/socket.c:907 call_write_iter include/linux/fs.h:1772 [inline] new_sync_write fs/read_write.c:469 [inline] __vfs_write+0x684/0x970 fs/read_write.c:482 vfs_write+0x189/0x510 fs/read_write.c:544 SYSC_write fs/read_write.c:589 [inline] SyS_write+0xef/0x220 fs/read_write.c:581 entry_SYSCALL_64_fastpath+0x23/0x9a RIP: 0033:0x452ac9 RSP: 002b:00007fb9e7c95c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000071c0c8 RCX: 0000000000452ac9 RDX: 0000000000000480 RSI: 0000000020730f70 RDI: 0000000000000013 RBP: 00000000000004e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f55a0 R13: 00000000ffffffff R14: 00007fb9e7c966d4 R15: 0000000000000008 Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 30 48 8b 5b 28 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 75 1c 48 8b 3b e8 65 40 46 fd 48 89 df e8 5d 40 46 RIP: nf_tables_dump_obj_done+0x3d/0x70 net/netfilter/nf_tables_api.c:4703 RSP: ffff8801be21f2a0 ---[ end trace e2eadbd81856b0fa ]---