general protection fault, probably for non-canonical address 0xdffffc00060e8d2f: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x0000000030746978-0x000000003074697f] CPU: 0 PID: 9781 Comm: syz-executor.2 Not tainted 5.5.0-next-20200207-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_splice include/linux/list.h:422 [inline] RIP: 0010:list_splice include/linux/list.h:438 [inline] RIP: 0010:nf_flow_table_block_setup net/netfilter/nf_flow_table_offload.c:826 [inline] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 net/netfilter/nf_flow_table_offload.c:883 Code: bc 24 50 ff ff ff 48 ba 00 00 00 00 00 fc ff df 4d 8b ae 00 02 00 00 4d 8b a4 24 58 ff ff ff 49 8d 7f 08 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 cd 01 00 00 4c 89 e2 49 89 47 08 48 b8 00 00 00 RSP: 0018:ffffc90002a57228 EFLAGS: 00010202 RAX: ffff8880931a1a50 RBX: 1ffff9200054ae49 RCX: 00000000060e8d2f RDX: dffffc0000000000 RSI: ffffffff868860ee RDI: 000000003074697b RBP: ffffc90002a57370 R08: ffff88804d5d40c0 R09: fffff5200054ae55 R10: fffff5200054ae54 R11: ffffc90002a572a6 R12: 0000000000000000 R13: ffff8880931a1a50 R14: ffff8880931a1850 R15: 0000000030746973 FS: 00007f090fef6700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fee703b3000 CR3: 00000000a1c13000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nft_register_flowtable_net_hooks net/netfilter/nf_tables_api.c:6185 [inline] nf_tables_newflowtable+0x1352/0x1d90 net/netfilter/nf_tables_api.c:6302 nfnetlink_rcv_batch+0x8c8/0x1790 net/netfilter/nfnetlink.c:433 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:543 [inline] nfnetlink_rcv+0x3e7/0x460 net/netfilter/nfnetlink.c:561 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:672 ____sys_sendmsg+0x753/0x880 net/socket.c:2343 ___sys_sendmsg+0x100/0x170 net/socket.c:2397 __sys_sendmsg+0x105/0x1d0 net/socket.c:2430 __do_sys_sendmsg net/socket.c:2439 [inline] __se_sys_sendmsg net/socket.c:2437 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b399 Code: ad b6 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f090fef5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f090fef66d4 RCX: 000000000045b399 RDX: 0000000000000000 RSI: 0000000020003e00 RDI: 0000000000000003 RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000942 R14: 00000000004caa51 R15: 000000000075bfd4 Modules linked in: ---[ end trace 17e76e3f88b7f8f9 ]--- RIP: 0010:__list_splice include/linux/list.h:422 [inline] RIP: 0010:list_splice include/linux/list.h:438 [inline] RIP: 0010:nf_flow_table_block_setup net/netfilter/nf_flow_table_offload.c:826 [inline] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 net/netfilter/nf_flow_table_offload.c:883 Code: bc 24 50 ff ff ff 48 ba 00 00 00 00 00 fc ff df 4d 8b ae 00 02 00 00 4d 8b a4 24 58 ff ff ff 49 8d 7f 08 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 cd 01 00 00 4c 89 e2 49 89 47 08 48 b8 00 00 00 RSP: 0018:ffffc90002a57228 EFLAGS: 00010202 RAX: ffff8880931a1a50 RBX: 1ffff9200054ae49 RCX: 00000000060e8d2f RDX: dffffc0000000000 RSI: ffffffff868860ee RDI: 000000003074697b RBP: ffffc90002a57370 R08: ffff88804d5d40c0 R09: fffff5200054ae55 R10: fffff5200054ae54 R11: ffffc90002a572a6 R12: 0000000000000000 R13: ffff8880931a1a50 R14: ffff8880931a1850 R15: 0000000030746973 FS: 00007f090fef6700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fee703b3000 CR3: 00000000a1c13000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400