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: 0 PID: 30143 Comm: syz-executor.4 Not tainted 4.19.134-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nfnetlink_parse_nat net/netfilter/nf_nat_core.c:847 [inline] RIP: 0010:nfnetlink_parse_nat_setup+0x23f/0x640 net/netfilter/nf_nat_core.c:884 Code: d5 7d fb 49 8d 7e 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b1 03 00 00 48 8b 7c 24 08 4c 89 fe <41> ff 56 38 31 ff 89 c3 89 c6 e8 42 d6 7d fb 85 db 0f 88 55 02 00 RSP: 0018:ffff88809f8af198 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000e31a000 RDX: 1ffffffff0be1fa3 RSI: ffff88809f8af210 RDI: ffff88809f8af260 RBP: ffff888092110500 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffffff85f0fce0 R15: ffff88809f8af210 FS: 00007f515a5b1700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005624728f36ef CR3: 00000000911d3000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ctnetlink_parse_nat_setup+0xb6/0x640 net/netfilter/nf_conntrack_netlink.c:1521 ctnetlink_setup_nat net/netfilter/nf_conntrack_netlink.c:1596 [inline] ctnetlink_create_conntrack+0x505/0x12c0 net/netfilter/nf_conntrack_netlink.c:1984 ctnetlink_new_conntrack+0x4f3/0xde0 net/netfilter/nf_conntrack_netlink.c:2114 nfnetlink_rcv_msg+0xc4f/0xf60 net/netfilter/nfnetlink.c:228 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455 nfnetlink_rcv+0x1b2/0x41b net/netfilter/nfnetlink.c:560 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6bb/0xc40 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:632 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2115 __sys_sendmsg net/socket.c:2153 [inline] __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2160 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c1f9 Code: 8d 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 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f515a5b0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000027a40 RCX: 000000000045c1f9 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c R13: 00007fff9c23cddf R14: 00007f515a5b19c0 R15: 000000000078bf0c Modules linked in: ---[ end trace fedb7280fb1aaa6f ]--- RIP: 0010:nfnetlink_parse_nat net/netfilter/nf_nat_core.c:847 [inline] RIP: 0010:nfnetlink_parse_nat_setup+0x23f/0x640 net/netfilter/nf_nat_core.c:884 Code: d5 7d fb 49 8d 7e 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b1 03 00 00 48 8b 7c 24 08 4c 89 fe <41> ff 56 38 31 ff 89 c3 89 c6 e8 42 d6 7d fb 85 db 0f 88 55 02 00 RSP: 0018:ffff88809f8af198 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000e31a000 RDX: 1ffffffff0be1fa3 RSI: ffff88809f8af210 RDI: ffff88809f8af260 RBP: ffff888092110500 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffffff85f0fce0 R15: ffff88809f8af210 FS: 00007f515a5b1700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005624728f36ef CR3: 00000000911d3000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400