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: 9576 Comm: syz-executor452 Not tainted 5.5.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:hash_netport4_uadt+0x218/0xff0 net/netfilter/ipset/ip_set_hash_netport.c:166 Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4d 0a 00 00 4c 89 e2 45 8b 6d 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4c RSP: 0018:ffffc90001df7150 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffffc90001df7310 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff86811235 RDI: ffff8880a04b6830 RBP: ffffc90001df72a8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 0000000000000000 R13: 0000000004000000 R14: ffffc90001df7210 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:00000000099ad840 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020000f86 CR3: 000000009fa65000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_set_utest+0x55b/0x890 net/netfilter/ipset/ip_set_core.c:1867 nfnetlink_rcv_msg+0xcf2/0xfb0 net/netfilter/nfnetlink.c:229 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 nfnetlink_rcv+0x1ba/0x460 net/netfilter/nfnetlink.c:563 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:639 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:659 ____sys_sendmsg+0x753/0x880 net/socket.c:2330 ___sys_sendmsg+0x100/0x170 net/socket.c:2384 __sys_sendmsg+0x105/0x1d0 net/socket.c:2417 __compat_sys_sendmsg net/compat.c:642 [inline] __do_compat_sys_sendmsg net/compat.c:649 [inline] __se_compat_sys_sendmsg net/compat.c:646 [inline] __ia32_compat_sys_sendmsg+0x7a/0xb0 net/compat.c:646 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline] do_fast_syscall_32+0x27b/0xe16 arch/x86/entry/common.c:408 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7f4ba39 Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000fffc4f6c EFLAGS: 00000202 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000180 RDX: 0000000000000000 RSI: 00000000080ea080 RDI: 00000000fffc4fc0 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 8da47ccd27edaebf ]--- RIP: 0010:hash_netport4_uadt+0x218/0xff0 net/netfilter/ipset/ip_set_hash_netport.c:166 Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4d 0a 00 00 4c 89 e2 45 8b 6d 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 4c RSP: 0018:ffffc90001df7150 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffffc90001df7310 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff86811235 RDI: ffff8880a04b6830 RBP: ffffc90001df72a8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 0000000000000000 R13: 0000000004000000 R14: ffffc90001df7210 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:00000000099ad840 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000020000f86 CR3: 000000009fa65000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400