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: 1 PID: 28441 Comm: syz-executor.0 Not tainted 4.19.96-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline] RIP: 0010:__nf_nat_l4proto_find net/netfilter/nf_nat_core.c:73 [inline] RIP: 0010:get_unique_tuple+0x27a/0x1d40 net/netfilter/nf_nat_core.c:336 Code: c1 e9 03 80 3c 11 00 0f 85 cb 17 00 00 4a 8b 14 e5 40 df ce 89 4c 8d 24 c2 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 97 17 00 00 49 8b 04 24 48 89 85 08 ff ff ff e8 RSP: 0018:ffff8880a7ceed70 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880a7ceef28 RCX: 1ffffffff139dbf8 RDX: 0000000000000000 RSI: ffffffff85fd93a7 RDI: ffffffff89cedfc0 RBP: ffff8880a7ceeec8 R08: ffff88804a2b64c0 R09: ffffed1015d24733 R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000000 R13: 0000000000000001 R14: ffff8880a4623480 R15: ffff8880a7ceef78 FS: 00007f94226bd700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffafd21f58 CR3: 000000008030c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nf_nat_setup_info+0x212/0x9e0 net/netfilter/nf_nat_core.c:431 __nf_nat_alloc_null_binding+0x164/0x1d0 net/netfilter/nf_nat_core.c:490 nfnetlink_parse_nat_setup+0x3ca/0x450 net/netfilter/nf_nat_core.c:882 ctnetlink_parse_nat_setup+0xc5/0x660 net/netfilter/nf_conntrack_netlink.c:1518 ctnetlink_setup_nat net/netfilter/nf_conntrack_netlink.c:1588 [inline] ctnetlink_create_conntrack+0x4ea/0x1300 net/netfilter/nf_conntrack_netlink.c:1981 ctnetlink_new_conntrack+0x527/0xe50 net/netfilter/nf_conntrack_netlink.c:2111 nfnetlink_rcv_msg+0xd0d/0xfcf net/netfilter/nfnetlink.c:228 netlink_rcv_skb+0x17d/0x460 net/netlink/af_netlink.c:2454 nfnetlink_rcv+0x1c0/0x460 net/netfilter/nfnetlink.c:560 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45aff9 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:00007f94226bcc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f94226bd6d4 RCX: 000000000045aff9 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000008bd R14: 00000000004c9d78 R15: 000000000075bf2c Modules linked in: ---[ end trace b27d249af05671c9 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline] RIP: 0010:__nf_nat_l4proto_find net/netfilter/nf_nat_core.c:73 [inline] RIP: 0010:get_unique_tuple+0x27a/0x1d40 net/netfilter/nf_nat_core.c:336 Code: c1 e9 03 80 3c 11 00 0f 85 cb 17 00 00 4a 8b 14 e5 40 df ce 89 4c 8d 24 c2 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 97 17 00 00 49 8b 04 24 48 89 85 08 ff ff ff e8 RSP: 0018:ffff8880a7ceed70 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880a7ceef28 RCX: 1ffffffff139dbf8 RDX: 0000000000000000 RSI: ffffffff85fd93a7 RDI: ffffffff89cedfc0 RBP: ffff8880a7ceeec8 R08: ffff88804a2b64c0 R09: ffffed1015d24733 R10: ffffed1015d24732 R11: ffff8880ae923993 R12: 0000000000000000 R13: 0000000000000001 R14: ffff8880a4623480 R15: ffff8880a7ceef78 FS: 00007f94226bd700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001d76290 CR3: 000000008030c000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400