FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kasan: GPF could be caused by NULL-ptr deref or user memory access sp0: Synchronizing with TNC general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 30312 Comm: syz-executor.5 Not tainted 4.19.141-syzkaller #0 CPU: 0 PID: 30315 Comm: syz-executor.0 Not tainted 4.19.141-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 net/netfilter/nf_nat_core.c:336 [inline] RIP: 0010:nf_nat_setup_info+0x2f6/0x1f20 net/netfilter/nf_nat_core.c:431 Call Trace: Code: c1 ea 03 80 3c 02 00 0f 85 60 19 00 00 4a 8b 04 e5 e0 5e af 89 48 8d 1c d8 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 2c 19 00 00 48 8b 03 48 89 85 48 fe ff ff e8 11 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2fe lib/dump_stack.c:118 RSP: 0018:ffff88804da7eed0 EFLAGS: 00010246 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x14 lib/fault-inject.c:149 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900105a7000 RDX: 0000000000000000 RSI: ffffffff85ee48e7 RDI: ffffffff89af5f60 RBP: ffff88804da7f0b0 R08: 0000000000000000 R09: 0000000000000000 __should_failslab+0x115/0x180 mm/failslab.c:32 R10: 0000000000000005 R11: 000000002104dae5 R12: 0000000000000010 should_failslab+0x5/0xf mm/slab_common.c:1588 R13: ffff88804da7ef70 R14: ffff888051c0f200 R15: 0000000000000000 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc_node mm/slab.c:3304 [inline] kmem_cache_alloc_node+0x245/0x3b0 mm/slab.c:3647 FS: 00007fb5c8a25700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 __alloc_skb+0x71/0x560 net/core/skbuff.c:193 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 alloc_skb include/linux/skbuff.h:995 [inline] alloc_skb_with_frags+0x92/0x570 net/core/skbuff.c:5303 CR2: 0000001b31624000 CR3: 000000009f108000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sock_alloc_send_pskb+0x6e1/0x830 net/core/sock.c:2090 __ip_append_data+0x132d/0x24a0 net/ipv4/ip_output.c:983 __nf_nat_alloc_null_binding+0x164/0x1d0 net/netfilter/nf_nat_core.c:490 nfnetlink_parse_nat_setup+0x53a/0x640 net/netfilter/nf_nat_core.c:882 ip_make_skb+0x226/0x2a0 net/ipv4/ip_output.c:1512 udp_sendmsg+0x1c76/0x24f0 net/ipv4/udp.c:1130 ctnetlink_parse_nat_setup+0xb6/0x640 net/netfilter/nf_conntrack_netlink.c:1521 ctnetlink_setup_nat net/netfilter/nf_conntrack_netlink.c:1591 [inline] ctnetlink_create_conntrack+0x4bb/0x12c0 net/netfilter/nf_conntrack_netlink.c:1984 ctnetlink_new_conntrack+0x4f3/0xde0 net/netfilter/nf_conntrack_netlink.c:2114 inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:632 ___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2115 nfnetlink_rcv_msg+0xc4f/0xf60 net/netfilter/nfnetlink.c:228 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455 __sys_sendmmsg+0x195/0x470 net/socket.c:2210 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 __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45d4d9 Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f28fa813c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000027940 RCX: 000000000045d4d9 RDX: 0000000000000001 RSI: 0000000020000340 RDI: 0000000000000006 __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 RBP: 00007f28fa813ca0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe3ac8cfbf R14: 00007f28fa8149c0 R15: 000000000118cf4c do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45d4d9 Code: 5d b4 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb5c8a24c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000029240 RCX: 000000000045d4d9 RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000006 RBP: 000000000118cf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cf4c R13: 00007ffcaba14cdf R14: 00007fb5c8a259c0 R15: 000000000118cf4c Modules linked in: ---[ end trace b25a5c8d75ca67c3 ]--- 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 net/netfilter/nf_nat_core.c:336 [inline] RIP: 0010:nf_nat_setup_info+0x2f6/0x1f20 net/netfilter/nf_nat_core.c:431 Code: c1 ea 03 80 3c 02 00 0f 85 60 19 00 00 4a 8b 04 e5 e0 5e af 89 48 8d 1c d8 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 2c 19 00 00 48 8b 03 48 89 85 48 fe ff ff e8 11 RSP: 0018:ffff88804da7eed0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900105a7000 RDX: 0000000000000000 RSI: ffffffff85ee48e7 RDI: ffffffff89af5f60 RBP: ffff88804da7f0b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 000000002104dae5 R12: 0000000000000010 R13: ffff88804da7ef70 R14: ffff888051c0f200 R15: 0000000000000000 FS: 00007fb5c8a25700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffb70810000 CR3: 000000009f108000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400