// https://syzkaller.appspot.com/bug?id=4c7ffdff69d201e775b180cc26295815d07b9a17 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul, /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul, /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/(intptr_t)-1, /*offset=*/0ul); const char* reason; (void)reason; intptr_t res = 0; if (write(1, "executing program\n", sizeof("executing program\n") - 1)) { } // socket$nl_xfrm arguments: [ // domain: const = 0x10 (8 bytes) // type: const = 0x3 (8 bytes) // proto: const = 0x6 (4 bytes) // ] // returns sock_nl_xfrm res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/6); if (res != -1) r[0] = res; // sendmsg$nl_xfrm arguments: [ // fd: sock_nl_xfrm (resource) // msg: ptr[in, msghdr_netlink[netlink_msg_xfrm]] { // msghdr_netlink[netlink_msg_xfrm] { // addr: nil // addrlen: len = 0x0 (4 bytes) // pad = 0x0 (4 bytes) // vec: ptr[in, iovec[in, netlink_msg_xfrm]] { // iovec[in, netlink_msg_xfrm] { // addr: ptr[in, netlink_msg_xfrm] { // union netlink_msg_xfrm { // updpolicy: netlink_msg_t[const[XFRM_MSG_UPDPOLICY, int16], // xfrm_userpolicy_info, xfrma_policy] { // len: len = 0xfc (4 bytes) // type: const = 0x19 (2 bytes) // flags: netlink_msg_flags = 0x1 (2 bytes) // seq: int32 = 0x0 (4 bytes) // pid: int32 = 0x0 (4 bytes) // payload: xfrm_userpolicy_info { // sel: xfrm_selector { // daddr: union xfrm_address_t { // in6: union ipv6_addr { // rand_addr: buffer: {20 01 00 00 00 00 00 00 00 00 // 00 00 00 00 00 00} (length 0x10) // } // } // saddr: union xfrm_address_t { // in: union ipv4_addr { // local: ipv4_addr_t[const[170, int8]] { // a0: const = 0xac (1 bytes) // a1: const = 0x14 (1 bytes) // a2: const = 0x14 (1 bytes) // a3: const = 0xaa (1 bytes) // } // } // } // dport: int16be = 0x0 (2 bytes) // dport_mask: int16be = 0x5 (2 bytes) // sport: int16be = 0x0 (2 bytes) // sport_mask: int16be = 0x0 (2 bytes) // family: xfrm_family = 0xa (2 bytes) // prefixlen_d: xfrm_prefixlens = 0x0 (1 bytes) // prefixlen_s: xfrm_prefixlens = 0x0 (1 bytes) // proto: ipv6_types = 0x0 (1 bytes) // pad = 0x0 (3 bytes) // ifindex: ifindex (resource) // user: uid (resource) // } // lft: xfrm_lifetime_cfg { // soft_byte_limit: int64 = 0x0 (8 bytes) // hard_byte_limit: int64 = 0xa9 (8 bytes) // soft_packet_limit: int64 = 0x0 (8 bytes) // hard_packet_limit: int64 = 0x0 (8 bytes) // soft_add_expires_seconds: int64 = 0x0 (8 bytes) // hard_add_expires_seconds: int64 = 0xffffffffffffffff // (8 bytes) soft_use_expires_seconds: int64 = 0x0 (8 // bytes) hard_use_expires_seconds: int64 = 0x0 (8 bytes) // } // curlft: xfrm_lifetime_cur { // bytes: int64 = 0x0 (8 bytes) // packets: int64 = 0xa00 (8 bytes) // add_time: int64 = 0x40800000000000 (8 bytes) // use_time: int64 = 0x800000000000000 (8 bytes) // } // priority: int32 = 0x0 (4 bytes) // index: int32 = 0x0 (4 bytes) // dir: xfrm_policy_dir = 0x0 (1 bytes) // action: xfrm_policy_actions = 0x0 (1 bytes) // flags: xfrm_policy_flags = 0x0 (1 bytes) // share: xfrm_policy_shares = 0x0 (1 bytes) // pad = 0x0 (4 bytes) // } // attrs: array[xfrma_policy] { // union xfrma_policy { // tmpl: nlattr_t[const[XFRMA_TMPL, int16], // array[xfrm_user_tmpl, 1:XFRM_MAX_DEPTH]] { // nla_len: offsetof = 0x44 (2 bytes) // nla_type: const = 0x5 (2 bytes) // payload: array[xfrm_user_tmpl] { // xfrm_user_tmpl { // id: xfrm_id { // daddr: union xfrm_address_t { // in: union ipv4_addr { // local: ipv4_addr_t[const[170, int8]] { // a0: const = 0xac (1 bytes) // a1: const = 0x14 (1 bytes) // a2: const = 0x14 (1 bytes) // a3: const = 0xaa (1 bytes) // } // } // } // spi: int32be = 0x0 (4 bytes) // proto: xfrm_proto = 0x3c (1 bytes) // pad = 0x0 (3 bytes) // } // family: xfrm_family = 0x0 (2 bytes) // pad = 0x0 (2 bytes) // saddr: union xfrm_address_t { // in: union ipv4_addr { // broadcast: const = 0xffffffff (4 bytes) // } // } // reqid: int32 = 0x0 (4 bytes) // mode: xfrm_mode = 0x0 (1 bytes) // share: xfrm_policy_shares = 0x3 (1 bytes) // optional: int8 = 0x0 (1 bytes) // pad = 0x0 (1 bytes) // aalgos: int32 = 0x0 (4 bytes) // ealgos: int32 = 0x0 (4 bytes) // calgos: int32 = 0x0 (4 bytes) // } // } // size: buffer: {} (length 0x0) // } // } // } // } // } // } // len: len = 0xfc (8 bytes) // } // } // vlen: const = 0x1 (8 bytes) // ctrl: const = 0x0 (8 bytes) // ctrllen: const = 0x0 (8 bytes) // f: send_flags = 0x0 (4 bytes) // pad = 0x0 (4 bytes) // } // } // f: send_flags = 0x0 (8 bytes) // ] *(uint64_t*)0x200000000480 = 0; *(uint32_t*)0x200000000488 = 0; *(uint64_t*)0x200000000490 = 0x200000001f40; *(uint64_t*)0x200000001f40 = 0x2000000004c0; *(uint32_t*)0x2000000004c0 = 0xfc; *(uint16_t*)0x2000000004c4 = 0x19; *(uint16_t*)0x2000000004c6 = 1; *(uint32_t*)0x2000000004c8 = 0; *(uint32_t*)0x2000000004cc = 0; memcpy((void*)0x2000000004d0, " \001\000\000\000\000\000\000\000\000\000\000\000\000\000\000", 16); *(uint8_t*)0x2000000004e0 = 0xac; *(uint8_t*)0x2000000004e1 = 0x14; *(uint8_t*)0x2000000004e2 = 0x14; *(uint8_t*)0x2000000004e3 = 0xaa; *(uint16_t*)0x2000000004f0 = htobe16(0); *(uint16_t*)0x2000000004f2 = htobe16(5); *(uint16_t*)0x2000000004f4 = htobe16(0); *(uint16_t*)0x2000000004f6 = htobe16(0); *(uint16_t*)0x2000000004f8 = 0xa; *(uint8_t*)0x2000000004fa = 0; *(uint8_t*)0x2000000004fb = 0; *(uint8_t*)0x2000000004fc = 0; *(uint32_t*)0x200000000500 = 0; *(uint32_t*)0x200000000504 = -1; *(uint64_t*)0x200000000508 = 0; *(uint64_t*)0x200000000510 = 0xa9; *(uint64_t*)0x200000000518 = 0; *(uint64_t*)0x200000000520 = 0; *(uint64_t*)0x200000000528 = 0; *(uint64_t*)0x200000000530 = -1; *(uint64_t*)0x200000000538 = 0; *(uint64_t*)0x200000000540 = 0; *(uint64_t*)0x200000000548 = 0; *(uint64_t*)0x200000000550 = 0xa00; *(uint64_t*)0x200000000558 = 0x40800000000000; *(uint64_t*)0x200000000560 = 0x800000000000000; *(uint32_t*)0x200000000568 = 0; *(uint32_t*)0x20000000056c = 0; *(uint8_t*)0x200000000570 = 0; *(uint8_t*)0x200000000571 = 0; *(uint8_t*)0x200000000572 = 0; *(uint8_t*)0x200000000573 = 0; *(uint16_t*)0x200000000578 = 0x44; *(uint16_t*)0x20000000057a = 5; *(uint8_t*)0x20000000057c = 0xac; *(uint8_t*)0x20000000057d = 0x14; *(uint8_t*)0x20000000057e = 0x14; *(uint8_t*)0x20000000057f = 0xaa; *(uint32_t*)0x20000000058c = htobe32(0); *(uint8_t*)0x200000000590 = 0x3c; *(uint16_t*)0x200000000594 = 0; *(uint32_t*)0x200000000598 = htobe32(-1); *(uint32_t*)0x2000000005a8 = 0; *(uint8_t*)0x2000000005ac = 0; *(uint8_t*)0x2000000005ad = 3; *(uint8_t*)0x2000000005ae = 0; *(uint32_t*)0x2000000005b0 = 0; *(uint32_t*)0x2000000005b4 = 0; *(uint32_t*)0x2000000005b8 = 0; *(uint64_t*)0x200000001f48 = 0xfc; *(uint64_t*)0x200000000498 = 1; *(uint64_t*)0x2000000004a0 = 0; *(uint64_t*)0x2000000004a8 = 0; *(uint32_t*)0x2000000004b0 = 0; syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x200000000480ul, /*f=*/0ul); // socket$nl_xfrm arguments: [ // domain: const = 0x10 (8 bytes) // type: const = 0x3 (8 bytes) // proto: const = 0x6 (4 bytes) // ] // returns sock_nl_xfrm res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/6); if (res != -1) r[1] = res; // sendmsg$nl_xfrm arguments: [ // fd: sock_nl_xfrm (resource) // msg: ptr[in, msghdr_netlink[netlink_msg_xfrm]] { // msghdr_netlink[netlink_msg_xfrm] { // addr: nil // addrlen: len = 0x0 (4 bytes) // pad = 0x0 (4 bytes) // vec: ptr[in, iovec[in, netlink_msg_xfrm]] { // iovec[in, netlink_msg_xfrm] { // addr: ptr[inout, array[ANYUNION]] { // array[ANYUNION] { // union ANYUNION { // ANYBLOB: buffer: {38 01 00 00 21 00 01 00 00 00 00 00 fe // ff ff ff fc 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 // fc 02 00 00 00 00 00 00 00 00 00 00 00 00 00 01 ff fc 00 // 00 00 00 00 00 0a 00 e0 80 00 00 00 00} (length 0x40) // } // union ANYUNION { // ANYRES32: ANYRES32 (resource) // } // union ANYUNION { // ANYRES32: ANYRES32 (resource) // } // union ANYUNION { // ANYBLOB: buffer: {02 00 00 00 00 00 00 00 e8 00 11 00 fe // 80 00 00 00 00 00 00 00 00 00 00 00 00 00 11 64 01 01 02 // 00 00 00 00 00 00 00 00 00 00 00 00 ac 14 14 aa 00 00 00 // 00 00 00 00 00 00 00 00 00 fe 80 00 00 00 00 00 00 00 00 // 00 00 00 00 00 bb 3c 00 00 00 00 00 00 00 0a 00 0a 00 fc // 02 00 00 00 00 00 00 00 00 00 00 00 00 00 01 e0 00 00 02 // 00 00 00 00 00 00 00 00 00 00 00 00 fe 88 00 00 00 f4 ff // ff ff ff ff ff ff 00 01 01 20 01 00 00 00 00 00 00 00 00 // 00 00 00 02 2b 03 00 00 04 35 00 00 0a 00 02 00 0a 01 01 // 02 00 00 00 00 00 00 00 00 00 00 00 00 fc 00 00 00 00 00 // 00 00 00 00 00 00 00 00 00 b7 63 f0 90 3a 30 df fe 1d 8d // 4e 00 fe 80 00 00 00 00 00 00 00 00 00 00 00 00 00 bb ff // ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 6c 00 00} // (length 0xf0) // } // } // } // len: len = 0x138 (8 bytes) // } // } // vlen: const = 0x1 (8 bytes) // ctrl: const = 0x0 (8 bytes) // ctrllen: const = 0x0 (8 bytes) // f: send_flags = 0x800 (4 bytes) // pad = 0x0 (4 bytes) // } // } // f: send_flags = 0x0 (8 bytes) // ] *(uint64_t*)0x200000000380 = 0; *(uint32_t*)0x200000000388 = 0; *(uint64_t*)0x200000000390 = 0x200000000340; *(uint64_t*)0x200000000340 = 0x2000000005c0; memcpy((void*)0x2000000005c0, "\x38\x01\x00\x00\x21\x00\x01\x00\x00\x00\x00\x00\xfe\xff\xff\xff\xfc" "\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfc\x02" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xfc\x00" "\x00\x00\x00\x00\x00\x0a\x00\xe0\x80\x00\x00\x00\x00", 64); *(uint32_t*)0x200000000600 = 0; *(uint32_t*)0x200000000604 = 0; memcpy( (void*)0x200000000608, "\x02\x00\x00\x00\x00\x00\x00\x00\xe8\x00\x11\x00\xfe\x80\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x11\x64\x01\x01\x02\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\xac\x14\x14\xaa\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\xbb\x3c\x00\x00\x00\x00\x00\x00\x00\x0a\x00\x0a\x00\xfc\x02" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xe0\x00\x00\x02" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfe\x88\x00\x00\x00\xf4" "\xff\xff\xff\xff\xff\xff\xff\x00\x01\x01\x20\x01\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\x00\x02\x2b\x03\x00\x00\x04\x35\x00\x00\x0a\x00\x02\x00" "\x0a\x01\x01\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfc\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xb7\x63\xf0\x90\x3a" "\x30\xdf\xfe\x1d\x8d\x4e\x00\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00\xbb\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x6c\x00\x00", 240); *(uint64_t*)0x200000000348 = 0x138; *(uint64_t*)0x200000000398 = 1; *(uint64_t*)0x2000000003a0 = 0; *(uint64_t*)0x2000000003a8 = 0; *(uint32_t*)0x2000000003b0 = 0x800; syscall(__NR_sendmsg, /*fd=*/r[1], /*msg=*/0x200000000380ul, /*f=*/0ul); return 0; }