// autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include uint64_t r[11] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0x0}; 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$unix arguments: [ // domain: const = 0x1 (8 bytes) // type: unix_socket_type = 0x1 (8 bytes) // proto: const = 0x0 (4 bytes) // ] // returns sock_unix res = syscall(__NR_socket, /*domain=*/1ul, /*type=SOCK_STREAM*/ 1ul, /*proto=*/0); if (res != -1) r[0] = res; // openat$tun arguments: [ // fd: const = 0xffffffffffffff9c (8 bytes) // file: ptr[in, buffer] { // buffer: {2f 64 65 76 2f 6e 65 74 2f 74 75 6e 00} (length 0xd) // } // flags: open_flags = 0x0 (4 bytes) // mode: const = 0x0 (2 bytes) // ] // returns fd_tun memcpy((void*)0x200000000240, "/dev/net/tun\000", 13); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000240ul, /*flags=*/0, /*mode=*/0); if (res != -1) r[1] = res; // ioctl$TUNSETIFF arguments: [ // fd: fd_tun (resource) // cmd: const = 0x400454ca (4 bytes) // arg: ptr[in, ifreq_dev_t[devnames, flags[tun_setiff_flags, int16]]] { // ifreq_dev_t[devnames, flags[tun_setiff_flags, int16]] { // ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00} // (length 0x10) elem: tun_setiff_flags = 0x7101 (2 bytes) pad = 0x0 // (22 bytes) // } // } // ] memcpy((void*)0x200000000040, "syzkaller0\000\000\000\000\000\000", 16); *(uint16_t*)0x200000000050 = 0x7101; syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x400454ca, /*arg=*/0x200000000040ul); // socket arguments: [ // domain: socket_domain = 0x400000000010 (8 bytes) // type: socket_type = 0x3 (8 bytes) // proto: int32 = 0x0 (4 bytes) // ] // returns sock res = syscall(__NR_socket, /*domain=AF_NETLINK|0x400000000000*/ 0x400000000010ul, /*type=SOCK_RAW*/ 3ul, /*proto=*/0); if (res != -1) r[2] = res; // socket$unix arguments: [ // domain: const = 0x1 (8 bytes) // type: unix_socket_type = 0x1 (8 bytes) // proto: const = 0x0 (4 bytes) // ] // returns sock_unix res = syscall(__NR_socket, /*domain=*/1ul, /*type=SOCK_STREAM*/ 1ul, /*proto=*/0); if (res != -1) r[3] = res; // ioctl$sock_SIOCGIFINDEX arguments: [ // fd: sock (resource) // cmd: const = 0x8933 (4 bytes) // arg: ptr[out, ifreq_dev_t[devnames, ifindex]] { // ifreq_dev_t[devnames, ifindex] { // ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00} // (length 0x10) elem: ifindex (resource) pad = 0x0 (20 bytes) // } // } // ] memcpy((void*)0x200000000100, "syzkaller0\000\000\000\000\000\000", 16); res = syscall(__NR_ioctl, /*fd=*/r[3], /*cmd=*/0x8933, /*arg=*/0x200000000100ul); if (res != -1) r[4] = *(uint32_t*)0x200000000110; // sendmsg$nl_route_sched arguments: [ // fd: sock_nl_route (resource) // msg: ptr[in, msghdr_netlink[netlink_msg_route_sched]] { // msghdr_netlink[netlink_msg_route_sched] { // addr: nil // addrlen: len = 0x0 (4 bytes) // pad = 0x0 (4 bytes) // vec: ptr[in, iovec[in, netlink_msg_route_sched]] { // iovec[in, netlink_msg_route_sched] { // addr: ptr[in, netlink_msg_route_sched] { // union netlink_msg_route_sched { // newqdisc: netlink_msg_t[const[RTM_NEWQDISC, int16], // tcmsg[AF_UNSPEC], rtm_tca_policy] { // len: len = 0x38 (4 bytes) // type: const = 0x24 (2 bytes) // flags: netlink_msg_flags = 0x4ee4e6a52ff56541 (2 bytes) // seq: int32 = 0x70bd2a (4 bytes) // pid: int32 = 0xffffffff (4 bytes) // payload: tcmsg[AF_UNSPEC] { // family: const = 0x0 (1 bytes) // tcm__pad1: const = 0x0 (1 bytes) // tcm__pad2: const = 0x0 (2 bytes) // ifindex: ifindex (resource) // tcm_handle: tcm_handle { // minor: tcm_handle_offsets = 0x0 (2 bytes) // major: tcm_handle_offsets = 0xfff1 (2 bytes) // } // tcm_parent: tcm_handle { // minor: tcm_handle_offsets = 0xffff (2 bytes) // major: tcm_handle_offsets = 0xffff (2 bytes) // } // tcm_info: tcm_handle { // minor: tcm_handle_offsets = 0x0 (2 bytes) // major: tcm_handle_offsets = 0x2 (2 bytes) // } // } // attrs: array[rtm_tca_policy] { // union rtm_tca_policy { // qdisc_kind_options: union qdisc_kind_options { // q_multiq: tca_kind_options_t["multiq", // tc_multiq_qopt] { // TCA_KIND: nlattr_t[const[TCA_KIND, int16], // string["multiq"]] { // nla_len: offsetof = 0xb (2 bytes) // nla_type: const = 0x1 (2 bytes) // payload: buffer: {6d 75 6c 74 69 71 00} (length // 0x7) size: buffer: {} (length 0x0) pad = 0x0 (1 // bytes) // } // TCA_OPTIONS: nlattr_t[const[TCA_OPTIONS, int16], // tc_multiq_qopt] { // nla_len: offsetof = 0x8 (2 bytes) // nla_type: const = 0x2 (2 bytes) // payload: tc_multiq_qopt { // bands: int16 = 0x0 (2 bytes) // max_bands: int16 = 0x3 (2 bytes) // } // size: buffer: {} (length 0x0) // } // } // } // } // } // } // } // } // len: len = 0x38 (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*)0x200000000bc0 = 0; *(uint32_t*)0x200000000bc8 = 0; *(uint64_t*)0x200000000bd0 = 0x200000000080; *(uint64_t*)0x200000000080 = 0x2000000005c0; *(uint32_t*)0x2000000005c0 = 0x38; *(uint16_t*)0x2000000005c4 = 0x24; *(uint16_t*)0x2000000005c6 = 0x6541; *(uint32_t*)0x2000000005c8 = 0x70bd2a; *(uint32_t*)0x2000000005cc = -1; *(uint8_t*)0x2000000005d0 = 0; *(uint8_t*)0x2000000005d1 = 0; *(uint16_t*)0x2000000005d2 = 0; *(uint32_t*)0x2000000005d4 = r[4]; *(uint16_t*)0x2000000005d8 = 0; *(uint16_t*)0x2000000005da = 0xfff1; *(uint16_t*)0x2000000005dc = -1; *(uint16_t*)0x2000000005de = -1; *(uint16_t*)0x2000000005e0 = 0; *(uint16_t*)0x2000000005e2 = 2; *(uint16_t*)0x2000000005e4 = 0xb; *(uint16_t*)0x2000000005e6 = 1; memcpy((void*)0x2000000005e8, "multiq\000", 7); *(uint16_t*)0x2000000005f0 = 8; *(uint16_t*)0x2000000005f2 = 2; *(uint16_t*)0x2000000005f4 = 0; *(uint16_t*)0x2000000005f6 = 3; *(uint64_t*)0x200000000088 = 0x38; *(uint64_t*)0x200000000bd8 = 1; *(uint64_t*)0x200000000be0 = 0; *(uint64_t*)0x200000000be8 = 0; *(uint32_t*)0x200000000bf0 = 0; syscall(__NR_sendmsg, /*fd=*/r[2], /*msg=*/0x200000000bc0ul, /*f=*/0ul); // socket$kcm arguments: [ // domain: const = 0x11 (8 bytes) // type: kcm_socket_type = 0x3 (8 bytes) // proto: const = 0x0 (4 bytes) // ] // returns sock_kcm res = syscall(__NR_socket, /*domain=*/0x11ul, /*type=SOCK_DGRAM|0x1*/ 3ul, /*proto=*/0); if (res != -1) r[5] = res; // socket arguments: [ // domain: socket_domain = 0x400000000010 (8 bytes) // type: socket_type = 0x3 (8 bytes) // proto: int32 = 0x0 (4 bytes) // ] // returns sock res = syscall(__NR_socket, /*domain=AF_NETLINK|0x400000000000*/ 0x400000000010ul, /*type=SOCK_RAW*/ 3ul, /*proto=*/0); if (res != -1) r[6] = res; // socket$unix arguments: [ // domain: const = 0x1 (8 bytes) // type: unix_socket_type = 0x5 (8 bytes) // proto: const = 0x0 (4 bytes) // ] // returns sock_unix res = syscall(__NR_socket, /*domain=*/1ul, /*type=SOCK_SEQPACKET*/ 5ul, /*proto=*/0); if (res != -1) r[7] = res; // ioctl$sock_SIOCGIFINDEX arguments: [ // fd: sock (resource) // cmd: const = 0x8933 (4 bytes) // arg: ptr[out, ifreq_dev_t[devnames, ifindex]] { // ifreq_dev_t[devnames, ifindex] { // ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00} // (length 0x10) elem: ifindex (resource) pad = 0x0 (20 bytes) // } // } // ] memcpy((void*)0x200000000100, "syzkaller0\000\000\000\000\000\000", 16); res = syscall(__NR_ioctl, /*fd=*/r[7], /*cmd=*/0x8933, /*arg=*/0x200000000100ul); if (res != -1) r[8] = *(uint32_t*)0x200000000110; // sendmsg$nl_route_sched arguments: [ // fd: sock_nl_route (resource) // msg: ptr[in, msghdr_netlink[netlink_msg_route_sched]] { // msghdr_netlink[netlink_msg_route_sched] { // addr: nil // addrlen: len = 0x0 (4 bytes) // pad = 0x0 (4 bytes) // vec: ptr[in, iovec[in, netlink_msg_route_sched]] { // iovec[in, netlink_msg_route_sched] { // addr: ptr[in, netlink_msg_route_sched] { // union netlink_msg_route_sched { // newtfilter: netlink_msg_t[const[RTM_NEWTFILTER, int16], // tcmsg[AF_UNSPEC], filter_policy] { // len: len = 0x4c (4 bytes) // type: const = 0x2c (2 bytes) // flags: netlink_msg_flags = 0xd3f (2 bytes) // seq: int32 = 0x70bd24 (4 bytes) // pid: int32 = 0x25dfdbfc (4 bytes) // payload: tcmsg[AF_UNSPEC] { // family: const = 0x0 (1 bytes) // tcm__pad1: const = 0x0 (1 bytes) // tcm__pad2: const = 0x0 (2 bytes) // ifindex: ifindex (resource) // tcm_handle: tcm_handle { // minor: tcm_handle_offsets = 0xfff3 (2 bytes) // major: tcm_handle_offsets = 0xffe0 (2 bytes) // } // tcm_parent: tcm_handle { // minor: tcm_handle_offsets = 0x0 (2 bytes) // major: tcm_handle_offsets = 0x0 (2 bytes) // } // tcm_info: tcm_handle { // minor: tcm_handle_offsets = 0x7 (2 bytes) // major: tcm_handle_offsets = 0x2 (2 bytes) // } // } // attrs: array[filter_policy] { // union filter_policy { // filter_kind_options: union filter_kind_options { // f_bpf: tca_kind_options_t["bpf", array[bpf_policy]] // { // TCA_KIND: nlattr_t[const[TCA_KIND, int16], // string["bpf"]] { // nla_len: offsetof = 0x8 (2 bytes) // nla_type: const = 0x1 (2 bytes) // payload: buffer: {62 70 66 00} (length 0x4) // size: buffer: {} (length 0x0) // } // TCA_OPTIONS: nlattr_t[const[TCA_OPTIONS, int16], // array[bpf_policy]] { // nla_len: offsetof = 0x20 (2 bytes) // nla_type: const = 0x2 (2 bytes) // payload: array[bpf_policy] { // union bpf_policy { // TCA_BPF_OPS: bpf_policy$ops { // TCA_BPF_OPS_LEN: // nlattr_t[const[TCA_BPF_OPS_LEN, int16], // len[bpf_policy$ops:TCA_BPF_OPS:payload, // int16]] { // nla_len: offsetof = 0x6 (2 bytes) // nla_type: const = 0x4 (2 bytes) // payload: len = 0x1 (2 bytes) // size: buffer: {} (length 0x0) // pad = 0x0 (2 bytes) // } // TCA_BPF_OPS: nlattr_t[const[TCA_BPF_OPS, // int16], array[sock_filter]] { // nla_len: offsetof = 0xc (2 bytes) // nla_type: const = 0x5 (2 bytes) // payload: array[sock_filter] { // sock_filter { // code: int16 = 0x6 (2 bytes) // jt: int8 = 0xd (1 bytes) // jf: int8 = 0x5 (1 bytes) // k: int32 = 0x4 (4 bytes) // } // } // size: buffer: {} (length 0x0) // } // } // } // union bpf_policy { // TCA_BPF_FLAGS: nlattr_t[const[TCA_BPF_FLAGS, // int16], int32[0:1]] { // nla_len: offsetof = 0x8 (2 bytes) // nla_type: const = 0x8 (2 bytes) // payload: int32 = 0x1 (4 bytes) // size: buffer: {} (length 0x0) // } // } // } // size: buffer: {} (length 0x0) // } // } // } // } // } // } // } // } // len: len = 0x4c (8 bytes) // } // } // vlen: const = 0x1 (8 bytes) // ctrl: const = 0x0 (8 bytes) // ctrllen: const = 0x0 (8 bytes) // f: send_flags = 0x8848 (4 bytes) // pad = 0x0 (4 bytes) // } // } // f: send_flags = 0x20004804 (8 bytes) // ] *(uint64_t*)0x200000000000 = 0; *(uint32_t*)0x200000000008 = 0; *(uint64_t*)0x200000000010 = 0x200000000380; *(uint64_t*)0x200000000380 = 0x200000000140; *(uint32_t*)0x200000000140 = 0x4c; *(uint16_t*)0x200000000144 = 0x2c; *(uint16_t*)0x200000000146 = 0xd3f; *(uint32_t*)0x200000000148 = 0x70bd24; *(uint32_t*)0x20000000014c = 0x25dfdbfc; *(uint8_t*)0x200000000150 = 0; *(uint8_t*)0x200000000151 = 0; *(uint16_t*)0x200000000152 = 0; *(uint32_t*)0x200000000154 = r[8]; *(uint16_t*)0x200000000158 = 0xfff3; *(uint16_t*)0x20000000015a = 0xffe0; *(uint16_t*)0x20000000015c = 0; *(uint16_t*)0x20000000015e = 0; *(uint16_t*)0x200000000160 = 7; *(uint16_t*)0x200000000162 = 2; *(uint16_t*)0x200000000164 = 8; *(uint16_t*)0x200000000166 = 1; memcpy((void*)0x200000000168, "bpf\000", 4); *(uint16_t*)0x20000000016c = 0x20; *(uint16_t*)0x20000000016e = 2; *(uint16_t*)0x200000000170 = 6; *(uint16_t*)0x200000000172 = 4; *(uint16_t*)0x200000000174 = 1; *(uint16_t*)0x200000000178 = 0xc; *(uint16_t*)0x20000000017a = 5; *(uint16_t*)0x20000000017c = 6; *(uint8_t*)0x20000000017e = 0xd; *(uint8_t*)0x20000000017f = 5; *(uint32_t*)0x200000000180 = 4; *(uint16_t*)0x200000000184 = 8; *(uint16_t*)0x200000000186 = 8; *(uint32_t*)0x200000000188 = 1; *(uint64_t*)0x200000000388 = 0x4c; *(uint64_t*)0x200000000018 = 1; *(uint64_t*)0x200000000020 = 0; *(uint64_t*)0x200000000028 = 0; *(uint32_t*)0x200000000030 = 0x8848; syscall( __NR_sendmsg, /*fd=*/r[6], /*msg=*/0x200000000000ul, /*f=MSG_FASTOPEN|MSG_NOSIGNAL|MSG_DONTROUTE|MSG_CONFIRM*/ 0x20004804ul); // openat$tun arguments: [ // fd: const = 0xffffffffffffff9c (8 bytes) // file: ptr[in, buffer] { // buffer: {2f 64 65 76 2f 6e 65 74 2f 74 75 6e 00} (length 0xd) // } // flags: open_flags = 0x0 (4 bytes) // mode: const = 0x0 (2 bytes) // ] // returns fd_tun memcpy((void*)0x200000000400, "/dev/net/tun\000", 13); res = syscall(__NR_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x200000000400ul, /*flags=*/0, /*mode=*/0); if (res != -1) r[9] = res; // close arguments: [ // fd: fd (resource) // ] syscall(__NR_close, /*fd=*/r[9]); // socket$nl_generic arguments: [ // domain: const = 0x10 (8 bytes) // type: const = 0x3 (8 bytes) // proto: const = 0x10 (4 bytes) // ] // returns sock_nl_generic syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0x10); // ioctl$SIOCSIFHWADDR arguments: [ // fd: fd_tun (resource) // cmd: const = 0x8914 (4 bytes) // arg: ptr[in, ifreq_dev_t[devnames, mac_addr]] { // ifreq_dev_t[devnames, mac_addr] { // ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00} // (length 0x10) elem: union mac_addr { // multicast: buffer: {bb bb bb bb bb bb} (length 0x6) // } // pad = 0x0 (18 bytes) // } // } // ] memcpy((void*)0x200000002280, "syzkaller0\000\000\000\000\000\000", 16); memset((void*)0x200000002290, 187, 6); syscall(__NR_ioctl, /*fd=*/r[9], /*cmd=*/0x8914, /*arg=*/0x200000002280ul); // ioctl$sock_SIOCGIFINDEX arguments: [ // fd: sock (resource) // cmd: const = 0x8933 (4 bytes) // arg: ptr[out, ifreq_dev_t[devnames, ifindex]] { // ifreq_dev_t[devnames, ifindex] { // ifr_ifrn: buffer: {73 79 7a 6b 61 6c 6c 65 72 30 00 00 00 00 00 00} // (length 0x10) elem: ifindex (resource) pad = 0x0 (20 bytes) // } // } // ] memcpy((void*)0x200000000100, "syzkaller0\000\000\000\000\000\000", 16); res = syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x8933, /*arg=*/0x200000000100ul); if (res != -1) r[10] = *(uint32_t*)0x200000000110; // sendmsg$kcm arguments: [ // fd: sock_kcm (resource) // msg: ptr[in, send_msghdr] { // send_msghdr { // msg_name: ptr[in, sockaddr_storage] { // union sockaddr_storage { // xdp: sockaddr_xdp { // sxdp_family: const = 0x2c (2 bytes) // sxdp_flags: sxdp_flags = 0x7 (2 bytes) // sxdp_ifindex: ifindex (resource) // sxdp_queue_id: int32 = 0x3e (4 bytes) // sxdp_shared_umem_fd: const = 0x0 (4 bytes) // } // } // } // msg_namelen: len = 0x80 (4 bytes) // pad = 0x0 (4 bytes) // msg_iov: ptr[in, array[iovec[in, array[int8]]]] { // array[iovec[in, array[int8]]] { // iovec[in, array[int8]] { // addr: ptr[in, buffer] { // buffer: {27 03} (length 0x2) // } // len: len = 0x2 (8 bytes) // } // } // } // msg_iovlen: len = 0x1 (8 bytes) // msg_control: nil // msg_controllen: bytesize = 0x0 (8 bytes) // msg_flags: const = 0x0 (4 bytes) // pad = 0x0 (4 bytes) // } // } // f: send_flags = 0x4 (8 bytes) // ] *(uint64_t*)0x2000000000c0 = 0x200000000380; *(uint16_t*)0x200000000380 = 0x2c; *(uint16_t*)0x200000000382 = 7; *(uint32_t*)0x200000000384 = r[10]; *(uint32_t*)0x200000000388 = 0x3e; *(uint32_t*)0x20000000038c = 0; *(uint32_t*)0x2000000000c8 = 0x80; *(uint64_t*)0x2000000000d0 = 0x200000000080; *(uint64_t*)0x200000000080 = 0x200000000180; memcpy((void*)0x200000000180, "\x27\x03", 2); *(uint64_t*)0x200000000088 = 2; *(uint64_t*)0x2000000000d8 = 1; *(uint64_t*)0x2000000000e0 = 0; *(uint64_t*)0x2000000000e8 = 0; *(uint32_t*)0x2000000000f0 = 0; syscall(__NR_sendmsg, /*fd=*/r[5], /*msg=*/0x2000000000c0ul, /*f=MSG_DONTROUTE*/ 4ul); return 0; }