| // WARNING in ebt_do_table |
| // https://syzkaller.appspot.com/bug?id=ae496c7eb605ca41cd6192cc678f08ad2020f1c3 |
| // status:fixed |
| // autogenerated by syzkaller (http://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| #include <arpa/inet.h> |
| #include <endian.h> |
| #include <errno.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <linux/if.h> |
| #include <linux/if_ether.h> |
| #include <linux/if_tun.h> |
| #include <linux/ip.h> |
| #include <linux/tcp.h> |
| #include <net/if_arp.h> |
| #include <sched.h> |
| #include <signal.h> |
| #include <stdarg.h> |
| #include <stdarg.h> |
| #include <stdbool.h> |
| #include <stdbool.h> |
| #include <stdio.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <sys/ioctl.h> |
| #include <sys/prctl.h> |
| #include <sys/resource.h> |
| #include <sys/stat.h> |
| #include <sys/syscall.h> |
| #include <sys/time.h> |
| #include <sys/uio.h> |
| #include <sys/wait.h> |
| #include <unistd.h> |
| |
| __attribute__((noreturn)) static void doexit(int status) |
| { |
| volatile unsigned i; |
| syscall(__NR_exit_group, status); |
| for (i = 0;; i++) { |
| } |
| } |
| #include <errno.h> |
| #include <stdarg.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <string.h> |
| |
| const int kFailStatus = 67; |
| const int kRetryStatus = 69; |
| |
| static void fail(const char* msg, ...) |
| { |
| int e = errno; |
| va_list args; |
| va_start(args, msg); |
| vfprintf(stderr, msg, args); |
| va_end(args); |
| fprintf(stderr, " (errno %d)\n", e); |
| doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus); |
| } |
| |
| #define BITMASK_LEN(type, bf_len) (type)((1ull << (bf_len)) - 1) |
| |
| #define BITMASK_LEN_OFF(type, bf_off, bf_len) \ |
| (type)(BITMASK_LEN(type, (bf_len)) << (bf_off)) |
| |
| #define STORE_BY_BITMASK(type, addr, val, bf_off, bf_len) \ |
| if ((bf_off) == 0 && (bf_len) == 0) { \ |
| *(type*)(addr) = (type)(val); \ |
| } else { \ |
| type new_val = *(type*)(addr); \ |
| new_val &= ~BITMASK_LEN_OFF(type, (bf_off), (bf_len)); \ |
| new_val |= ((type)(val)&BITMASK_LEN(type, (bf_len))) << (bf_off); \ |
| *(type*)(addr) = new_val; \ |
| } |
| |
| struct csum_inet { |
| uint32_t acc; |
| }; |
| |
| static void csum_inet_init(struct csum_inet* csum) |
| { |
| csum->acc = 0; |
| } |
| |
| static void csum_inet_update(struct csum_inet* csum, const uint8_t* data, |
| size_t length) |
| { |
| if (length == 0) |
| return; |
| |
| size_t i; |
| for (i = 0; i < length - 1; i += 2) |
| csum->acc += *(uint16_t*)&data[i]; |
| |
| if (length & 1) |
| csum->acc += (uint16_t)data[length - 1]; |
| |
| while (csum->acc > 0xffff) |
| csum->acc = (csum->acc & 0xffff) + (csum->acc >> 16); |
| } |
| |
| static uint16_t csum_inet_digest(struct csum_inet* csum) |
| { |
| return ~csum->acc; |
| } |
| |
| static void vsnprintf_check(char* str, size_t size, const char* format, |
| va_list args) |
| { |
| int rv; |
| |
| rv = vsnprintf(str, size, format, args); |
| if (rv < 0) |
| fail("tun: snprintf failed"); |
| if ((size_t)rv >= size) |
| fail("tun: string '%s...' doesn't fit into buffer", str); |
| } |
| |
| #define COMMAND_MAX_LEN 128 |
| #define PATH_PREFIX \ |
| "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin " |
| #define PATH_PREFIX_LEN (sizeof(PATH_PREFIX) - 1) |
| |
| static void execute_command(bool panic, const char* format, ...) |
| { |
| va_list args; |
| char command[PATH_PREFIX_LEN + COMMAND_MAX_LEN]; |
| int rv; |
| |
| va_start(args, format); |
| memcpy(command, PATH_PREFIX, PATH_PREFIX_LEN); |
| vsnprintf_check(command + PATH_PREFIX_LEN, COMMAND_MAX_LEN, format, args); |
| va_end(args); |
| rv = system(command); |
| if (rv) { |
| if (panic) |
| fail("command '%s' failed: %d", &command[0], rv); |
| } |
| } |
| |
| static int tunfd = -1; |
| static int tun_frags_enabled; |
| |
| #define SYZ_TUN_MAX_PACKET_SIZE 1000 |
| |
| #define TUN_IFACE "syz_tun" |
| |
| #define LOCAL_MAC "aa:aa:aa:aa:aa:aa" |
| #define REMOTE_MAC "aa:aa:aa:aa:aa:bb" |
| |
| #define LOCAL_IPV4 "172.20.20.170" |
| #define REMOTE_IPV4 "172.20.20.187" |
| |
| #define LOCAL_IPV6 "fe80::aa" |
| #define REMOTE_IPV6 "fe80::bb" |
| |
| #define IFF_NAPI 0x0010 |
| #define IFF_NAPI_FRAGS 0x0020 |
| |
| static void initialize_tun(void) |
| { |
| tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK); |
| if (tunfd == -1) { |
| printf("tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n"); |
| printf("otherwise fuzzing or reproducing might not work as intended\n"); |
| return; |
| } |
| const int kTunFd = 252; |
| if (dup2(tunfd, kTunFd) < 0) |
| fail("dup2(tunfd, kTunFd) failed"); |
| close(tunfd); |
| tunfd = kTunFd; |
| |
| struct ifreq ifr; |
| memset(&ifr, 0, sizeof(ifr)); |
| strncpy(ifr.ifr_name, TUN_IFACE, IFNAMSIZ); |
| ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_NAPI | IFF_NAPI_FRAGS; |
| if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) { |
| ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
| if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) |
| fail("tun: ioctl(TUNSETIFF) failed"); |
| } |
| if (ioctl(tunfd, TUNGETIFF, (void*)&ifr) < 0) |
| fail("tun: ioctl(TUNGETIFF) failed"); |
| tun_frags_enabled = (ifr.ifr_flags & IFF_NAPI_FRAGS) != 0; |
| |
| execute_command(1, "sysctl -w net.ipv6.conf.%s.accept_dad=0", TUN_IFACE); |
| |
| execute_command(1, "sysctl -w net.ipv6.conf.%s.router_solicitations=0", |
| TUN_IFACE); |
| |
| execute_command(1, "ip link set dev %s address %s", TUN_IFACE, LOCAL_MAC); |
| execute_command(1, "ip addr add %s/24 dev %s", LOCAL_IPV4, TUN_IFACE); |
| execute_command(1, "ip -6 addr add %s/120 dev %s", LOCAL_IPV6, TUN_IFACE); |
| execute_command(1, "ip neigh add %s lladdr %s dev %s nud permanent", |
| REMOTE_IPV4, REMOTE_MAC, TUN_IFACE); |
| execute_command(1, "ip -6 neigh add %s lladdr %s dev %s nud permanent", |
| REMOTE_IPV6, REMOTE_MAC, TUN_IFACE); |
| execute_command(1, "ip link set dev %s up", TUN_IFACE); |
| } |
| |
| #define DEV_IPV4 "172.20.20.%d" |
| #define DEV_IPV6 "fe80::%02hx" |
| #define DEV_MAC "aa:aa:aa:aa:aa:%02hx" |
| |
| static void snprintf_check(char* str, size_t size, const char* format, ...) |
| { |
| va_list args; |
| |
| va_start(args, format); |
| vsnprintf_check(str, size, format, args); |
| va_end(args); |
| } |
| |
| static void initialize_netdevices(void) |
| { |
| unsigned i; |
| const char* devtypes[] = {"ip6gretap", "bridge", "vcan", "bond", "team"}; |
| const char* devnames[] = {"lo", |
| "sit0", |
| "bridge0", |
| "vcan0", |
| "tunl0", |
| "gre0", |
| "gretap0", |
| "ip_vti0", |
| "ip6_vti0", |
| "ip6tnl0", |
| "ip6gre0", |
| "ip6gretap0", |
| "erspan0", |
| "bond0", |
| "veth0", |
| "veth1", |
| "team0", |
| "veth0_to_bridge", |
| "veth1_to_bridge", |
| "veth0_to_bond", |
| "veth1_to_bond", |
| "veth0_to_team", |
| "veth1_to_team"}; |
| const char* devmasters[] = {"bridge", "bond", "team"}; |
| |
| for (i = 0; i < sizeof(devtypes) / (sizeof(devtypes[0])); i++) |
| execute_command(0, "ip link add dev %s0 type %s", devtypes[i], devtypes[i]); |
| execute_command(0, "ip link add type veth"); |
| |
| for (i = 0; i < sizeof(devmasters) / (sizeof(devmasters[0])); i++) { |
| execute_command( |
| 0, "ip link add name %s_slave_0 type veth peer name veth0_to_%s", |
| devmasters[i], devmasters[i]); |
| execute_command( |
| 0, "ip link add name %s_slave_1 type veth peer name veth1_to_%s", |
| devmasters[i], devmasters[i]); |
| execute_command(0, "ip link set %s_slave_0 master %s0", devmasters[i], |
| devmasters[i]); |
| execute_command(0, "ip link set %s_slave_1 master %s0", devmasters[i], |
| devmasters[i]); |
| execute_command(0, "ip link set veth0_to_%s up", devmasters[i]); |
| execute_command(0, "ip link set veth1_to_%s up", devmasters[i]); |
| } |
| execute_command(0, "ip link set bridge_slave_0 up"); |
| execute_command(0, "ip link set bridge_slave_1 up"); |
| |
| for (i = 0; i < sizeof(devnames) / (sizeof(devnames[0])); i++) { |
| char addr[32]; |
| snprintf_check(addr, sizeof(addr), DEV_IPV4, i + 10); |
| execute_command(0, "ip -4 addr add %s/24 dev %s", addr, devnames[i]); |
| snprintf_check(addr, sizeof(addr), DEV_IPV6, i + 10); |
| execute_command(0, "ip -6 addr add %s/120 dev %s", addr, devnames[i]); |
| snprintf_check(addr, sizeof(addr), DEV_MAC, i + 10); |
| execute_command(0, "ip link set dev %s address %s", devnames[i], addr); |
| execute_command(0, "ip link set dev %s up", devnames[i]); |
| } |
| } |
| |
| #define MAX_FRAGS 4 |
| struct vnet_fragmentation { |
| uint32_t full; |
| uint32_t count; |
| uint32_t frags[MAX_FRAGS]; |
| }; |
| |
| static uintptr_t syz_emit_ethernet(uintptr_t a0, uintptr_t a1, uintptr_t a2) |
| { |
| if (tunfd < 0) |
| return (uintptr_t)-1; |
| |
| uint32_t length = a0; |
| char* data = (char*)a1; |
| |
| struct vnet_fragmentation* frags = (struct vnet_fragmentation*)a2; |
| struct iovec vecs[MAX_FRAGS + 1]; |
| uint32_t nfrags = 0; |
| if (!tun_frags_enabled || frags == NULL) { |
| vecs[nfrags].iov_base = data; |
| vecs[nfrags].iov_len = length; |
| nfrags++; |
| } else { |
| bool full = true; |
| uint32_t i, count = 0; |
| full = frags->full; |
| count = frags->count; |
| if (count > MAX_FRAGS) |
| count = MAX_FRAGS; |
| for (i = 0; i < count && length != 0; i++) { |
| uint32_t size = 0; |
| size = frags->frags[i]; |
| if (size > length) |
| size = length; |
| vecs[nfrags].iov_base = data; |
| vecs[nfrags].iov_len = size; |
| nfrags++; |
| data += size; |
| length -= size; |
| } |
| if (length != 0 && (full || nfrags == 0)) { |
| vecs[nfrags].iov_base = data; |
| vecs[nfrags].iov_len = length; |
| nfrags++; |
| } |
| } |
| return writev(tunfd, vecs, nfrags); |
| } |
| |
| static void loop(); |
| |
| static void sandbox_common() |
| { |
| prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); |
| setpgrp(); |
| setsid(); |
| |
| struct rlimit rlim; |
| rlim.rlim_cur = rlim.rlim_max = 160 << 20; |
| setrlimit(RLIMIT_AS, &rlim); |
| rlim.rlim_cur = rlim.rlim_max = 8 << 20; |
| setrlimit(RLIMIT_MEMLOCK, &rlim); |
| rlim.rlim_cur = rlim.rlim_max = 136 << 20; |
| setrlimit(RLIMIT_FSIZE, &rlim); |
| rlim.rlim_cur = rlim.rlim_max = 1 << 20; |
| setrlimit(RLIMIT_STACK, &rlim); |
| rlim.rlim_cur = rlim.rlim_max = 0; |
| setrlimit(RLIMIT_CORE, &rlim); |
| |
| if (unshare(CLONE_NEWNS)) { |
| } |
| if (unshare(CLONE_NEWIPC)) { |
| } |
| if (unshare(0x02000000)) { |
| } |
| if (unshare(CLONE_NEWUTS)) { |
| } |
| if (unshare(CLONE_SYSVSEM)) { |
| } |
| } |
| |
| static int do_sandbox_none(void) |
| { |
| if (unshare(CLONE_NEWPID)) { |
| } |
| int pid = fork(); |
| if (pid < 0) |
| fail("sandbox fork failed"); |
| if (pid) |
| return pid; |
| |
| sandbox_common(); |
| if (unshare(CLONE_NEWNET)) { |
| } |
| initialize_tun(); |
| initialize_netdevices(); |
| loop(); |
| doexit(1); |
| } |
| |
| uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; |
| void loop() |
| { |
| long res = 0; |
| memcpy((void*)0x20000000, "\x29\x53\xd0\x64\x2a\x3c", 6); |
| *(uint8_t*)0x20000006 = -1; |
| *(uint8_t*)0x20000007 = -1; |
| *(uint8_t*)0x20000008 = -1; |
| *(uint8_t*)0x20000009 = -1; |
| *(uint8_t*)0x2000000a = -1; |
| *(uint8_t*)0x2000000b = -1; |
| *(uint16_t*)0x2000000c = htobe16(0x800); |
| STORE_BY_BITMASK(uint8_t, 0x2000000e, 5, 0, 4); |
| STORE_BY_BITMASK(uint8_t, 0x2000000e, 4, 4, 4); |
| STORE_BY_BITMASK(uint8_t, 0x2000000f, 0, 0, 2); |
| STORE_BY_BITMASK(uint8_t, 0x2000000f, 0, 2, 6); |
| *(uint16_t*)0x20000010 = htobe16(0x30); |
| *(uint16_t*)0x20000012 = htobe16(0); |
| *(uint16_t*)0x20000014 = htobe16(0); |
| *(uint8_t*)0x20000016 = 0; |
| *(uint8_t*)0x20000017 = 0x6c; |
| *(uint16_t*)0x20000018 = 0; |
| *(uint8_t*)0x2000001a = 0xac; |
| *(uint8_t*)0x2000001b = 0x23; |
| *(uint8_t*)0x2000001c = 0x14; |
| *(uint8_t*)0x2000001d = 0xbb; |
| *(uint8_t*)0x2000001e = 0xac; |
| *(uint8_t*)0x2000001f = 0x14; |
| *(uint8_t*)0x20000020 = 0x14; |
| *(uint8_t*)0x20000021 = 0; |
| *(uint8_t*)0x20000022 = 3; |
| *(uint8_t*)0x20000023 = -1; |
| *(uint16_t*)0x20000024 = 0; |
| *(uint8_t*)0x20000026 = 0; |
| *(uint8_t*)0x20000027 = 0; |
| *(uint16_t*)0x20000028 = 0; |
| STORE_BY_BITMASK(uint8_t, 0x2000002a, 5, 0, 4); |
| STORE_BY_BITMASK(uint8_t, 0x2000002a, 4, 4, 4); |
| STORE_BY_BITMASK(uint8_t, 0x2000002b, 0, 0, 2); |
| STORE_BY_BITMASK(uint8_t, 0x2000002b, 0, 2, 6); |
| *(uint16_t*)0x2000002c = htobe16(0); |
| *(uint16_t*)0x2000002e = htobe16(0); |
| *(uint16_t*)0x20000030 = htobe16(0); |
| *(uint8_t*)0x20000032 = 0; |
| *(uint8_t*)0x20000033 = 0; |
| *(uint16_t*)0x20000034 = htobe16(0); |
| *(uint8_t*)0x20000036 = 0xac; |
| *(uint8_t*)0x20000037 = 0x14; |
| *(uint8_t*)0x20000038 = 0x14; |
| *(uint8_t*)0x20000039 = 0xaa; |
| *(uint8_t*)0x2000003a = 0xac; |
| *(uint8_t*)0x2000003b = 0x14; |
| *(uint8_t*)0x2000003c = 0x14; |
| *(uint8_t*)0x2000003d = 0; |
| *(uint32_t*)0x20000080 = 0; |
| *(uint32_t*)0x20000084 = 0; |
| *(uint32_t*)0x20000088 = 0; |
| *(uint32_t*)0x2000008c = 0; |
| *(uint32_t*)0x20000090 = 0; |
| *(uint32_t*)0x20000094 = 0; |
| struct csum_inet csum_1; |
| csum_inet_init(&csum_1); |
| csum_inet_update(&csum_1, (const uint8_t*)0x20000022, 28); |
| *(uint16_t*)0x20000024 = csum_inet_digest(&csum_1); |
| struct csum_inet csum_2; |
| csum_inet_init(&csum_2); |
| csum_inet_update(&csum_2, (const uint8_t*)0x2000000e, 20); |
| *(uint16_t*)0x20000018 = csum_inet_digest(&csum_2); |
| syz_emit_ethernet(0x3e, 0x20000000, 0x20000080); |
| res = syscall(__NR_socket, 0xa, 1, 0); |
| if (res != -1) |
| r[0] = res; |
| memcpy((void*)0x20000280, "\x66\x69\x6c\x74\x65\x72\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00", |
| 32); |
| *(uint32_t*)0x200002a0 = 0xe; |
| *(uint32_t*)0x200002a4 = 1; |
| *(uint32_t*)0x200002a8 = 0x160; |
| *(uint64_t*)0x200002b0 = 0; |
| *(uint64_t*)0x200002b8 = 0x20000340; |
| *(uint64_t*)0x200002c0 = 0x20000370; |
| *(uint64_t*)0x200002c8 = 0x200003a0; |
| *(uint64_t*)0x200002d0 = 0; |
| *(uint64_t*)0x200002d8 = 0; |
| *(uint32_t*)0x200002e0 = 0; |
| *(uint64_t*)0x200002e8 = 0x20000000; |
| *(uint64_t*)0x200002f0 = 0x20000340; |
| memcpy((void*)0x20000340, |
| "\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\xed\xff\xff\xff\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xc8\xde\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\xfe\xff\xff\xff\x01\x00\x00\x00\x19\x00\x00\x00\x02\x00\x00\x00\x08" |
| "\x00\x62\x72\x59\x64\x67\x65\x30\x00\x00\x00\x00\x00\x00\x00\x00\x1c" |
| "\xff\x66\x62\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xd3\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\x7f\x00\x00\x00" |
| "\x00\x00\x00\x6e\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x80\xc2" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xaa\xaa\xaa\xaa\xbb\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x70\x00\x00\x00\x70\x00\x00\x00\xa0\x00\x00" |
| "\x00\x4e\x46\x51\x55\x45\x55\x45\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\xf7\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" |
| "\x01\x00\x00\x00\xfe\xff\xff\xff\x00\x00\x00\x00", |
| 352); |
| syscall(__NR_setsockopt, r[0], 0, 0x80, 0x20000280, 0x1d8); |
| res = syscall(__NR_socket, 0xa, 0x100000002, 0); |
| if (res != -1) |
| r[1] = res; |
| *(uint16_t*)0x20000080 = 0xa; |
| *(uint16_t*)0x20000082 = htobe16(0); |
| *(uint32_t*)0x20000084 = 0; |
| *(uint8_t*)0x20000088 = -1; |
| *(uint8_t*)0x20000089 = 1; |
| *(uint8_t*)0x2000008a = 0; |
| *(uint8_t*)0x2000008b = 0; |
| *(uint8_t*)0x2000008c = 0; |
| *(uint8_t*)0x2000008d = 0; |
| *(uint8_t*)0x2000008e = 0; |
| *(uint8_t*)0x2000008f = 0; |
| *(uint8_t*)0x20000090 = 0; |
| *(uint8_t*)0x20000091 = 0; |
| *(uint8_t*)0x20000092 = 0; |
| *(uint8_t*)0x20000093 = 0; |
| *(uint8_t*)0x20000094 = 0; |
| *(uint8_t*)0x20000095 = 0; |
| *(uint8_t*)0x20000096 = 0; |
| *(uint8_t*)0x20000097 = 1; |
| *(uint32_t*)0x20000098 = 0xd; |
| syscall(__NR_connect, r[1], 0x20000080, 0x1c); |
| *(uint16_t*)0x200000c0 = 0xa; |
| *(uint16_t*)0x200000c2 = htobe16(0x4e23); |
| *(uint32_t*)0x200000c4 = 0; |
| *(uint8_t*)0x200000c8 = 0; |
| *(uint8_t*)0x200000c9 = 0; |
| *(uint8_t*)0x200000ca = 0; |
| *(uint8_t*)0x200000cb = 0; |
| *(uint8_t*)0x200000cc = 0; |
| *(uint8_t*)0x200000cd = 0; |
| *(uint8_t*)0x200000ce = 0; |
| *(uint8_t*)0x200000cf = 0; |
| *(uint8_t*)0x200000d0 = 0; |
| *(uint8_t*)0x200000d1 = 0; |
| *(uint8_t*)0x200000d2 = -1; |
| *(uint8_t*)0x200000d3 = -1; |
| *(uint32_t*)0x200000d4 = htobe32(0xe0000002); |
| *(uint32_t*)0x200000d8 = 0; |
| syscall(__NR_sendto, r[1], 0x20000300, 0xfd90, 0x400806e, 0x200000c0, 0x1c); |
| *(uint16_t*)0x20000180 = 0xa; |
| *(uint16_t*)0x20000182 = htobe16(0); |
| *(uint32_t*)0x20000184 = 0; |
| *(uint64_t*)0x20000188 = htobe64(0); |
| *(uint64_t*)0x20000190 = htobe64(1); |
| *(uint32_t*)0x20000198 = 0; |
| syscall(__NR_sendto, r[1], 0x20000140, 0, 0, 0x20000180, 0x1c); |
| } |
| |
| int main() |
| { |
| syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); |
| int pid = do_sandbox_none(); |
| int status = 0; |
| while (waitpid(pid, &status, __WALL) != pid) { |
| } |
| return 0; |
| } |