| // kernel BUG at net/key/af_key.c:LINE! |
| // https://syzkaller.appspot.com/bug?id=dc27604a888bd71bab2691b1b9867e84834d3049 |
| // status:fixed |
| // autogenerated by syzkaller (http://github.com/google/syzkaller) |
| |
| #define _GNU_SOURCE |
| |
| #include <arpa/inet.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 <pthread.h> |
| #include <stdarg.h> |
| #include <stdbool.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/ioctl.h> |
| #include <sys/stat.h> |
| #include <sys/syscall.h> |
| #include <unistd.h> |
| |
| const int kFailStatus = 67; |
| const int kRetryStatus = 69; |
| |
| __attribute__((noreturn)) static void doexit(int status) |
| { |
| volatile unsigned i; |
| syscall(__NR_exit_group, status); |
| for (i = 0;; i++) { |
| } |
| } |
| |
| __attribute__((noreturn)) static void fail(const char* msg, ...) |
| { |
| int e = errno; |
| fflush(stdout); |
| 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; \ |
| } |
| |
| 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); |
| } |
| |
| 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); |
| } |
| |
| #define COMMAND_MAX_LEN 128 |
| |
| static void execute_command(const char* format, ...) |
| { |
| va_list args; |
| char command[COMMAND_MAX_LEN]; |
| int rv; |
| |
| va_start(args, format); |
| |
| vsnprintf_check(command, sizeof(command), format, args); |
| rv = system(command); |
| if (rv != 0) |
| fail("tun: command \"%s\" failed with code %d", &command[0], rv); |
| |
| va_end(args); |
| } |
| |
| static int tunfd = -1; |
| |
| #define SYZ_TUN_MAX_PACKET_SIZE 1000 |
| |
| #define MAX_PIDS 32 |
| #define ADDR_MAX_LEN 32 |
| |
| #define LOCAL_MAC "aa:aa:aa:aa:aa:%02hx" |
| #define REMOTE_MAC "bb:bb:bb:bb:bb:%02hx" |
| |
| #define LOCAL_IPV4 "172.20.%d.170" |
| #define REMOTE_IPV4 "172.20.%d.187" |
| |
| #define LOCAL_IPV6 "fe80::%02hxaa" |
| #define REMOTE_IPV6 "fe80::%02hxbb" |
| |
| static void initialize_tun(uint64_t pid) |
| { |
| if (pid >= MAX_PIDS) |
| fail("tun: no more than %d executors", MAX_PIDS); |
| int id = pid; |
| |
| tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK); |
| if (tunfd == -1) |
| fail("tun: can't open /dev/net/tun"); |
| |
| char iface[IFNAMSIZ]; |
| snprintf_check(iface, sizeof(iface), "syz%d", id); |
| |
| struct ifreq ifr; |
| memset(&ifr, 0, sizeof(ifr)); |
| strncpy(ifr.ifr_name, iface, IFNAMSIZ); |
| ifr.ifr_flags = IFF_TAP | IFF_NO_PI; |
| if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) |
| fail("tun: ioctl(TUNSETIFF) failed"); |
| |
| char local_mac[ADDR_MAX_LEN]; |
| snprintf_check(local_mac, sizeof(local_mac), LOCAL_MAC, id); |
| char remote_mac[ADDR_MAX_LEN]; |
| snprintf_check(remote_mac, sizeof(remote_mac), REMOTE_MAC, id); |
| |
| char local_ipv4[ADDR_MAX_LEN]; |
| snprintf_check(local_ipv4, sizeof(local_ipv4), LOCAL_IPV4, id); |
| char remote_ipv4[ADDR_MAX_LEN]; |
| snprintf_check(remote_ipv4, sizeof(remote_ipv4), REMOTE_IPV4, id); |
| |
| char local_ipv6[ADDR_MAX_LEN]; |
| snprintf_check(local_ipv6, sizeof(local_ipv6), LOCAL_IPV6, id); |
| char remote_ipv6[ADDR_MAX_LEN]; |
| snprintf_check(remote_ipv6, sizeof(remote_ipv6), REMOTE_IPV6, id); |
| |
| execute_command("sysctl -w net.ipv6.conf.%s.accept_dad=0", iface); |
| |
| execute_command("sysctl -w net.ipv6.conf.%s.router_solicitations=0", |
| iface); |
| |
| execute_command("ip link set dev %s address %s", iface, local_mac); |
| execute_command("ip addr add %s/24 dev %s", local_ipv4, iface); |
| execute_command("ip -6 addr add %s/120 dev %s", local_ipv6, iface); |
| execute_command("ip neigh add %s lladdr %s dev %s nud permanent", |
| remote_ipv4, remote_mac, iface); |
| execute_command("ip -6 neigh add %s lladdr %s dev %s nud permanent", |
| remote_ipv6, remote_mac, iface); |
| execute_command("ip link set dev %s up", iface); |
| } |
| |
| static void setup_tun(uint64_t pid, bool enable_tun) |
| { |
| if (enable_tun) |
| initialize_tun(pid); |
| } |
| |
| static int read_tun(char* data, int size) |
| { |
| int rv = read(tunfd, data, size); |
| if (rv < 0) { |
| if (errno == EAGAIN) |
| return -1; |
| fail("tun: read failed with %d, errno: %d", rv, errno); |
| } |
| return rv; |
| } |
| |
| 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 uintptr_t syz_emit_ethernet(uintptr_t a0, uintptr_t a1) |
| { |
| |
| if (tunfd < 0) |
| return (uintptr_t)-1; |
| |
| int64_t length = a0; |
| char* data = (char*)a1; |
| return write(tunfd, data, length); |
| } |
| |
| struct ipv6hdr { |
| __u8 priority : 4, version : 4; |
| __u8 flow_lbl[3]; |
| |
| __be16 payload_len; |
| __u8 nexthdr; |
| __u8 hop_limit; |
| |
| struct in6_addr saddr; |
| struct in6_addr daddr; |
| }; |
| |
| struct tcp_resources { |
| int32_t seq; |
| int32_t ack; |
| }; |
| |
| static uintptr_t syz_extract_tcp_res(uintptr_t a0, uintptr_t a1, |
| uintptr_t a2) |
| { |
| |
| if (tunfd < 0) |
| return (uintptr_t)-1; |
| |
| char data[SYZ_TUN_MAX_PACKET_SIZE]; |
| int rv = read_tun(&data[0], sizeof(data)); |
| if (rv == -1) |
| return (uintptr_t)-1; |
| size_t length = rv; |
| |
| struct tcphdr* tcphdr; |
| |
| if (length < sizeof(struct ethhdr)) |
| return (uintptr_t)-1; |
| struct ethhdr* ethhdr = (struct ethhdr*)&data[0]; |
| |
| if (ethhdr->h_proto == htons(ETH_P_IP)) { |
| if (length < sizeof(struct ethhdr) + sizeof(struct iphdr)) |
| return (uintptr_t)-1; |
| struct iphdr* iphdr = (struct iphdr*)&data[sizeof(struct ethhdr)]; |
| if (iphdr->protocol != IPPROTO_TCP) |
| return (uintptr_t)-1; |
| if (length < |
| sizeof(struct ethhdr) + iphdr->ihl * 4 + sizeof(struct tcphdr)) |
| return (uintptr_t)-1; |
| tcphdr = |
| (struct tcphdr*)&data[sizeof(struct ethhdr) + iphdr->ihl * 4]; |
| } else { |
| if (length < sizeof(struct ethhdr) + sizeof(struct ipv6hdr)) |
| return (uintptr_t)-1; |
| struct ipv6hdr* ipv6hdr = |
| (struct ipv6hdr*)&data[sizeof(struct ethhdr)]; |
| if (ipv6hdr->nexthdr != IPPROTO_TCP) |
| return (uintptr_t)-1; |
| if (length < sizeof(struct ethhdr) + sizeof(struct ipv6hdr) + |
| sizeof(struct tcphdr)) |
| return (uintptr_t)-1; |
| tcphdr = (struct tcphdr*)&data[sizeof(struct ethhdr) + |
| sizeof(struct ipv6hdr)]; |
| } |
| |
| struct tcp_resources* res = (struct tcp_resources*)a0; |
| res->seq = htonl((ntohl(tcphdr->seq) + (uint32_t)a1)); |
| res->ack = htonl((ntohl(tcphdr->ack_seq) + (uint32_t)a2)); |
| |
| return 0; |
| } |
| |
| static void test(); |
| |
| void loop() |
| { |
| while (1) { |
| test(); |
| } |
| } |
| |
| long r[191]; |
| void* thr(void* arg) |
| { |
| switch ((long)arg) { |
| case 0: |
| r[0] = syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul, |
| 0xfffffffffffffffful, 0x0ul); |
| break; |
| case 1: |
| r[1] = syscall(__NR_socket, 0xful, 0x3ul, 0x2ul); |
| break; |
| case 2: |
| memcpy((void*)0x20002ff0, "\x02\x12\xa1\x25\x02\x00\x00\x00\x09\x05" |
| "\x00\xd9\x1d\xfb\x37\x00", |
| 16); |
| r[3] = syscall(__NR_write, r[1], 0x20002ff0ul, 0x10ul); |
| break; |
| case 3: |
| r[4] = syscall(__NR_socket, 0x2ul, 0x1ul, 0x0ul); |
| break; |
| case 4: |
| *(uint16_t*)0x20001000 = (uint16_t)0x2; |
| *(uint16_t*)0x20001002 = (uint16_t)0x204e; |
| *(uint32_t*)0x20001004 = (uint32_t)0x0; |
| *(uint8_t*)0x20001008 = (uint8_t)0x0; |
| *(uint8_t*)0x20001009 = (uint8_t)0x0; |
| *(uint8_t*)0x2000100a = (uint8_t)0x0; |
| *(uint8_t*)0x2000100b = (uint8_t)0x0; |
| *(uint8_t*)0x2000100c = (uint8_t)0x0; |
| *(uint8_t*)0x2000100d = (uint8_t)0x0; |
| *(uint8_t*)0x2000100e = (uint8_t)0x0; |
| *(uint8_t*)0x2000100f = (uint8_t)0x0; |
| r[16] = syscall(__NR_bind, r[4], 0x20001000ul, 0x10ul); |
| break; |
| case 5: |
| r[17] = syscall(__NR_listen, r[4], 0x0ul); |
| break; |
| case 6: |
| *(uint8_t*)0x20002000 = (uint8_t)0xaa; |
| *(uint8_t*)0x20002001 = (uint8_t)0xaa; |
| *(uint8_t*)0x20002002 = (uint8_t)0xaa; |
| *(uint8_t*)0x20002003 = (uint8_t)0xaa; |
| *(uint8_t*)0x20002004 = (uint8_t)0xaa; |
| *(uint8_t*)0x20002005 = (uint8_t)0x0; |
| memcpy((void*)0x20002006, "\x4c\x61\x12\xcc\x15\xd8", 6); |
| *(uint16_t*)0x2000200c = (uint16_t)0x8; |
| STORE_BY_BITMASK(uint8_t, 0x2000200e, 0x5, 0, 4); |
| STORE_BY_BITMASK(uint8_t, 0x2000200e, 0x4, 4, 4); |
| STORE_BY_BITMASK(uint8_t, 0x2000200f, 0x0, 0, 2); |
| STORE_BY_BITMASK(uint8_t, 0x2000200f, 0x0, 2, 6); |
| *(uint16_t*)0x20002010 = (uint16_t)0x2800; |
| *(uint16_t*)0x20002012 = (uint16_t)0x6400; |
| *(uint16_t*)0x20002014 = (uint16_t)0x0; |
| *(uint8_t*)0x20002016 = (uint8_t)0x0; |
| *(uint8_t*)0x20002017 = (uint8_t)0x6; |
| *(uint16_t*)0x20002018 = (uint16_t)0x0; |
| *(uint8_t*)0x2000201a = (uint8_t)0xac; |
| *(uint8_t*)0x2000201b = (uint8_t)0x14; |
| *(uint8_t*)0x2000201c = (uint8_t)0x0; |
| *(uint8_t*)0x2000201d = (uint8_t)0xbb; |
| *(uint8_t*)0x2000201e = (uint8_t)0xac; |
| *(uint8_t*)0x2000201f = (uint8_t)0x14; |
| *(uint8_t*)0x20002020 = (uint8_t)0x0; |
| *(uint8_t*)0x20002021 = (uint8_t)0xaa; |
| *(uint16_t*)0x20002022 = (uint16_t)0x214e; |
| *(uint16_t*)0x20002024 = (uint16_t)0x204e; |
| *(uint32_t*)0x20002026 = (uint32_t)0x42424242; |
| *(uint32_t*)0x2000202a = (uint32_t)0x42424242; |
| STORE_BY_BITMASK(uint8_t, 0x2000202e, 0x0, 0, 1); |
| STORE_BY_BITMASK(uint8_t, 0x2000202e, 0x0, 1, 3); |
| STORE_BY_BITMASK(uint8_t, 0x2000202e, 0x5, 4, 4); |
| *(uint8_t*)0x2000202f = (uint8_t)0x2; |
| *(uint16_t*)0x20002030 = (uint16_t)0x0; |
| *(uint16_t*)0x20002032 = (uint16_t)0x0; |
| *(uint16_t*)0x20002034 = (uint16_t)0x0; |
| struct csum_inet csum_55; |
| csum_inet_init(&csum_55); |
| csum_inet_update(&csum_55, (const uint8_t*)0x2000201a, 4); |
| csum_inet_update(&csum_55, (const uint8_t*)0x2000201e, 4); |
| uint16_t csum_55_chunk_2 = 0x600; |
| csum_inet_update(&csum_55, (const uint8_t*)&csum_55_chunk_2, 2); |
| uint16_t csum_55_chunk_3 = 0x1400; |
| csum_inet_update(&csum_55, (const uint8_t*)&csum_55_chunk_3, 2); |
| csum_inet_update(&csum_55, (const uint8_t*)0x20002022, 20); |
| *(uint16_t*)0x20002032 = csum_inet_digest(&csum_55); |
| struct csum_inet csum_56; |
| csum_inet_init(&csum_56); |
| csum_inet_update(&csum_56, (const uint8_t*)0x2000200e, 20); |
| *(uint16_t*)0x20002018 = csum_inet_digest(&csum_56); |
| r[57] = syz_emit_ethernet(0x36ul, 0x20002000ul); |
| break; |
| case 7: |
| *(uint8_t*)0x2001a000 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a001 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a002 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a003 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a004 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a005 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a006 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a007 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a008 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a009 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a00a = (uint8_t)0x0; |
| *(uint8_t*)0x2001a00b = (uint8_t)0x0; |
| *(uint8_t*)0x2001a00c = (uint8_t)0x0; |
| *(uint8_t*)0x2001a00d = (uint8_t)0x0; |
| *(uint8_t*)0x2001a00e = (uint8_t)0x0; |
| *(uint8_t*)0x2001a00f = (uint8_t)0x0; |
| *(uint8_t*)0x2001a010 = (uint8_t)0xfe; |
| *(uint8_t*)0x2001a011 = (uint8_t)0x80; |
| *(uint8_t*)0x2001a012 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a013 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a014 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a015 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a016 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a017 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a018 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a019 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a01a = (uint8_t)0x0; |
| *(uint8_t*)0x2001a01b = (uint8_t)0x0; |
| *(uint8_t*)0x2001a01c = (uint8_t)0x0; |
| *(uint8_t*)0x2001a01d = (uint8_t)0x0; |
| *(uint8_t*)0x2001a01e = (uint8_t)0x0; |
| *(uint8_t*)0x2001a01f = (uint8_t)0xbb; |
| *(uint16_t*)0x2001a020 = (uint16_t)0x204e; |
| *(uint16_t*)0x2001a022 = (uint16_t)0x0; |
| *(uint16_t*)0x2001a024 = (uint16_t)0x204e; |
| *(uint16_t*)0x2001a026 = (uint16_t)0x0; |
| *(uint16_t*)0x2001a028 = (uint16_t)0xa; |
| *(uint8_t*)0x2001a02a = (uint8_t)0x0; |
| *(uint8_t*)0x2001a02b = (uint8_t)0x0; |
| *(uint8_t*)0x2001a02c = (uint8_t)0x0; |
| *(uint32_t*)0x2001a030 = (uint32_t)0x0; |
| *(uint32_t*)0x2001a034 = (uint32_t)0x0; |
| *(uint64_t*)0x2001a038 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a040 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a048 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a050 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a058 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a060 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a068 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a070 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a078 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a080 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a088 = (uint64_t)0x0; |
| *(uint64_t*)0x2001a090 = (uint64_t)0x0; |
| *(uint32_t*)0x2001a098 = (uint32_t)0x0; |
| *(uint32_t*)0x2001a09c = (uint32_t)0x0; |
| *(uint8_t*)0x2001a0a0 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0a1 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0a2 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0a3 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0a8 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0a9 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0aa = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0ab = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0ac = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0ad = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0ae = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0af = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0b0 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0b1 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0b2 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0b3 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0b4 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0b5 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0b6 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0b7 = (uint8_t)0x0; |
| *(uint32_t*)0x2001a0b8 = (uint32_t)0x0; |
| *(uint8_t*)0x2001a0bc = (uint8_t)0x0; |
| *(uint16_t*)0x2001a0c0 = (uint16_t)0x0; |
| *(uint8_t*)0x2001a0c4 = (uint8_t)0xac; |
| *(uint8_t*)0x2001a0c5 = (uint8_t)0x14; |
| *(uint8_t*)0x2001a0c6 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0c7 = (uint8_t)0xbb; |
| *(uint32_t*)0x2001a0d4 = (uint32_t)0x0; |
| *(uint8_t*)0x2001a0d8 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0d9 = (uint8_t)0x0; |
| *(uint8_t*)0x2001a0da = (uint8_t)0x5; |
| *(uint32_t*)0x2001a0dc = (uint32_t)0x0; |
| *(uint32_t*)0x2001a0e0 = (uint32_t)0x0; |
| *(uint32_t*)0x2001a0e4 = (uint32_t)0x0; |
| r[148] = syscall(__NR_setsockopt, r[4], 0x0ul, 0x11ul, 0x2001a000ul, |
| 0xe8ul); |
| break; |
| case 8: |
| r[149] = syz_extract_tcp_res(0x20016000ul, 0x1ul, 0x0ul); |
| if (r[149] != -1) |
| r[150] = *(uint32_t*)0x20016000; |
| break; |
| case 9: |
| *(uint8_t*)0x20004000 = (uint8_t)0xaa; |
| *(uint8_t*)0x20004001 = (uint8_t)0xaa; |
| *(uint8_t*)0x20004002 = (uint8_t)0xaa; |
| *(uint8_t*)0x20004003 = (uint8_t)0xaa; |
| *(uint8_t*)0x20004004 = (uint8_t)0xaa; |
| *(uint8_t*)0x20004005 = (uint8_t)0x0; |
| memcpy((void*)0x20004006, "\xa3\xe2\xd5\x5b\xa0\x7f", 6); |
| *(uint16_t*)0x2000400c = (uint16_t)0x8; |
| STORE_BY_BITMASK(uint8_t, 0x2000400e, 0x5, 0, 4); |
| STORE_BY_BITMASK(uint8_t, 0x2000400e, 0x4, 4, 4); |
| STORE_BY_BITMASK(uint8_t, 0x2000400f, 0x0, 0, 2); |
| STORE_BY_BITMASK(uint8_t, 0x2000400f, 0x0, 2, 6); |
| *(uint16_t*)0x20004010 = (uint16_t)0x2800; |
| *(uint16_t*)0x20004012 = (uint16_t)0x6400; |
| *(uint16_t*)0x20004014 = (uint16_t)0x0; |
| *(uint8_t*)0x20004016 = (uint8_t)0x0; |
| *(uint8_t*)0x20004017 = (uint8_t)0x6; |
| *(uint16_t*)0x20004018 = (uint16_t)0x0; |
| *(uint8_t*)0x2000401a = (uint8_t)0xac; |
| *(uint8_t*)0x2000401b = (uint8_t)0x14; |
| *(uint8_t*)0x2000401c = (uint8_t)0x0; |
| *(uint8_t*)0x2000401d = (uint8_t)0xbb; |
| *(uint8_t*)0x2000401e = (uint8_t)0xac; |
| *(uint8_t*)0x2000401f = (uint8_t)0x14; |
| *(uint8_t*)0x20004020 = (uint8_t)0x0; |
| *(uint8_t*)0x20004021 = (uint8_t)0xaa; |
| *(uint16_t*)0x20004022 = (uint16_t)0x214e; |
| *(uint16_t*)0x20004024 = (uint16_t)0x204e; |
| *(uint32_t*)0x20004026 = (uint32_t)0x42424242; |
| *(uint32_t*)0x2000402a = r[150]; |
| STORE_BY_BITMASK(uint8_t, 0x2000402e, 0x0, 0, 1); |
| STORE_BY_BITMASK(uint8_t, 0x2000402e, 0x0, 1, 3); |
| STORE_BY_BITMASK(uint8_t, 0x2000402e, 0x5, 4, 4); |
| *(uint8_t*)0x2000402f = (uint8_t)0x10; |
| *(uint16_t*)0x20004030 = (uint16_t)0x0; |
| *(uint16_t*)0x20004032 = (uint16_t)0x0; |
| *(uint16_t*)0x20004034 = (uint16_t)0x4000; |
| struct csum_inet csum_188; |
| csum_inet_init(&csum_188); |
| csum_inet_update(&csum_188, (const uint8_t*)0x2000401a, 4); |
| csum_inet_update(&csum_188, (const uint8_t*)0x2000401e, 4); |
| uint16_t csum_188_chunk_2 = 0x600; |
| csum_inet_update(&csum_188, (const uint8_t*)&csum_188_chunk_2, 2); |
| uint16_t csum_188_chunk_3 = 0x1400; |
| csum_inet_update(&csum_188, (const uint8_t*)&csum_188_chunk_3, 2); |
| csum_inet_update(&csum_188, (const uint8_t*)0x20004022, 20); |
| *(uint16_t*)0x20004032 = csum_inet_digest(&csum_188); |
| struct csum_inet csum_189; |
| csum_inet_init(&csum_189); |
| csum_inet_update(&csum_189, (const uint8_t*)0x2000400e, 20); |
| *(uint16_t*)0x20004018 = csum_inet_digest(&csum_189); |
| r[190] = syz_emit_ethernet(0x36ul, 0x20004000ul); |
| break; |
| } |
| return 0; |
| } |
| |
| void test() |
| { |
| long i; |
| pthread_t th[20]; |
| |
| memset(r, -1, sizeof(r)); |
| for (i = 0; i < 10; i++) { |
| pthread_create(&th[i], 0, thr, (void*)i); |
| usleep(rand() % 10000); |
| } |
| usleep(rand() % 100000); |
| } |
| |
| int main() |
| { |
| int i; |
| for (i = 0; i < 8; i++) { |
| if (fork() == 0) { |
| setup_tun(i, true); |
| loop(); |
| return 0; |
| } |
| } |
| sleep(1000000); |
| return 0; |
| } |
