// https://syzkaller.appspot.com/bug?id=13abcb2c9eea7e408f8e25d3a9ae401754723024 // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include static void sleep_ms(uint64_t ms) { usleep(ms * 1000); } static uint64_t current_time_ms() { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) exit(1); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } #define SYZ_HAVE_SETUP_TEST 1 static void setup_test() { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); } #define SYZ_HAVE_RESET_TEST 1 static void reset_test() { int fd; for (fd = 3; fd < 30; fd++) close(fd); } static void execute_one(); #define WAIT_FLAGS __WALL static void loop() { int iter; for (iter = 0;; iter++) { int pid = fork(); if (pid < 0) exit(1); if (pid == 0) { setup_test(); execute_one(); reset_test(); exit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid) break; sleep_ms(1); if (current_time_ms() - start < 5 * 1000) continue; kill(-pid, SIGKILL); kill(pid, SIGKILL); while (waitpid(-1, &status, WAIT_FLAGS) != pid) { } break; } } } uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; void execute_one() { long res = 0; res = syscall(__NR_socket, 0xa, 2, 0); if (res != -1) r[0] = res; *(uint16_t*)0x20000080 = 0xa; *(uint16_t*)0x20000082 = htobe16(0); *(uint32_t*)0x20000084 = 0; *(uint8_t*)0x20000088 = -1; *(uint8_t*)0x20000089 = 2; *(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 = 3; syscall(__NR_connect, r[0], 0x20000080, 0x1c); res = syscall(__NR_socket, 0x18, 1, 1); if (res != -1) r[1] = res; *(uint16_t*)0x205fafd2 = 0x18; *(uint32_t*)0x205fafd4 = 1; *(uint32_t*)0x205fafd8 = 0; *(uint32_t*)0x205fafdc = r[0]; *(uint16_t*)0x205fafe0 = 2; *(uint16_t*)0x205fafe2 = htobe16(0); *(uint32_t*)0x205fafe4 = htobe32(0xe0000002); *(uint8_t*)0x205fafe8 = 0; *(uint8_t*)0x205fafe9 = 0; *(uint8_t*)0x205fafea = 0; *(uint8_t*)0x205fafeb = 0; *(uint8_t*)0x205fafec = 0; *(uint8_t*)0x205fafed = 0; *(uint8_t*)0x205fafee = 0; *(uint8_t*)0x205fafef = 0; *(uint32_t*)0x205faff0 = 4; *(uint32_t*)0x205faff4 = 0; *(uint32_t*)0x205faff8 = 0; *(uint32_t*)0x205faffc = 0; syscall(__NR_connect, r[1], 0x205fafd2, 0x2e); } int main() { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); loop(); return 0; }