// https://syzkaller.appspot.com/bug?id=95abfa7feeb1b111f6991798f0587771d69674a5 // 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; 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); *(uint64_t*)0x20000280 = 0x200000c0; *(uint16_t*)0x200000c0 = 3; memcpy((void*)0x200000c2, "\x67\x1b\xba\x8a\x07\x2a\xd4\x04\xeb\x36\x17\xc2\x8c\x00\x02\x5e\x09" "\xc6\xa0\xd4\xfc\x37\x35\xe9\xa3\x01\x50\x63\x5a\x98\x33\x44\x34\xa2" "\x43\x92\xdf\x1e\x6c\xfa\x0c\xf4\xd8\x33\x34\x87\xbc\x7d\x5e\xd5\x3c" "\x77\xde\xf4\xea\xe7\x71\x68\x86\xa4\xed\x93\x91\xa5\xa4\xce\x3d\x6f" "\x8a\xee\xa5\x6a\xda\x76\xb6\x58\xd6\x72\x75\xc5\x7a\x73\x18\x07\x20" "\xf3\xab\xc1\x19\xa4\xfe\x38\x90\x1a\xc5\x70\x2f\x54\xab\x28\xc7\x58" "\x59\xa8\xbc\xdc\x3c\xab\xef\x3a\xb8\x32\x0f\x71\xfd\xff\x87\xc0\x19" "\xcf\xcd\xcd\x26\xee\x56\x39", 126); *(uint32_t*)0x20000288 = 0x80; *(uint64_t*)0x20000290 = 0x20000240; *(uint64_t*)0x20000240 = 0x20000140; *(uint64_t*)0x20000248 = 0; *(uint64_t*)0x20000250 = 0x20000300; *(uint64_t*)0x20000258 = 0; *(uint64_t*)0x20000260 = 0x20001040; *(uint64_t*)0x20000268 = 0; *(uint64_t*)0x20000270 = 0x20000400; *(uint64_t*)0x20000278 = 0; *(uint64_t*)0x20000298 = 4; *(uint64_t*)0x200002a0 = 0; *(uint64_t*)0x200002a8 = 0; *(uint32_t*)0x200002b0 = 0x10; syscall(__NR_sendmsg, r[0], 0x20000280, 0x40400c0); } int main() { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); loop(); return 0; }