// autogenerated by syzkaller (http://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include __attribute__((noreturn)) static void doexit(int status) { volatile unsigned i; syscall(__NR_exit_group, status); for (i = 0;; i++) { } } #include #include 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); } static uint64_t current_time_ms() { struct timespec ts; if (clock_gettime(CLOCK_MONOTONIC, &ts)) fail("clock_gettime failed"); return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000; } static void test(); void loop() { int iter; for (iter = 0;; iter++) { int pid = fork(); if (pid < 0) fail("loop fork failed"); if (pid == 0) { prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0); setpgrp(); test(); doexit(0); } int status = 0; uint64_t start = current_time_ms(); for (;;) { int res = waitpid(-1, &status, __WALL | WNOHANG); if (res == pid) break; usleep(1000); if (current_time_ms() - start > 5 * 1000) { kill(-pid, SIGKILL); kill(pid, SIGKILL); while (waitpid(-1, &status, __WALL) != pid) { } break; } } } } long r[63]; void test() { memset(r, -1, sizeof(r)); r[0] = syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul, 0xfffffffffffffffful, 0x0ul); r[1] = syscall(__NR_socket, 0x26ul, 0x5ul, 0x0ul); *(uint16_t*)0x20f3b000 = (uint16_t)0x26; memcpy((void*)0x20f3b002, "\x61\x65\x61\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 14); *(uint32_t*)0x20f3b010 = (uint32_t)0x0; *(uint32_t*)0x20f3b014 = (uint32_t)0x0; memcpy((void*)0x20f3b018, "\x65\x63\x68\x61\x69\x6e\x69\x76\x28\x72\x66\x63\x34\x31\x30" "\x36\x28\x67\x63\x6d\x28\x61\x65\x73\x29\x29\x29\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", 64); r[7] = syscall(__NR_bind, r[1], 0x20f3b000ul, 0x58ul); memcpy((void*)0x20890fec, "\x79\x73\x39\x76\xd8\xc3\x0a\x4a\xea\xd9" "\x60\xf2\xbd\x08\xcf\xe6\x27\x85\xce\x10", 20); r[9] = syscall(__NR_setsockopt, r[1], 0x117ul, 0x1ul, 0x20890fecul, 0x14ul); r[10] = syscall(__NR_accept, r[1], 0x0ul, 0x0ul); *(uint32_t*)0x20216ff8 = (uint32_t)0x0; *(uint32_t*)0x20216ffc = (uint32_t)0x4; *(uint32_t*)0x20c02000 = (uint32_t)0x8; r[14] = syscall(__NR_getsockopt, 0xfffffffffffffffful, 0x84ul, 0x77ul, 0x20216ff8ul, 0x20c02000ul); *(uint64_t*)0x20b85000 = (uint64_t)0x0; *(uint32_t*)0x20b85008 = (uint32_t)0x0; *(uint64_t*)0x20b85010 = (uint64_t)0x20215fe0; *(uint64_t*)0x20b85018 = (uint64_t)0x1; *(uint64_t*)0x20b85020 = (uint64_t)0x20000000; *(uint64_t*)0x20b85028 = (uint64_t)0x0; *(uint32_t*)0x20b85030 = (uint32_t)0x0; *(uint64_t*)0x20215fe0 = (uint64_t)0x20f20000; *(uint64_t*)0x20215fe8 = (uint64_t)0xba; memcpy((void*)0x20f20000, "\x2f\x25\x30\x43\x1c\x0b\x7f\x5d\x17\x6c\x9f\x1d\xae\xfd\xc3" "\x35\xbf\x0b\x12\x00\xc9\xc7\xbc\x73\x00\x8c\x21\x69\x0f\x3d" "\x29\xde\xd9\x6e\x6c\x4f\x43\x03\xe4\xfd\xfd\x7f\x7a\x03\xc2" "\x27\x73\x1a\x9e\x8b\x89\x94\x68\x9b\x81\xf0\xba\xb7\xd9\x0c" "\x93\xc3\x88\x31\x37\xea\xbf\xc6\x78\x71\x64\xe0\xed\xf7\x44" "\xb4\xce\x06\xea\x1b\x30\x9b\xa2\xed\xfd\x8a\xc6\xd7\x08\x5d" "\x99\x58\xa3\x99\x0c\x5b\x2b\x03\xf8\xef\x1d\x9b\x69\x20\x88" "\x60\x08\x42\xec\xfd\x9e\xff\xca\xcd\x08\x9c\xdc\x4c\x60\x94" "\xc7\x6f\x05\x96\xb0\x65\x76\x29\xcc\xad\xe8\xc3\xcb\x17\x58" "\x07\x27\x64\x9a\xc3\xf8\x0f\xf2\xfb\x40\xa6\x38\x17\xe4\x87" "\x19\x7d\xe1\x38\xea\x72\xb3\x1a\x27\x07\xad\x55\x29\xc4\x64" "\x08\xfc\x02\x63\x1b\x8e\x9b\xf0\x01\x24\xaa\xdc\xd7\x02\xef" "\x48\xc5\xfd\xd1\x3f\x11", 186); r[25] = syscall(__NR_sendmsg, r[10], 0x20b85000ul, 0x0ul); r[26] = syscall(__NR_io_setup, 0x3ul, 0x20e4b000ul); if (r[26] != -1) r[27] = *(uint64_t*)0x20e4b000; *(uint64_t*)0x20bd9fe0 = (uint64_t)0x20617fc0; *(uint64_t*)0x20bd9fe8 = (uint64_t)0x20097fc0; *(uint64_t*)0x20617fc0 = (uint64_t)0x0; *(uint32_t*)0x20617fc8 = (uint32_t)0x0; *(uint32_t*)0x20617fcc = (uint32_t)0x0; *(uint16_t*)0x20617fd0 = (uint16_t)0x0; *(uint16_t*)0x20617fd2 = (uint16_t)0x0; *(uint32_t*)0x20617fd4 = r[10]; *(uint64_t*)0x20617fd8 = (uint64_t)0x2007d000; *(uint64_t*)0x20617fe0 = (uint64_t)0x10; *(uint64_t*)0x20617fe8 = (uint64_t)0x0; *(uint64_t*)0x20617ff0 = (uint64_t)0x0; *(uint32_t*)0x20617ff8 = (uint32_t)0x0; *(uint32_t*)0x20617ffc = (uint32_t)0xffffffffffffffff; memcpy((void*)0x2007d000, "\xb3\xb0\x39\x96\xff\x05\xab\xb1\xe8\xb1" "\xc2\x4b\x50\x89\x8d\x8f", 16); *(uint64_t*)0x20097fc0 = (uint64_t)0x0; *(uint32_t*)0x20097fc8 = (uint32_t)0x0; *(uint32_t*)0x20097fcc = (uint32_t)0x0; *(uint16_t*)0x20097fd0 = (uint16_t)0x7; *(uint16_t*)0x20097fd2 = (uint16_t)0xca9; *(uint32_t*)0x20097fd4 = (uint32_t)0xffffffffffffffff; *(uint64_t*)0x20097fd8 = (uint64_t)0x202b9000; *(uint64_t*)0x20097fe0 = (uint64_t)0x0; *(uint64_t*)0x20097fe8 = (uint64_t)0x10000; *(uint64_t*)0x20097ff0 = (uint64_t)0x0; *(uint32_t*)0x20097ff8 = (uint32_t)0x1; *(uint32_t*)0x20097ffc = (uint32_t)0xffffffffffffffff; r[55] = syscall(__NR_io_submit, r[27], 0x2ul, 0x20bd9fe0ul); r[56] = syscall(__NR_socket, 0x26ul, 0x5ul, 0x0ul); *(uint16_t*)0x20886000 = (uint16_t)0x26; memcpy((void*)0x20886002, "\x61\x65\x61\x64\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 14); *(uint32_t*)0x20886010 = (uint32_t)0x0; *(uint32_t*)0x20886014 = (uint32_t)0xf; memcpy((void*)0x20886018, "\x72\x66\x63\x34\x33\x30\x39\x28\x70\x63\x72\x79\x70\x74\x28" "\x70\x63\x72\x79\x70\x74\x28\x72\x66\x63\x34\x31\x30\x36\x28" "\x67\x63\x6d\x28\x61\x65\x73\x29\x29\x29\x29\x29\x00\x00\x00" "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00" "\x00\x00\x00\x00", 64); r[62] = syscall(__NR_bind, r[56], 0x20886000ul, 0x58ul); } int main() { loop(); return 0; }