// https://syzkaller.appspot.com/bug?id=b2a93e73cd8951b455c5c28291908e5f25e49c48 // autogenerated by syzkaller (http://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff}; void loop() { long res = 0; memcpy((void*)0x200001c0, "./file0", 8); syscall(__NR_mkdir, 0x200001c0, 0); res = syscall(__NR_pipe2, 0x200030c0, 0); if (res != -1) { r[0] = *(uint32_t*)0x200030c0; r[1] = *(uint32_t*)0x200030c4; } *(uint32_t*)0x20000040 = 0xb; *(uint8_t*)0x20000044 = 0x65; *(uint16_t*)0x20000045 = -1; *(uint32_t*)0x20000047 = 5; *(uint16_t*)0x2000004b = 8; memcpy((void*)0x2000004d, "9P2000.u", 8); syscall(__NR_write, r[1], 0x20000040, 0x15); memcpy((void*)0x20000140, "./file0", 8); memcpy((void*)0x20000180, "9p", 3); memcpy((void*)0x20000200, "trans=fd,", 9); memcpy((void*)0x20000209, "rfdno", 5); *(uint8_t*)0x2000020e = 0x3d; sprintf((char*)0x2000020f, "0x%016llx", (long long)r[0]); *(uint8_t*)0x20000221 = 0x2c; memcpy((void*)0x20000222, "wfdno", 5); *(uint8_t*)0x20000227 = 0x3d; sprintf((char*)0x20000228, "0x%016llx", (long long)r[1]); *(uint8_t*)0x2000023a = 0x2c; *(uint8_t*)0x2000023b = 0; syscall(__NR_mount, 0, 0x20000140, 0x20000180, 0, 0x20000200); } int main() { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); loop(); return 0; }