// https://syzkaller.appspot.com/bug?id=c50f1f108950ba0955e75bb0af5c4d28375185ba // autogenerated by syzkaller (https://github.com/google/syzkaller) #define _GNU_SOURCE #include #include #include #include #include #include #include #include uint64_t r[1] = {0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); long res = 0; memcpy((void*)0x20000000, "./file0\x00", 8); syscall(__NR_mkdirat, 0xffffff9c, 0x20000000, 0); memcpy((void*)0x200000c0, "/dev/fuse\x00", 10); res = syscall(__NR_openat, 0xffffffffffffff9c, 0x200000c0, 2, 0); if (res != -1) r[0] = res; memcpy((void*)0x20000100, "./file0\x00", 8); memcpy((void*)0x20000300, "fuse\x00", 5); memcpy((void*)0x20000400, "fd", 2); *(uint8_t*)0x20000402 = 0x3d; sprintf((char*)0x20000403, "0x%016llx", (long long)r[0]); *(uint8_t*)0x20000415 = 0x2c; memcpy((void*)0x20000416, "rootmode", 8); *(uint8_t*)0x2000041e = 0x3d; sprintf((char*)0x2000041f, "%023llo", (long long)0x4000); *(uint8_t*)0x20000436 = 0x2c; memcpy((void*)0x20000437, "user_id", 7); *(uint8_t*)0x2000043e = 0x3d; sprintf((char*)0x2000043f, "%020llu", (long long)0); *(uint8_t*)0x20000453 = 0x2c; memcpy((void*)0x20000454, "group_id", 8); *(uint8_t*)0x2000045c = 0x3d; sprintf((char*)0x2000045d, "%020llu", (long long)0); *(uint8_t*)0x20000471 = 0x2c; *(uint8_t*)0x20000472 = 0; syscall(__NR_mount, 0, 0x20000100, 0x20000300, 0, 0x20000400); syscall(__NR_read, r[0], 0x200040c0, 0x1000); *(uint32_t*)0x20000240 = 0x10; *(uint32_t*)0x20000244 = 0; *(uint64_t*)0x20000248 = 2; syscall(__NR_write, r[0], 0x20000240, 0x10); *(uint32_t*)0x20000080 = 0x30; *(uint32_t*)0x20000084 = 5; *(uint64_t*)0x20000088 = 0; *(uint64_t*)0x20000090 = 0; *(uint64_t*)0x20000098 = 1; *(uint64_t*)0x200000a0 = 0; *(uint32_t*)0x200000a8 = 9; *(uint32_t*)0x200000ac = 0; syscall(__NR_write, r[0], 0x20000080, 0x30); return 0; }