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CVE-2022-21789 PoC — MediaTek audio ipi 竞争条件问题漏洞

Source
https://github.com/docfate111/CVE-2022-21789
Associated Vulnerability
Title:MediaTek audio ipi 竞争条件问题漏洞 (CVE-2022-21789)
Description:In audio ipi, there is a possible memory corruption due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS06478101; Issue ID: ALPS06478101.
Readme
# testing_Android_driver
bug i reported but someone reported first 


Scripts based on [pwnkernel](https://github.com/pwncollege/pwnkernel)
Building the kernel, busybox, and demo modules:

```
$ ./build.sh
```

Running the kernel:

```
$ ./launch.sh
```

All modules will be in `/`, ready to be `insmod`ed, and the host's home directory will be mounted as `/home/ctf` in the guest.
File Snapshot

 [4.0K]  /data/pocs/d5e2deae3e1f24f84eb575507ac5975fcf0cc5f7
├── [3.2K]  build.sh
├── [4.0K]  fs
│   ├── [4.0K]  etc
│   │   └── [ 136]  passwd
│   └── [ 294]  init
├── [ 556]  launch.sh
├── [ 382]  README.md
└── [4.0K]  src
    ├── [ 47K]  audio_ipi_dma.h
    ├── [ 18K]  audio_ipi_driver.c
    ├── [ 243]  audio_ipi.h
    ├── [ 338]  Makefile
    └── [1.1K]  test.c

3 directories, 10 files
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