cve/2019/CVE-2019-14079.md

### [CVE-2019-14079](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14079)
![](https://img.shields.io/static/v1?label=Product&message=Snapdragon%20Auto%2C%20Snapdragon%20Compute%2C%20Snapdragon%20Consumer%20IOT%2C%20Snapdragon%20Industrial%20IOT%2C%20Snapdragon%20Mobile%2C%20Snapdragon%20Wearables&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Use%20of%20uninitialized%20Variable%20in%20USB%20Connectivity&color=brighgreen)

### Description

Access to the uninitialized variable when the driver tries to unmap the dma buffer of a request which was never mapped in the first place leading to kernel failure in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables in APQ8009, APQ8053, MDM9607, MDM9640, MSM8909W, MSM8953, QCA6574AU, QCS605, SDA845, SDM429, SDM429W, SDM439, SDM450, SDM632, SDM670, SDM710, SDM845, SDX24, SM8150, SXR1130

### POC

#### Reference
- https://www.qualcomm.com/company/product-security/bulletins/march-2020-bulletin
- https://www.qualcomm.com/company/product-security/bulletins/march-2020-bulletin

#### Github
- https://github.com/0xT11/CVE-POC
- https://github.com/developer3000S/PoC-in-GitHub
- https://github.com/hectorgie/PoC-in-GitHub
- https://github.com/parallelbeings/CVE-2019-14079