CVEs-PoC/2021/CVE-2021-1940.md

### [CVE-2021-1940](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1940)
![](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%20Voice%20%26%20Music%2C%20Snapdragon%20Wearables&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=AQT1000%2C%20AR8031%2C%20AR8035%2C%20CSRA6620%2C%20CSRA6640%2C%20FSM10055%2C%20FSM10056%2C%20QCA6391%2C%20QCA6420%2C%20QCA6430%2C%20QCA6564%2C%20QCA6564A%2C%20QCA6564AU%2C%20QCA6574%2C%20QCA6574A%2C%20QCA6574AU%2C%20QCA6584AU%2C%20QCA6595AU%2C%20QCA6696%2C%20QCA8337%2C%20QCM6125%2C%20QCS405%2C%20QCS410%2C%20QCS610%2C%20QCS6125%2C%20SA415M%2C%20SA515M%2C%20SA6145P%2C%20SA6155%2C%20SA6155P%2C%20SA8155%2C%20SA8155P%2C%20SA8195P%2C%20SD%20675%2C%20SD%208C%2C%20SD%208CX%2C%20SD660%2C%20SD665%2C%20SD675%2C%20SD678%2C%20SD720G%2C%20SD730%2C%20SD855%2C%20SDA429W%2C%20SDX50M%2C%20SDX55%2C%20SDX55M%2C%20SM6250%2C%20SM6250P%2C%20WCD9335%2C%20WCD9340%2C%20WCD9341%2C%20WCD9370%2C%20WCD9375%2C%20WCD9380%2C%20WCN3610%2C%20WCN3620%2C%20WCN3660B%2C%20WCN3950%2C%20WCN3980%2C%20WCN3988%2C%20WCN3990%2C%20WCN3991%2C%20WCN3998%2C%20WCN3999%2C%20WSA8810%2C%20WSA8815%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=Use%20After%20Free%20in%20Neural%20Processing&color=brightgreen)

### Description

Use after free can occur due to improper handling of response from firmware in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

### POC

#### Reference
- http://packetstormsecurity.com/files/172856/Qualcomm-NPU-Use-After-Free-Information-Leak.html
- https://www.qualcomm.com/company/product-security/bulletins/july-2021-bulletin

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/kdn111/linux-kernel-exploitation
- https://github.com/khanhdn111/linux-kernel-exploitation
- https://github.com/khanhdz-06/linux-kernel-exploitation
- https://github.com/khanhdz191/linux-kernel-exploitation
- https://github.com/khanhhdz/linux-kernel-exploitation
- https://github.com/khanhhdz06/linux-kernel-exploitation
- https://github.com/khanhnd123/linux-kernel-exploitation
- https://github.com/khnhdz/linux-kernel-exploitation
- https://github.com/knd06/linux-kernel-exploitation
- https://github.com/ndk06/linux-kernel-exploitation
- https://github.com/ndk191/linux-kernel-exploitation
- https://github.com/ssr-111/linux-kernel-exploitation
- https://github.com/wkhnh06/linux-kernel-exploitation
- https://github.com/xairy/linux-kernel-exploitation