cve/2024/CVE-2024-36974.md

### [CVE-2024-36974](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-36974)
![](https://img.shields.io/static/v1?label=Product&message=Linux&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=5.2%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=a3d43c0d56f1b94e74963a2fbadfb70126d92213%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=blue)

### Description

In the Linux kernel, the following vulnerability has been resolved:net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAPIf one TCA_TAPRIO_ATTR_PRIOMAP attribute has been provided,taprio_parse_mqprio_opt() must validate it, or userspacecan inject arbitrary data to the kernel, the second timetaprio_change() is called.First call (with valid attributes) sets dev->num_tcto a non zero value.Second call (with arbitrary mqprio attributes)returns early from taprio_parse_mqprio_opt()and bad things can happen.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/xairy/linux-kernel-exploitation