cve/2023/CVE-2023-52445.md

### [CVE-2023-52445](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52445)
![](https://img.shields.io/static/v1?label=Product&message=Linux&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=e5be15c63804%3C%20ec36c134dd02%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

In the Linux kernel, the following vulnerability has been resolved:media: pvrusb2: fix use after free on context disconnectionUpon module load, a kthread is created targeting thepvr2_context_thread_func function, which may call pvr2_context_destroyand thus call kfree() on the context object. However, that might happenbefore the usb hub_event handler is able to notify the driver. Thispatch adds a sanity check before the invalid read reported by syzbot,within the context disconnection call stack.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/fkie-cad/nvd-json-data-feeds