cve/2023/CVE-2023-52615.md

### [CVE-2023-52615](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52615)
![](https://img.shields.io/static/v1?label=Product&message=Linux&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=9996508b3353%3C%20eafd83b92f6c%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:hwrng: core - Fix page fault dead lock on mmap-ed hwrngThere is a dead-lock in the hwrng device read path.  This triggerswhen the user reads from /dev/hwrng into memory also mmap-ed from/dev/hwrng.  The resulting page fault triggers a recursive readwhich then dead-locks.Fix this by using a stack buffer when calling copy_to_user.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/NaInSec/CVE-LIST