cve/2023/CVE-2023-23003.md

### [CVE-2023-23003](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-23003)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
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### Description

In the Linux kernel before 5.16, tools/perf/util/expr.c lacks a check for the hashmap__new return value.

### POC

#### Reference
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16

#### Github
No PoCs found on GitHub currently.