cve/2023/CVE-2023-52462.md

### [CVE-2023-52462](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-52462)
![](https://img.shields.io/static/v1?label=Product&message=Linux&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=cdd73a5ed084%3C%202757f17972d8%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:bpf: fix check for attempt to corrupt spilled pointerWhen register is spilled onto a stack as a 1/2/4-byte register, we setslot_type[BPF_REG_SIZE - 1] (plus potentially few more below it,depending on actual spill size). So to check if some stack slot hasspilled register we need to consult slot_type[7], not slot_type[0].To avoid the need to remember and double-check this in the future, justuse is_spilled_reg() helper.

### POC

#### Reference
No PoCs from references.

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