cve/2023/CVE-2023-1295.md

### [CVE-2023-1295](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1295)
![](https://img.shields.io/static/v1?label=Product&message=Linux%20Kernel&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=5.6%3C%3D%205.11%20&color=brighgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-367%20Time-of-check%20Time-of-use%20(TOCTOU)%20Race%20Condition&color=brighgreen)

### Description

A time-of-check to time-of-use issue exists in io_uring subsystem's IORING_OP_CLOSE operation in the Linux kernel's versions 5.6 - 5.11 (inclusive), which allows a local user to elevate their privileges to root. Introduced in b5dba59e0cf7e2cc4d3b3b1ac5fe81ddf21959eb, patched in 9eac1904d3364254d622bf2c771c4f85cd435fc2, backported to stable in 788d0824269bef539fe31a785b1517882eafed93.

### POC

#### Reference
No PoCs from references.

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