cve/2024/CVE-2024-43854.md

### [CVE-2024-43854](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-43854)
![](https://img.shields.io/static/v1?label=Product&message=Linux&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=2.6.27%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=7ba1ba12eeef0aa7113beb16410ef8b7c748e18b%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=blue)

### Description

In the Linux kernel, the following vulnerability has been resolved:block: initialize integrity buffer to zero before writing it to mediaMetadata added by bio_integrity_prep is using plain kmalloc, which leadsto random kernel memory being written media.  For PI metadata this islimited to the app tag that isn't used by kernel generated metadata,but for non-PI metadata the entire buffer leaks kernel memory.Fix this by adding the __GFP_ZERO flag to allocations for writes.

### POC

#### Reference
No PoCs from references.

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