Description

In the Linux kernel, the following vulnerability has been resolved: block: initialize integrity buffer to zero before writing it to media Metadata added by bio_integrity_prep is using plain kmalloc, which leads to random kernel memory being written media. For PI metadata this is limited 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.

INFO

Published Date :

2024-08-17T09:22:11.297Z

Last Modified :

2025-11-03T22:05:51.729Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2024-43854 vulnerability.

Vendors Products
Linux
  • Linux Kernel
Redhat
  • Enterprise Linux
  • Rhel Eus

CVSS Vulnerability Scoring System

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