🛡️ CVE-2024-43854
🟡 CVSS 5.5 — Medium ✅ No Known Exploit CWE-401 NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE CWE-401
Public Exploit ✅ No
Source NVD
Published 2024-08-17
Updated 2026-06-02
Modified 2025-11-03

Affected Packages

Software From version Fixed in
linux-kernel 6.7 6.10.3

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