NULL Pointer Dereference Affecting kernel-rt-debug-kvm package, versions *


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-CENTOS7-KERNELRTDEBUGKVM-8867687
  • published28 Feb 2025
  • disclosed21 Oct 2024

Introduced: 21 Oct 2024

CVE-2024-47743  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 kernel-rt-debug-kvm.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-kvm package and not the kernel-rt-debug-kvm package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

KEYS: prevent NULL pointer dereference in find_asymmetric_key()

In find_asymmetric_key(), if all NULLs are passed in the id_{0,1,2} arguments, the kernel will first emit WARN but then have an oops because id_2 gets dereferenced anyway.

Add the missing id_2 check and move WARN_ON() to the final else branch to avoid duplicate NULL checks.

Found by Linux Verification Center (linuxtesting.org) with Svace static analysis tool.

CVSS Base Scores

version 3.1