NULL Pointer Dereference Affecting kernel-zfcpdump-devel package, versions <0:5.14.0-427.13.1.el9_4


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-RHEL9-KERNELZFCPDUMPDEVEL-10060907
  • published7 May 2025
  • disclosed27 Mar 2025

Introduced: 27 Mar 2025

CVE-2023-52976  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-zfcpdump-devel to version 0:5.14.0-427.13.1.el9_4 or higher.
This issue was patched in RHSA-2024:2394.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-devel package and not the kernel-zfcpdump-devel package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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

efi: fix potential NULL deref in efi_mem_reserve_persistent

When iterating on a linked list, a result of memremap is dereferenced without checking it for NULL.

This patch adds a check that falls back on allocating a new page in case memremap doesn't succeed.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

[ardb: return -ENOMEM instead of breaking out of the loop]

CVSS Base Scores

version 3.1