NULL Pointer Dereference Affecting kernel-devel-matched package, versions <0:5.14.0-362.8.1.el9_3


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-CENTOS9-KERNELDEVELMATCHED-9935910
  • published2 May 2025
  • disclosed1 May 2025

Introduced: 1 May 2025

CVE-2022-49875  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Centos:9 kernel-devel-matched to version 0:5.14.0-362.8.1.el9_3 or higher.

NVD Description

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

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

bpftool: Fix NULL pointer dereference when pin {PROG, MAP, LINK} without FILE

When using bpftool to pin {PROG, MAP, LINK} without FILE, segmentation fault will occur. The reson is that the lack of FILE will cause strlen to trigger NULL pointer dereference. The corresponding stacktrace is shown below:

do_pin do_pin_any do_pin_fd mount_bpffs_for_pin strlen(name) <- NULL pointer dereference

Fix it by adding validation to the common process.

CVSS Base Scores

version 3.1