NULL Pointer Dereference Affecting kernel-headers package, versions <0:5.14.0-162.6.1.el9_1


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.02% (3rd percentile)

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  • Snyk IDSNYK-CENTOS9-KERNELHEADERS-9059485
  • published5 Mar 2025
  • disclosed26 Feb 2025

Introduced: 26 Feb 2025

CVE-2021-47657  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Centos:9 kernel-headers to version 0:5.14.0-162.6.1.el9_1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers 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:

drm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()

If virtio_gpu_object_shmem_init() fails (e.g. due to fault injection, as it happened in the bug report by syzbot), virtio_gpu_array_put_free() could be called with objs equal to NULL.

Ensure that objs is not NULL in virtio_gpu_array_put_free(), or otherwise return from the function.

CVSS Base Scores

version 3.1