Double Free Affecting kernel-64kb package, versions <5.14.21-150400.24.158.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-SLES154-KERNEL64KB-9533310
  • published27 Mar 2025
  • disclosed26 Mar 2025

Introduced: 26 Mar 2025

CVE-2022-49455  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-64kb to version 5.14.21-150400.24.158.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-64kb package and not the kernel-64kb package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

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

misc: ocxl: fix possible double free in ocxl_file_register_afu

info_release() will be called in device_unregister() when info->dev's reference count is 0. So there is no need to call ocxl_afu_put() and kfree() again.

Fix this by adding free_minor() and return to err_unregister error path.

CVSS Base Scores

version 3.1