CVE-2023-52679 Affecting kernel-rt-debug-modules-extra package, versions <0:4.18.0-553.16.1.rt7.357.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELRTDEBUGMODULESEXTRA-7658517
  • published9 Aug 2024
  • disclosed8 Aug 2024

Introduced: 8 Aug 2024

CVE-2023-52679  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-rt-debug-modules-extra to version 0:4.18.0-553.16.1.rt7.357.el8_10 or higher.
This issue was patched in ALSA-2024:5102.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules-extra package and not the kernel-rt-debug-modules-extra package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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

of: Fix double free in of_parse_phandle_with_args_map

In of_parse_phandle_with_args_map() the inner loop that iterates through the map entries calls of_node_put(new) to free the reference acquired by the previous iteration of the inner loop. This assumes that the value of "new" is NULL on the first iteration of the inner loop.

Make sure that this is true in all iterations of the outer loop by setting "new" to NULL after its value is assigned to "cur".

Extend the unittest to detect the double free and add an additional test case that actually triggers this path.

CVSS Scores

version 3.1