Improper Update of Reference Count Affecting perf6.12-debuginfo package, versions <1:6.12.63-84.121.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.17% (7th percentile)

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  • Snyk IDSNYK-AMZN2023-PERF612DEBUGINFO-15320881
  • published19 Feb 2026
  • disclosed24 Dec 2025

Introduced: 24 Dec 2025

CVE-2025-68744  (opens in a new tab)
CWE-911  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 perf6.12-debuginfo to version 1:6.12.63-84.121.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1430.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf6.12-debuginfo package and not the perf6.12-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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

bpf: Free special fields when update [lru_,]percpu_hash maps

As [lru_,]percpu_hash maps support BPF_KPTR_{REF,PERCPU}, missing calls to 'bpf_obj_free_fields()' in 'pcpu_copy_value()' could cause the memory referenced by BPF_KPTR_{REF,PERCPU} fields to be held until the map gets freed.

Fix this by calling 'bpf_obj_free_fields()' after 'copy_map_value,_long' in 'pcpu_copy_value()'.

CVSS Base Scores

version 3.1