Missing Release of Resource after Effective Lifetime Affecting perf-debuginfo package, versions <1:6.1.176-220.358.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-AMZN2023-PERFDEBUGINFO-17888779
  • published8 Jul 2026
  • disclosed8 Jun 2026

Introduced: 8 Jun 2026

CVE-2026-46292  (opens in a new tab)
CWE-772  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 perf-debuginfo to version 1:6.1.176-220.358.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1924.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf-debuginfo package and not the perf-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:

pmdomain: core: Fix detach procedure for virtual devices in genpd

If a device is attached to a PM domain through genpd_dev_pm_attach_by_id(), genpd calls pm_runtime_enable() for the corresponding virtual device that it registers. While this avoids boilerplate code in drivers, there is no corresponding call to pm_runtime_disable() in genpd_dev_pm_detach().

This means these virtual devices are typically detached from its genpd, while runtime PM remains enabled for them, which is not how things are designed to work. In worst cases it may lead to critical errors, like a NULL pointer dereference bug in genpd_runtime_suspend(), which was recently reported. For another case, we may end up keeping an unnecessary vote for a performance state for the device.

To fix these problems, let's add this missing call to pm_runtime_disable() in genpd_dev_pm_detach().

CVSS Base Scores

version 3.1