Expired Pointer Dereference Affecting rv package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.02% (5th percentile)

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  • Snyk IDSNYK-RHEL10-RV-16554685
  • published9 May 2026
  • disclosed8 May 2026

Introduced: 8 May 2026

NewCVE-2026-43447  (opens in a new tab)
CWE-825  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 rv.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rv package and not the rv package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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

iavf: fix PTP use-after-free during reset

Commit 7c01dbfc8a1c5f ("iavf: periodically cache PHC time") introduced a worker to cache PHC time, but failed to stop it during reset or disable.

This creates a race condition where iavf_reset_task() or iavf_disable_vf() free adapter resources (AQ) while the worker is still running. If the worker triggers iavf_queue_ptp_cmd() during teardown, it accesses freed memory/locks, leading to a crash.

Fix this by calling iavf_ptp_release() before tearing down the adapter. This ensures ptp_clock_unregister() synchronously cancels the worker and cleans up the chardev before the backing resources are destroyed.

CVSS Base Scores

version 3.1