CVE-2026-64515 Affecting libperf package, versions <0:5.14.0-687.47.1.el9_8


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.24% (15th percentile)

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  • Snyk IDSNYK-ROCKY9-LIBPERF-19851075
  • published16 Sept 2026
  • disclosed25 Jul 2026

Introduced: 25 Jul 2026

CVE-2026-64515  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 libperf to version 0:5.14.0-687.47.1.el9_8 or higher.
This issue was patched in RLSA-2026:67150.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libperf package and not the libperf package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:9 relevant fixed versions and status.

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

wifi: mac80211: fix MLE defragmentation

If either reconf or EPCS multi-link element (MLE) is contained in a non-transmitted profile, the defragmentation routine is called with a pointer to the defragmented copy, but the original elements.

This is incorrect for two reasons:

  • if the original defragmentation was needed, it will not find the correct data
  • if the original frame is at a higher address, the parsing will potentially overrun the heap data (though given the layout of the buffers, only into the new defragmentation buffer, and then it has to stop and fail once that's filled with copied data.

Fix it by tracking the container along with the pointer and in doing so also unify the two almost identical defragmentation routines.

CVSS Base Scores

version 3.1