Out-of-bounds Read Affecting rv package, versions <0:5.14.0-687.47.1.el9_8


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.22% (13th percentile)

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  • Snyk IDSNYK-ROCKY9-RV-19850993
  • published16 Sept 2026
  • disclosed24 Jul 2026

Introduced: 24 Jul 2026

CVE-2026-64255  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:9 rv 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 rv package and not the rv 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: iwlwifi: mld: validate sta_mask before ffs() in BA session handlers

Three BA session handlers use ffs(ba_data->sta_mask) - 1 to derive a station ID without checking that sta_mask is non-zero. When sta_mask is zero, ffs() returns 0 and the subtraction wraps to 0xFFFFFFFF, causing an out-of-bounds access on fw_id_to_link_sta[].

Add WARN_ON_ONCE(!ba_data->sta_mask) guards before each ffs() call, consistent with the existing check in iwl_mld_ampdu_rx_start().

CVSS Base Scores

version 3.1