Use After Free Affecting kernel-rt-core package, versions <0:4.18.0-553.16.1.rt7.357.el8_10


Severity

Recommended
high

Based on CentOS security rating

    Threat Intelligence

    EPSS
    0.05% (17th percentile)

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  • Snyk ID SNYK-CENTOS8-KERNELRTCORE-7041046
  • published 23 May 2024
  • disclosed 21 May 2024

How to fix?

Upgrade Centos:8 kernel-rt-core to version 0:4.18.0-553.16.1.rt7.357.el8_10 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-core package and not the kernel-rt-core package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

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

wifi: ath11k: fix gtk offload status event locking

The ath11k active pdevs are protected by RCU but the gtk offload status event handling code calling ath11k_mac_get_arvif_by_vdev_id() was not marked as a read-side critical section.

Mark the code in question as an RCU read-side critical section to avoid any potential use-after-free issues.

Compile tested only.

CVSS Scores

version 3.1
Expand this section

Red Hat

5.2 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    High
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    High
Expand this section

SUSE

6.4 medium