Improper Resource Locking Affecting kernel-uki-virt package, versions <0:5.14.0-284.79.1.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELUKIVIRT-7730467
  • published21 Aug 2024
  • disclosed30 May 2024

Introduced: 30 May 2024

CVE-2024-36922  (opens in a new tab)
CWE-413  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-uki-virt to version 0:5.14.0-284.79.1.el9_2 or higher.
This issue was patched in RHSA-2024:5364.

NVD Description

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

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

wifi: iwlwifi: read txq->read_ptr under lock

If we read txq->read_ptr without lock, we can read the same value twice, then obtain the lock, and reclaim from there to two different places, but crucially reclaim the same entry twice, resulting in the WARN_ONCE() a little later. Fix that by reading txq->read_ptr under lock.

CVSS Scores

version 3.1