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MEDIUM

CVE-2024-36922

CVSS v3

5.5

MEDIUM

EPSS Score

0.3 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • bpftoolAlmaLinux:9all versions · fixed in 7.3.0-427.31.1.el9_4
  • kernelAlmaLinux:9all versions · fixed in 5.14.0-427.31.1.el9_4and 60 other packages
  • kernelAlmaLinux:8all versions · fixed in 4.18.0-553.22.1.el8_10and 24 other packages

Vendor advisories

  • CVE-2024-36922 Red Hat Product Security634 products fixed · 38 known affected

    kernel: wifi: iwlwifi: read txq->read_ptr under lock

    kernel-rt as a component of Red Hat Enterprise Linux 8 · kernel-rt-core as a component of Red Hat Enterprise Linux 8 · kernel-rt-debug as a component of Red Hat Enterprise Linux 8

  • SSA-784472 Siemens ProductCERT1 known affected

    SSA-784472: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.1.1

    SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

  • RHSA-2024:7000 Red Hat Product Security120 products fixed

    Red Hat Security Advisory: kernel security update

  • RHSA-2024:5363 Red Hat Product Security279 products fixed

    Red Hat Security Advisory: kernel security update

  • RHSA-2024:5364 Red Hat Product Security201 products fixed

    Red Hat Security Advisory: kernel security update

  • RHSA-2024:5365 Red Hat Product Security34 products fixed

    Red Hat Security Advisory: kernel-rt security update

Full record on NVD

Description

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.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2024-05-30
Last Modified
2025-10-01

Frequently asked questions

What is CVE-2024-36922?

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.

Is CVE-2024-36922 actively exploited?

Active exploitation of CVE-2024-36922 has not been confirmed. Its EPSS score was 0.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2024-36922?

CVE-2024-36922 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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