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CVE-2024-36922

HIGH 8.8 ALL-YEARS

Published 2024-05-30 · Last modified 2026-10-15 · Linux · NVD: Modified

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.

ELEVATED IMPACT

Severe if exploited (CVSS 8.8), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 28th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

8.8CVSS 3.1 · HIGH · CNA

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ⚠Access: Must sit on the same / adjacent network
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Linux Siemens

Products Linux Simatic S7 1500 Tm Mfp Gnu/Linux Subsystem Linux Kernel

Weakness (CWE)

Not classified.

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References and research data (JSON)

Vendor product assessments

Showing 32 of 722 vendor product statements; 690 omitted. Read the full vendor advisory.

  • bpftool-debuginfo-0:7.0.0-284.79.1.el9_2.aarch64 as a component of Red Hat Enterprise Linux AppStream EUS (v.9.2) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2?arch=aarch64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • bpftool-debuginfo-0:7.3.0-427.31.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 9) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_4?arch=ppc64le

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • python3-perf-debuginfo-0:5.14.0-427.31.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 9) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_4?arch=x86_64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-doc-0:4.18.0-553.22.1.el8_10.noarch as a component of Red Hat Enterprise Linux BaseOS (v. 8) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_10?arch=noarch

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-64k-debuginfo-0:5.14.0-284.79.1.el9_2.aarch64 as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2?arch=aarch64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-tools-libs-0:5.14.0-284.79.1.el9_2.ppc64le as a component of Red Hat Enterprise Linux BaseOS EUS (v.9.2) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2?arch=ppc64le

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-debug-modules-0:5.14.0-427.31.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_4?arch=ppc64le

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • python3-perf-0:5.14.0-427.31.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 9) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_4?arch=ppc64le

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • python3-perf-debuginfo-0:5.14.0-284.79.1.el9_2.s390x as a component of Red Hat CodeReady Linux Builder EUS (v.9.2) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2?arch=s390x

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt-modules-core-0:5.14.0-284.79.1.rt14.364.el9_2.x86_64 as a component of Red Hat Enterprise Linux Real Time for NFV EUS (v.9.2) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_2?arch=x86_64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • python3-perf-debuginfo-0:5.14.0-427.31.1.el9_4.x86_64 as a component of Red Hat Enterprise Linux RT (v. 9) · fixed

    Vendor assessment for this product only.

    pkg:rpm/redhat/[email protected]_4?arch=x86_64

    • vendor fix: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect. Vendor guidance
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt-debug-devel as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt-debug-devel

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt-debug-modules-extra as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt-debug-modules-extra

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt-modules as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt-modules

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt.src as a component of Red Hat Enterprise Linux 8 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt?arch=src

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt-debug as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt-debug

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt-debug-kvm as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt-debug-kvm

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt-debug-modules-internal as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt-debug-modules-internal

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt-kvm as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt-kvm

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt-modules-extra as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt-modules-extra

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt.src as a component of Red Hat Enterprise Linux 9 · known affected

    Vendor assessment for this product only.

    pkg:rpm/redhat/kernel-rt?arch=src

    • none available: Affected
    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-headers-0:5.14.0-427.31.1.el9_4.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 9) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_4?arch=aarch64

    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-cross-headers-0:5.14.0-427.31.1.el9_4.ppc64le as a component of Red Hat Enterprise Linux CRB (v. 9) · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/[email protected]_4?arch=ppc64le

    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-debug as a component of Red Hat Enterprise Linux 6 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-debug

    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-headers as a component of Red Hat Enterprise Linux 6 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-headers

    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • bpftool as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/bpftool

    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-debug-devel as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-debug-devel

    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt

    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-rt-doc as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-rt-doc

    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • kernel-tools as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/kernel-tools

    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00
  • python-perf as a component of Red Hat Enterprise Linux 7 · known not affected

    Vendor assessment for this product only.

    Reason: vulnerable code not present

    pkg:rpm/redhat/python-perf

    Red Hat · CVE-2024-36922 · Updated 2026-08-04T22:45:41+00:00

Known Affected Software Configurations

VendorProductVersion range
LinuxLinux Kernel< 6.6.31
LinuxLinux Kernel≥ 6.7 and < 6.8.10
LinuxLinux Kernel6.9

All CVSS metrics

  • HIGH 8.8 v3.1 · CNA Primary
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • HIGH 8.8 v3.1 · NVD Secondary
    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • MEDIUM 5.5 v3.1 · NVD Primary
    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Patches & mitigations

Advisories

Technical & other

Sources: NVD · CVE.org · All sources and attribution · EPSS