CVE-2024-40924

Local kernel panic via stale DPT mapping

Published Jul 12, 2024 · Updated Aug 5, 2026

Denial of service in affected Linux kernel versions allows local users to trigger a kernel panic through the Intel i915 DPT path. A shrinkable DPT object can be reclaimed while its framebuffer remains on vm->bound_list, after which PTE rewriting dereferences a stale CPU mapping. Reachability requires local low-privileged access and an Intel graphics configuration using the i915 DPT code; the demonstrated consequence is a host crash.

CVSS severity5.5
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in affected Linux kernel versions allows local users to trigger a kernel panic through the Intel i915 DPT path. A shrinkable DPT object can be reclaimed while its framebuffer remains on vm->bound_list, after which PTE rewriting dereferences a stale CPU mapping. Reachability requires local low-privileged access and an Intel graphics configuration using the i915 DPT code; the demonstrated consequence is a host crash.

The record

CVE
CVE-2024-40924
Published
Jul 12, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0dc987b699ce4266450d407d6d79d41eab88c5d0 <327280149066f0e5f2e50356b5823f76dabfe86e
  2. Affected versionversion=0dc987b699ce4266450d407d6d79d41eab88c5d0 <43e2b37e2ab660c3565d4cff27922bc70e79c3f1
  3. Affected versionversion=0dc987b699ce4266450d407d6d79d41eab88c5d0 <7a9883be3b98673333eec65c4a21cc18e60292eb
  4. Affected versionversion=0dc987b699ce4266450d407d6d79d41eab88c5d0 <a2552020fb714ff357182c3c179abfac2289f84d
  5. Affected versionversion=6.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0dc987b699ce4266450d407d6d79d41eab88c5d0 <327280149066f0e5f2e50356b5823f76dabfe86e; version=0dc987b699ce4266450d407d6d79d41eab88c5d0 <43e2b37e2ab660c3565d4cff27922bc70e79c3f1; version=0dc987b699ce4266450d407d6d79d41eab88c5d0 <7a9883be3b98673333eec65c4a21cc18e60292eb; version=0dc987b699ce4266450d407d6d79d41eab88c5d0 <a2552020fb714ff357182c3c179abfac2289f84d; version=6.0

Published CVSS scores

5.5CanonicalCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.4OracleCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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