CVE-2024-46816

Kernel memory overrun via excess display links

Published Sep 27, 2024 · Updated Aug 5, 2026

Out-of-bounds access in affected Linux kernels allows local users to trigger a memory overrun during AMD display initialization. The amdgpu_dm_initialize_drm_device function loops over a reported link count that can exceed the dc->links array's max_links capacity. Reachability requires the AMD display driver and an excessive link count; published sources document neither a practical trigger nor the resulting runtime behavior.

CVSS severity7.8
High
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds access in affected Linux kernels allows local users to trigger a memory overrun during AMD display initialization. The amdgpu_dm_initialize_drm_device function loops over a reported link count that can exceed the dc->links array's max_links capacity. Reachability requires the AMD display driver and an excessive link count; published sources document neither a practical trigger nor the resulting runtime behavior.

The record

CVE
CVE-2024-46816
Published
Sep 27, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 27, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.15
  2. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <13080d052c995aee14695a5b740c245121eb2bcc
  3. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <36c39a8dcce210649f2f45f252abaa09fcc1ae87
  4. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <c84632096722fd31251f0957fafc9e90d9a247fd
  5. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <cf8b16857db702ceb8d52f9219a4613363e2b1cf
  6. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e2411b6abf6e5d6c33d0450846673cdf536f0ba4
  7. Affected versionversion=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e3cd0d8362de47f613bfdf315b3f3a9ab71e66bf

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.15; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <13080d052c995aee14695a5b740c245121eb2bcc; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <36c39a8dcce210649f2f45f252abaa09fcc1ae87; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <c84632096722fd31251f0957fafc9e90d9a247fd; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <cf8b16857db702ceb8d52f9219a4613363e2b1cf; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e2411b6abf6e5d6c33d0450846673cdf536f0ba4; version=4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c <e3cd0d8362de47f613bfdf315b3f3a9ab71e66bf

Published CVSS scores

7.8Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.

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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

No sourced classifications are available.

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

See the directory against your own environment.

Your stack

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