CVE-2024-26817

Availability loss via process-apertures allocation overflow

Published Apr 13, 2024 · Updated May 11, 2026

Integer overflow in the Linux kernel amdkfd driver allows local users to cause an availability failure through a crafted ioctl request. In kfd_ioctl_get_process_apertures_new, args->num_of_nodes was multiplied by the aperture-structure size before kzalloc, allowing the allocation length to wrap while subsequent code used the full node count. Exploitation requires local low-privilege access and an active AMD KFD device; the documented consequence is loss of availability rather than data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in the Linux kernel amdkfd driver allows local users to cause an availability failure through a crafted ioctl request. In kfd_ioctl_get_process_apertures_new, args->num_of_nodes was multiplied by the aperture-structure size before kzalloc, allowing the allocation length to wrap while subsequent code used the full node count. Exploitation requires local low-privilege access and an active AMD KFD device; the documented consequence is loss of availability rather than data disclosure or modification.

The record

CVE
CVE-2024-26817
Published
Apr 13, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-190, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 13, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=3.19
  2. Affected versionversion=4a488a7ad71401169cecee75dc94bcce642e2c53 <0c33d11153949310d76631d8f4a4736519eacd3a
  3. Affected versionversion=4a488a7ad71401169cecee75dc94bcce642e2c53 <315eb3c2df7e4cb18e3eacfa18a53a46f2bf0ef7
  4. Affected versionversion=4a488a7ad71401169cecee75dc94bcce642e2c53 <3b0daecfeac0103aba8b293df07a0cbaf8b43f29
  5. Affected versionversion=4a488a7ad71401169cecee75dc94bcce642e2c53 <8b0564704255c6b3c6a7188e86939f754e1577c0
  6. Affected versionversion=4a488a7ad71401169cecee75dc94bcce642e2c53 <cbac7de1d9901521e78cdc34e15451df3611f2ad
  7. Affected versionversion=4a488a7ad71401169cecee75dc94bcce642e2c53 <e6721ea845fcb93a764a92bd40f1afc0d6c69751
  8. Affected versionversion=4a488a7ad71401169cecee75dc94bcce642e2c53 <e6768c6737f4c02cba193a3339f0cc2907f0b86a
  9. Affected versionversion=4a488a7ad71401169cecee75dc94bcce642e2c53 <fcbd99b3c73309107e3be71f20dff9414df64f91

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.19; version=4a488a7ad71401169cecee75dc94bcce642e2c53 <0c33d11153949310d76631d8f4a4736519eacd3a; version=4a488a7ad71401169cecee75dc94bcce642e2c53 <315eb3c2df7e4cb18e3eacfa18a53a46f2bf0ef7; version=4a488a7ad71401169cecee75dc94bcce642e2c53 <3b0daecfeac0103aba8b293df07a0cbaf8b43f29; version=4a488a7ad71401169cecee75dc94bcce642e2c53 <8b0564704255c6b3c6a7188e86939f754e1577c0; version=4a488a7ad71401169cecee75dc94bcce642e2c53 <cbac7de1d9901521e78cdc34e15451df3611f2ad; version=4a488a7ad71401169cecee75dc94bcce642e2c53 <e6721ea845fcb93a764a92bd40f1afc0d6c69751; version=4a488a7ad71401169cecee75dc94bcce642e2c53 <e6768c6737f4c02cba193a3339f0cc2907f0b86a; version=4a488a7ad71401169cecee75dc94bcce642e2c53 <fcbd99b3c73309107e3be71f20dff9414df64f91

Published CVSS scores

5.5NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5Canonical UbuntuCVSS: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

CWE-190Integer Overflow or Wraparound
T1499Endpoint Denial of Service

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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