CVE-2024-26653

Kernel memory corruption via LJCA double free

Published Apr 1, 2024 · Updated May 11, 2026

Double free in the Linux kernel LJCA USB driver 6.7 through 6.8.2 allows local users to corrupt kernel memory during device setup. The ljca_auxdev_release callback frees platform_data after auxiliary_device_uninit, and callers then free the same allocation again. Reachability requires LJCA auxiliary-device creation to encounter an add failure; the record does not establish attacker control of that failure.

CVSS severity7.8
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in the Linux kernel LJCA USB driver 6.7 through 6.8.2 allows local users to corrupt kernel memory during device setup. The ljca_auxdev_release callback frees platform_data after auxiliary_device_uninit, and callers then free the same allocation again. Reachability requires LJCA auxiliary-device creation to encounter an add failure; the record does not establish attacker control of that failure.

The record

CVE
CVE-2024-26653
Published
Apr 1, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-415
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 1, 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=6.7
  2. Affected versionversion=acd6199f195d6de814ac4090ce0864a613b1580e <420babea4f1881a7c4ea22a8e218b8c6895d3f21
  3. Affected versionversion=acd6199f195d6de814ac4090ce0864a613b1580e <7c9631969287a5366bc8e39cd5abff154b35fb80
  4. Affected versionversion=acd6199f195d6de814ac4090ce0864a613b1580e <8a9f653cc852677003c23ee8075e3ed8fb4743c9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=acd6199f195d6de814ac4090ce0864a613b1580e <420babea4f1881a7c4ea22a8e218b8c6895d3f21; version=acd6199f195d6de814ac4090ce0864a613b1580e <7c9631969287a5366bc8e39cd5abff154b35fb80; version=acd6199f195d6de814ac4090ce0864a613b1580e <8a9f653cc852677003c23ee8075e3ed8fb4743c9

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-415Double Free

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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