CVE-2024-26932

Kernel memory corruption via duplicate PD capability free

Published May 1, 2024 · Updated May 11, 2026

Double free in the Linux kernel USB Type-C TCPM subsystem in 6.8 allows local users to corrupt kernel memory during port registration. The teardown path frees the same PD capability through pd_capabilities_release() and then again explicitly in tcpm_port_unregister_pd(). The gate is local low-privileged access plus a TCPM-capable Type-C port path; the observed failure is kernel-memory corruption detected by KASAN.

CVSS severity7.8
High
EPSS probability0.22%
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 USB Type-C TCPM subsystem in 6.8 allows local users to corrupt kernel memory during port registration. The teardown path frees the same PD capability through pd_capabilities_release() and then again explicitly in tcpm_port_unregister_pd(). The gate is local low-privileged access plus a TCPM-capable Type-C port path; the observed failure is kernel-memory corruption detected by KASAN.

The record

CVE
CVE-2024-26932
Published
May 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. May 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=6.8
  2. Affected versionversion=cd099cde4ed264403b434d8344994f97ac2a4349 <242e425ed580b2f4dbcb86c8fc03a410a4084a69
  3. Affected versionversion=cd099cde4ed264403b434d8344994f97ac2a4349 <b63f90487bdf93a4223ce7853d14717e9d452856

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.8; version=cd099cde4ed264403b434d8344994f97ac2a4349 <242e425ed580b2f4dbcb86c8fc03a410a4084a69; version=cd099cde4ed264403b434d8344994f97ac2a4349 <b63f90487bdf93a4223ce7853d14717e9d452856
The Linux Kernel Organization · Linux Kernelversion=6.8; version=cd099cde4ed2

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.

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

CWE-415Double Free

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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