CVE-2025-68233

Kernel resource leak via unreleased PID reference

Published Dec 16, 2025 · Updated Dec 16, 2025

Resource leak in Linux kernel 6.0 and affected later branches allows local users to retain PID references through Tegra DRM operations. The drm/tegra allocation path calls get_task_pid(), then passes that reference to host1x_memory_context_alloc(), which does not assume ownership, without a matching put_pid(). Reachability requires Tegra host1x memory contexts with IOMMU support; repeated allocations retain PID references and consume kernel resources.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource leak in Linux kernel 6.0 and affected later branches allows local users to retain PID references through Tegra DRM operations. The drm/tegra allocation path calls get_task_pid(), then passes that reference to host1x_memory_context_alloc(), which does not assume ownership, without a matching put_pid(). Reachability requires Tegra host1x memory contexts with IOMMU support; repeated allocations retain PID references and consume kernel resources.

The record

CVE
CVE-2025-68233
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record 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=6.0
  2. Affected versionversion=e09db97889ec647ad373f7a7422c83099c6120c5 <27ea5c2c75c3419a9a019240ca44b9256f628df1
  3. Affected versionversion=e09db97889ec647ad373f7a7422c83099c6120c5 <2e78580e6e7deac6556236ef96db5bbf7b46857e
  4. Affected versionversion=e09db97889ec647ad373f7a7422c83099c6120c5 <6b572e5154af08ee13f8d2673e86f83bc5ff86cd
  5. Affected versionversion=e09db97889ec647ad373f7a7422c83099c6120c5 <6cbab9f0da72b4dc3c3f9161197aa3b9daa1fa3a
  6. Affected versionversion=e09db97889ec647ad373f7a7422c83099c6120c5 <cbf2cbdb0733d7974dab296ffba0e7ae9b6524e5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.0; version=e09db97889ec647ad373f7a7422c83099c6120c5 <27ea5c2c75c3419a9a019240ca44b9256f628df1; version=e09db97889ec647ad373f7a7422c83099c6120c5 <2e78580e6e7deac6556236ef96db5bbf7b46857e; version=e09db97889ec647ad373f7a7422c83099c6120c5 <6b572e5154af08ee13f8d2673e86f83bc5ff86cd; version=e09db97889ec647ad373f7a7422c83099c6120c5 <6cbab9f0da72b4dc3c3f9161197aa3b9daa1fa3a; version=e09db97889ec647ad373f7a7422c83099c6120c5 <cbf2cbdb0733d7974dab296ffba0e7ae9b6524e5

Published CVSS scores

No CVSS assessment is available in this record.

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
PrivilegesUnavailable
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

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Your stack

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