CVE-2025-68253

System hang via no-lock page-owner spin

Published Dec 16, 2025 · Updated Dec 16, 2025

Infinite-loop flaw in the Linux kernel 6.15 through 6.17.5 allows attackers to hang the system during page-owner allocation accounting. add_stack_record_to_list() proceeds with stack-record allocation when the caller's GFP flags prohibit spinning, so a no-lock allocation path can wait indefinitely. Reachability requires page-owner accounting and a no-lock allocation path; no confidentiality or integrity impact is reported.

CVSS severityUnavailable
Unscored
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Infinite-loop flaw in the Linux kernel 6.15 through 6.17.5 allows attackers to hang the system during page-owner allocation accounting. add_stack_record_to_list() proceeds with stack-record allocation when the caller's GFP flags prohibit spinning, so a no-lock allocation path can wait indefinitely. Reachability requires page-owner accounting and a no-lock allocation path; no confidentiality or integrity impact is reported.

The record

CVE
CVE-2025-68253
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
Unavailable
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=6.15
  2. Affected versionversion=97769a53f117e2f33864c587d85992ee35194ecf <504174133453e3af73e626e328603d7eb5986f34
  3. Affected versionversion=97769a53f117e2f33864c587d85992ee35194ecf <c83aab85e18103a6dc066b4939e2c92a02bb1b05

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=6.15; version=97769a53f117e2f33864c587d85992ee35194ecf <504174133453e3af73e626e328603d7eb5986f34; version=97769a53f117e2f33864c587d85992ee35194ecf <c83aab85e18103a6dc066b4939e2c92a02bb1b05

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.

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Endpoint Denial of Service: Application or System Exploitation

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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