CVE-2026-23128

Kernel crash via invalid CFI hash check

Published Feb 14, 2026 · Updated Feb 14, 2026

Denial of service in arm64 hibernation resume in Linux Kernel causes a kernel oops while restoring a saved image. swsusp_arch_resume checks a copied swsusp_arch_suspend_exit entry for a CFI hash even though that SYM_CODE entry has no hash, leading the stub to access an invalid address. The fault requires arm64 hibernation with CFI enabled and interrupts system resume; no attacker-controlled input or privilege-escalation path is reported.

CVSS severityUnavailable
Unscored
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in arm64 hibernation resume in Linux Kernel causes a kernel oops while restoring a saved image. swsusp_arch_resume checks a copied swsusp_arch_suspend_exit entry for a CFI hash even though that SYM_CODE entry has no hash, leading the stub to access an invalid address. The fault requires arm64 hibernation with CFI enabled and interrupts system resume; no attacker-controlled input or privilege-escalation path is reported.

The record

CVE
CVE-2026-23128
Published
Feb 14, 2026
Updated
Feb 14, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Feb 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 14, 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <122b7cb80f7d468fcc2d18cf7eb320f09f310a96
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <361df59ad01303008b9e091a1a6ed9bc95b1455a
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6e32070d29d1a35d8f4b3c03babf6c0e5efd1d08
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8557bdd9af8dd04911fba56ff92b17842b0b5c7f
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9773a886f26766a8db92d4b342b620a82c2de7dd
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e2f8216ca2d8e61a23cb6ec355616339667e0ba6

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linux Kernelversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <122b7cb80f7d468fcc2d18cf7eb320f09f310a96; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <361df59ad01303008b9e091a1a6ed9bc95b1455a; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6e32070d29d1a35d8f4b3c03babf6c0e5efd1d08; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8557bdd9af8dd04911fba56ff92b17842b0b5c7f; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9773a886f26766a8db92d4b342b620a82c2de7dd; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e2f8216ca2d8e61a23cb6ec355616339667e0ba6

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

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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