VulnerabilityPublished 14 Feb 2026Updated 19 Oct 2026

CVE-2026-23128: Linux kernel · arm64: Set __nocfi on swsusp_arch_resume()

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in e2f8216ca2d8e61a23cb6ec355616339667e0ba6 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

EPSS

0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-06-10.

Patch

Available – fixed in e2f8216ca2d8e61a23cb6ec355616339667e0ba6, 9773a886f26766a8db92d4b342b620a82c2de7dd, 8557bdd9af8dd04911fba56ff92b17842b0b5c7f +2

Exploitation evidence

Disclosed: evidence found.
CVE published 14 Feb 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 89245600941e4e0f87d77f60ee269b5e61ef4e49, < e2f8216ca2d8e61a23cb6ec355616339667e0ba6	Fixed in e2f8216ca2d8e61a23cb6ec355616339667e0ba6
LinuxLinux	Affected ≥ 89245600941e4e0f87d77f60ee269b5e61ef4e49, < 9773a886f26766a8db92d4b342b620a82c2de7dd	Fixed in 9773a886f26766a8db92d4b342b620a82c2de7dd
LinuxLinux	Affected ≥ 89245600941e4e0f87d77f60ee269b5e61ef4e49, < 8557bdd9af8dd04911fba56ff92b17842b0b5c7f	Fixed in 8557bdd9af8dd04911fba56ff92b17842b0b5c7f
LinuxLinux	Affected ≥ 89245600941e4e0f87d77f60ee269b5e61ef4e49, < 122b7cb80f7d468fcc2d18cf7eb320f09f310a96	Fixed in 122b7cb80f7d468fcc2d18cf7eb320f09f310a96
LinuxLinux	Affected ≥ 89245600941e4e0f87d77f60ee269b5e61ef4e49, < 6e32070d29d1a35d8f4b3c03babf6c0e5efd1d08	Fixed in 6e32070d29d1a35d8f4b3c03babf6c0e5efd1d08
LinuxLinux	Affected =6.1	Fixed in–

AI-suggested

A fix is available and has been applied in the Linux kernel source code by marking swsusp_arch_resume() as __nocfi to disable the problematic CFI check. Users should update to the fixed kernel versions to resolve this issue.

Description

A vulnerability in the Linux kernel arm64 architecture related to the swsusp_arch_resume() function has been resolved. The issue causes a data abort (DABT) on Android-based systems when resuming from hibernation due to a mismatch in Control Flow Integrity (CFI) checks. The fix disables the CFI check on swsusp_arch_resume() by marking it with __nocfi.

CWE-476NULL Pointer Dereference (opens in a new tab)
Base weaknessLikelihood of exploit: MediumCWE Top 25 (2025): #13OWASP Top 10 A10:2025: Mishandling of Exceptional Conditions (opens in a new tab)
The product dereferences a pointer that it expects to be valid but is NULL.
Implementation
For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished.
Requirements
Select a programming language that is not susceptible to these issues.
Implementation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
OWASP Cheat Sheets
Logging (opens in a new tab)
Error Handling (opens in a new tab)
OWASP ASVS 4.0.3
V11.1.7 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 26 Oct 2026, 15:46 UTC

WeaknessesCWE-476

Technical details

References

Community reviews

Related threats