Unknown

CVE-2026-97592 — s390/crypto: Fix missing scrub of temp buffers with AES ctr and gcm algorithm

In the Linux kernel, the following vulnerability has been resolved: s390/crypto: Fix missing scrub of temp buffers with AES ctr and gcm algorithm In function ctr_aes_crypt() there is a buffer used to process remaining bytes < AES_BLOCK_SIZE. This buffer was not scrubbed and thus could lead to expose of unwanted data. When the buffer is used explicitly scrub it at the end of the code block to avoid exposure of maybe sensitive data. In a similar way the function gcm_aes_crypt() hat an error path where the CPACF param block was not scrubbed. Instead of return early now these error paths go to end of function where explicit scrubbing is done. Similar with the buffers which are part of the gcm_sg_walk structs from the variables gw_in and gw_out.

Published Sep 25, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+2

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.21%

ahead of 11% of scored CVEs · Oct 16, 2026

Affects

Linux

CVSS base

—

Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ cd51e26a3b89706beec64f2d8296cfb1c34e0c79 and < 538f00558db9a66aeff20c36f43692c178a0e0eb≥ a7f580cdb42ec3d53bbb7c4e4335a98423703285 and < 6ab772d675a885c3119bf0e79ea9e84756d7657a≥ dbc9a791a70ea47be9f2acf251700fe254a2ab23 and < e17b85eb8cee90a1200fa5e7806db7ffa08a0608≥ d68ac38895e84446848b7647ab9458d54cacba3e and < 991c875310254a13b3a637bb279379c8c66e842d≥ d07f951903fa9922c375b8ab1ce81b18a0034e3b and < 11eca05d2062032e1f07d56be58ed0b99f4b1d63≥ d07f951903fa9922c375b8ab1ce81b18a0034e3b and < 8b90a47c4fba27bb4f2f086611742493629e9696≥ d07f951903fa9922c375b8ab1ce81b18a0034e3b and < a83488cecb35f924b7541306ed84893bb9906196≥ d07f951903fa9922c375b8ab1ce81b18a0034e3b and < 8b7c3b6914f19caf648d05726a86af6326d3c2c6 and 7 more version e78f1a43e72daf77705ad5b9946de66fc708b874≥ 5.10.210 and < 5.10.271≥ 5.15.149 and < 5.15.222≥ 6.1.76 and < 6.1.189≥ 6.6.15 and < 6.6.158≥ 6.7.3 and < 6.8version 6.8	Vulnerable	CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 15, 2026 → Oct 16, 2026 · 2 reading(s) · max 0.21%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Not enough vector or weakness data: use the affected application’s logs as a starting point.

application logs

Timeline

What happened to this CVE, newest first.

2026
Record published
Oct 15, 2026
Affected products added · linux/linux
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Received
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Sep 25, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

8 on the record

git.kernel.org/stable/c/8b90a47c4fba27bb4f2f086611742493629e9696
NIST National Vulnerability Database
git.kernel.org/stable/c/6ab772d675a885c3119bf0e79ea9e84756d7657a
NIST National Vulnerability Database
git.kernel.org/stable/c/e17b85eb8cee90a1200fa5e7806db7ffa08a0608
NIST National Vulnerability Database
git.kernel.org/stable/c/8b7c3b6914f19caf648d05726a86af6326d3c2c6
NIST National Vulnerability Database
git.kernel.org/stable/c/11eca05d2062032e1f07d56be58ed0b99f4b1d63
NIST National Vulnerability Database
git.kernel.org/stable/c/a83488cecb35f924b7541306ed84893bb9906196
NIST National Vulnerability Database
git.kernel.org/stable/c/991c875310254a13b3a637bb279379c8c66e842d
NIST National Vulnerability Database
git.kernel.org/stable/c/538f00558db9a66aeff20c36f43692c178a0e0eb
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

Critical CVE-2026-99999 ipv4: validate checksum_start before completing checksum 1d
Unknown CVE-2026-98432 ipv4: free inet_opt and ireq_opt after an RCU grace period 1d
Unknown CVE-2026-98430 RDMA/efa: Keep admin queues alive while IRQ is registered 2d
Unknown CVE-2026-98424 wifi: cfg80211: undo netns switch if renaming the wiphy fails 2d
Unknown CVE-2026-98425 wifi: mac80211: don't warn when an IBSS has no channel to scan 2d
Unknown CVE-2026-98426 wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path 2d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CVSS score published by NVD, the CNA, CISA or GitHub so far.
No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-97592 is "s390/crypto: Fix missing scrub of temp buffers with AES ctr and gcm algorithm", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.21% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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