In the Linux kernel, the following vulnerability has been resolved:

s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs

There is a wrong upper limit check for the domain value when an EP11
CPRB is processed for sending to a crypto card. This check is only
active on custom device nodes but may lead to access heap memory
behind perms->adm when an administrative CPRB is sent.
Add correct limit (AP_DOMAINS = 256) checking to fix this.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
cfd68b33094e1a92249850ff3c3c92ae9112a541 affected < 4589f742718d0256ea6dd1f5a78be6e689bdb8aa
cfd68b33094e1a92249850ff3c3c92ae9112a541 affected < b505dcc8307d64468b463dfad45a03bf865c637e
cfd68b33094e1a92249850ff3c3c92ae9112a541 affected < 13e53d6ae1c3b2ff1be75b9ef09be26f4ec3ce15
cfd68b33094e1a92249850ff3c3c92ae9112a541 affected < 672b12940e3f1336dfed5287412a71500adf2a76
cfd68b33094e1a92249850ff3c3c92ae9112a541 affected < 1223477ca88e2396eca440919d0ca8754df79bd5
cfd68b33094e1a92249850ff3c3c92ae9112a541 affected < 983279d7f86ade73db86f886e09172dd567031b5
Linux Linux affected
Version Status Constraints
5.18 affected —
0 unaffected < 5.18
6.1.183 unaffected ≤ 6.1.*
6.6.151 unaffected ≤ 6.6.*
6.12.103 unaffected ≤ 6.12.*
6.18.44 unaffected ≤ 6.18.*
7.1.8 unaffected ≤ 7.1.*
7.2 unaffected ≤ *

No data.

No data.

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/1223477ca88e2396eca440919d0ca8754df79bd5 cve-icon cve-icon
https://git.kernel.org/stable/c/13e53d6ae1c3b2ff1be75b9ef09be26f4ec3ce15 cve-icon cve-icon
https://git.kernel.org/stable/c/4589f742718d0256ea6dd1f5a78be6e689bdb8aa cve-icon cve-icon
https://git.kernel.org/stable/c/672b12940e3f1336dfed5287412a71500adf2a76 cve-icon cve-icon
https://git.kernel.org/stable/c/983279d7f86ade73db86f886e09172dd567031b5 cve-icon cve-icon
https://git.kernel.org/stable/c/b505dcc8307d64468b463dfad45a03bf865c637e cve-icon cve-icon
History

Fri, 28 Aug 2026 07:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs There is a wrong upper limit check for the domain value when an EP11 CPRB is processed for sending to a crypto card. This check is only active on custom device nodes but may lead to access heap memory behind perms->adm when an administrative CPRB is sent. Add correct limit (AP_DOMAINS = 256) checking to fix this.
Title s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-28T06:53:09.439Z

Reserved: 2026-08-26T14:34:25.787Z

Link: CVE-2026-80709

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-28T08:16:56.523

Modified: 2026-08-28T08:16:56.523

Link: CVE-2026-80709

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.