s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 7 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
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.
References
- https://git.kernel.org/stable/c/4589f742718d0256ea6dd1f5a78be6e689bdb8aa
- https://git.kernel.org/stable/c/b505dcc8307d64468b463dfad45a03bf865c637e
- https://git.kernel.org/stable/c/13e53d6ae1c3b2ff1be75b9ef09be26f4ec3ce15
- https://git.kernel.org/stable/c/672b12940e3f1336dfed5287412a71500adf2a76
- https://git.kernel.org/stable/c/1223477ca88e2396eca440919d0ca8754df79bd5
- https://git.kernel.org/stable/c/983279d7f86ade73db86f886e09172dd567031b5
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-67444
- GCVE · GCVE-0-2026-80709
CERT-FR advisories
- CERTFR-2026-AVI-1232 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1163 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected cfd68b33094e1a92249850ff3c3c92ae9112a541 < 4589f742718d0256ea6dd1f5a78be6e689bdb8aa ; affected cfd68b33094e1a92249850ff3c3c92ae9112a541 < b505dcc8307d64468b463dfad45a03bf865c637e ; affected cfd68b33094e1a92249850ff3c3c92ae9112a541 < 13e53d6ae1c3b2ff1be75b9ef09be26f4ec3ce15 ; affected cfd68b33094e1a92249850ff3c3c92ae9112a541 < 672b12940e3f1336dfed5287412a71500adf2a76 ; affected cfd68b33094e1a92249850ff3c3c92ae9112a541 < 1223477ca88e2396eca440919d0ca8754df79bd5 ; affected cfd68b33094e1a92249850ff3c3c92ae9112a541 < 983279d7f86ade73db86f886e09172dd567031b5 |
| Linux · Linux | affected 5.18 ; unaffected 0 < 5.18 ; unaffected 6.1.183 ≤ 6.1.* ; unaffected 6.6.151 ≤ 6.6.* ; unaffected 6.12.103 ≤ 6.12.* ; unaffected 6.18.44 ≤ 6.18.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |