CVEvulnerability
CVE-2026-80709
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-28
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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/1223477ca88e2396eca440919d0ca8754df79bd5 git.kernel.org
- https://git.kernel.org/stable/c/13e53d6ae1c3b2ff1be75b9ef09be26f4ec3ce15 git.kernel.org
- https://git.kernel.org/stable/c/4589f742718d0256ea6dd1f5a78be6e689bdb8aa git.kernel.org
- https://git.kernel.org/stable/c/672b12940e3f1336dfed5287412a71500adf2a76 git.kernel.org
- https://git.kernel.org/stable/c/983279d7f86ade73db86f886e09172dd567031b5 git.kernel.org
- https://git.kernel.org/stable/c/b505dcc8307d64468b463dfad45a03bf865c637e git.kernel.org