CVE-2026-80709s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from cfd68b33094e1a92249850ff3c3c92ae9112a541 before 4589f742718d0256ea6dd1f5a78be6e689bdb8aa; from cfd68b33094e1a92249850ff3c3c92ae9112a541 before b505dcc8307d64468b463dfad45a03bf865c637e; from cfd68b33094e1a92249850ff3c3c92ae9112a541 before 13e53d6ae1c3b2ff1be75b9ef09be26f4ec3ce15; from cfd68b33094e1a92249850ff3c3c92ae9112a541 before 672b12940e3f1336dfed5287412a71500adf2a76; from cfd68b33094e1a92249850ff3c3c92ae9112a541 before 1223477ca88e2396eca440919d0ca8754df79bd5; from cfd68b33094e1a92249850ff3c3c92ae9112a541 before 983279d7f86ade73db86f886e09172dd567031b5 | CNA record |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.