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CVE-2026-80546 s390/zcrypt: Improve CCA CPRB length and overflow checks

🗓️ 26 Aug 2026 14:37:17Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

Integer overflow and missing size validation in Linux kernel s390/zcrypt CCA CPRB handling.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-80546
26 Aug 202614:37
cve
euvd
EUVD
EUVD-2026-66461
26 Aug 202614:37
euvd
nvd
NVD
CVE-2026-80546
26 Aug 202615:17
nvd
osv
OSV
DEBIAN-CVE-2026-80546
26 Aug 202620:47
osv
ptsecurity
Positive Technologies
PT-2026-82162
26 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/s390/crypto/zcrypt_msgtype6.c"
    ],
    "versions": [
      {
        "version": "e2c6d91eb8b1533753755f07803e47eceed263d0",
        "lessThan": "50fe5133dcb46449daf2435fa705264364411129",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e2c6d91eb8b1533753755f07803e47eceed263d0",
        "lessThan": "35ac6754ba6da45fd193f5ce3f665f7490b830d5",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/s390/crypto/zcrypt_msgtype6.c"
    ],
    "versions": [
      {
        "version": "7.1",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "7.1",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.10",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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