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selinux: always fill AVC decision in avc_has_perm_noaudit()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: selinux: always fill AVC decision in avc_has_perm_noaudit() avc_has_perm_noaudit() is documented to return a copy of the access decision in @avd, but its early return for an empty requested permission set leaves the buffer untouched. All callers pass an uninitialized stack variable and afterwards feed it to avc_audit(), and the inode hook even stores it in the per-task decision cache. Fill in a deny-all, audit-all decision, similar to avd_init(), so every caller receives a defined value at no cost on the hot path.

Announced Source revision 1
Original source ↗

CVE-2026-98413

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-98413

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "e6f2f381e4015386a656a369835f949c26000e6b",
        "lessThan": "c781e737aa0de95289b1774d5fd29388895737a9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e6f2f381e4015386a656a369835f949c26000e6b",
        "lessThan": "e308c5acfe283a66627fc407065626df4ab753ec",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e6f2f381e4015386a656a369835f949c26000e6b",
        "lessThan": "f9da796fa238f8e4414ee8481e6c979759a3d563",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e6f2f381e4015386a656a369835f949c26000e6b",
        "lessThan": "e77461af13eab5c9a953cc52ec8432cc941d61e2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e6f2f381e4015386a656a369835f949c26000e6b",
        "lessThan": "5a6f9a872b4ff68877caf998bee352153b7154bc",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e6f2f381e4015386a656a369835f949c26000e6b",
        "lessThan": "24e00850bcff46b984f4c44b92e5499450fcfb5a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e6f2f381e4015386a656a369835f949c26000e6b",
        "lessThan": "835133337c2ce200db56f62d018c79087dee2603",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e6f2f381e4015386a656a369835f949c26000e6b",
        "lessThan": "8861db305103107199b1426f25fde1fb6d465583",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "security/selinux/avc.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.1"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.1",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.54",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.8",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "security/selinux/avc.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98413

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38478 · Revision 1
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Publisher date
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