CVE-2026-53367 (GCVE-0-2026-53367)
Vulnerability from cvelistv5
Published
2026-07-19 09:10
Modified
2026-07-19 09:10
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: selinux: fix avdcache auditing The per-task avdcache was incorrectly saving and reusing the audited vector computed by avc_audit_required() rather than recomputing based on the currently requested permissions and distinguishing the denied versus allowed cases. As a result, some permission checks were not being audited, e.g. directory write checks after a previously cached directory search check. [PM: line wrap tweaks]
References
Impacted products
Vendor Product Version
Linux Linux Version: dde3a5d0f4dce1d1a6095e6b8eeb59b75d28fb3b
Version: dde3a5d0f4dce1d1a6095e6b8eeb59b75d28fb3b
Version: dde3a5d0f4dce1d1a6095e6b8eeb59b75d28fb3b
Version: 21879b76831fab52f6a615c531f86412c8d3c827
Version: 6.17.10   ≤
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "security/selinux/hooks.c",
            "security/selinux/include/objsec.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e3e722ea88e051ae5361dc540c01ba18f87b5ffd",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "6.18",
              "status": "affected",
              "version": "6.17.10",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
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            "security/selinux/include/objsec.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.18"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
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              "version": "7.0.7",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.30",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1",
                  "versionStartIncluding": "6.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.17.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: fix avdcache auditing\n\nThe per-task avdcache was incorrectly saving and reusing the\naudited vector computed by avc_audit_required() rather than\nrecomputing based on the currently requested permissions and\ndistinguishing the denied versus allowed cases. As a result,\nsome permission checks were not being audited, e.g.\ndirectory write checks after a previously cached directory\nsearch check.\n\n[PM: line wrap tweaks]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-19T09:10:28.879Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e3e722ea88e051ae5361dc540c01ba18f87b5ffd"
        },
        {
          "url": "https://git.kernel.org/stable/c/bce6a32bc888dfebb6a7d4dee454228b71ed8369"
        },
        {
          "url": "https://git.kernel.org/stable/c/f92d542577db878acfd21cc18dab23d03023b217"
        }
      ],
      "title": "selinux: fix avdcache auditing",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53367",
    "datePublished": "2026-07-19T09:10:28.879Z",
    "dateReserved": "2026-06-09T07:44:35.400Z",
    "dateUpdated": "2026-07-19T09:10:28.879Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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