CVE-2026-46150 (GCVE-0-2026-46150)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-10-15 01:20
VLAI
Title
fanotify: fix false positive on permission events
Summary
In the Linux kernel, the following vulnerability has been resolved: fanotify: fix false positive on permission events fsnotify_get_mark_safe() may return false for a mark on an unrelated group, which results in bypassing the permission check. Fix by skipping over detached marks that are not in the current group.
Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6667 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < a24765332e129c1916d5a6615418b75599b8fcdc (git)
Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < 4a7611ad653785fcdea5ff5f4441e2b7d05b7f11 (git)
Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < 04bb66be92f48ed13c3faf1139d892df228789bc (git)
Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < 895ebbedf88318607c24acc0f591c74b165e1d0a (git)
Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < f130790f1acc8399f32652846c875a251efd040f (git)
Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < 7baa02b0ae9d17ec5f08836d8ea88ce1927d0678 (git)
Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < b7b24b28c8cd55844cab908f4f39dded638d5538 (git)
Affected: abc77577a669f424c5d0c185b9994f2621c52aa4 , < 7746e3bd4cc19b5092e00d32d676e329bfcb6900 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.88 , ≤ 6.12.* (semver)
Unaffected: 6.18.30 , ≤ 6.18.* (semver)
Unaffected: 7.0.7 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
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        ],
        "id": "CVE-2026-46150",
        "lastModified": "2026-10-15T02:19:46.767",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "NONE",
                "baseScore": 7.1,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 5.2,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            }
          ]
        },
        "published": "2026-05-28T10:16:30.630",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/04bb66be92f48ed13c3faf1139d892df228789bc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4a7611ad653785fcdea5ff5f4441e2b7d05b7f11"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7746e3bd4cc19b5092e00d32d676e329bfcb6900"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/7baa02b0ae9d17ec5f08836d8ea88ce1927d0678"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/895ebbedf88318607c24acc0f591c74b165e1d0a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/a24765332e129c1916d5a6615418b75599b8fcdc"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/b7b24b28c8cd55844cab908f4f39dded638d5538"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f130790f1acc8399f32652846c875a251efd040f"
          },
          {
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
            "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-23T03:34:13+00:00",
      "cve": "CVE-2026-46150",
      "id": "CVE-2026-46150",
      "initial_release_date": "2026-05-28T00:00:00+00:00",
      "product_status:fixed": "2227",
      "product_status:known_affected": "36",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: fanotify: fix false positive on permission events",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46150.json",
      "version": "3"
    }
  }
}



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