Vulnerability-Lookup

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

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-08-05 12:30

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 54/100 over 6618 records in the last 180 days details

References

8 references

URL	Tags
https://git.kernel.org/stable/c/a24765332e129c191…
https://git.kernel.org/stable/c/4a7611ad653785fcd…
https://git.kernel.org/stable/c/04bb66be92f48ed13…
https://git.kernel.org/stable/c/895ebbedf88318607…
https://git.kernel.org/stable/c/f130790f1acc8399f…
https://git.kernel.org/stable/c/7baa02b0ae9d17ec5…
https://git.kernel.org/stable/c/b7b24b28c8cd55844…
https://git.kernel.org/stable/c/7746e3bd4cc19b509…

Impacted products

2 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
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

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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          },
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        "vulnStatus": "Analyzed",
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            ],
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            "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"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-10-09T00:09:43Z",
      "cve": "CVE-2026-46150",
      "id": "CVE-2026-46150",
      "initial_release_date": "2026-05-29T01:16:13Z",
      "product_status:known_affected": "502",
      "product_status:known_not_affected": "6",
      "product_status:recommended": "810",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46150",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46150.json",
      "version": "35"
    }
  }
}

FKIE_CVE-2026-46150

Vulnerability from fkie_nvd - Published: 2026-05-28 10:16 - Updated: 2026-06-17 10:53

Severity

7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Summary

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/04bb66be92f48ed13c3faf1139d892df228789bc	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/4a7611ad653785fcdea5ff5f4441e2b7d05b7f11	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7746e3bd4cc19b5092e00d32d676e329bfcb6900	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/7baa02b0ae9d17ec5f08836d8ea88ce1927d0678	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/895ebbedf88318607c24acc0f591c74b165e1d0a	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/a24765332e129c1916d5a6615418b75599b8fcdc	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/b7b24b28c8cd55844cab908f4f39dded638d5538	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f130790f1acc8399f32652846c875a251efd040f	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.1

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/notify/fsnotify.c",
            "fs/notify/mark.c",
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          "versions": [
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          "versions": [
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              "version": "4.12"
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              "status": "unaffected",
              "version": "0",
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              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.88",
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            },
            {
              "lessThanOrEqual": "6.18.*",
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              "status": "unaffected",
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              "lessThanOrEqual": "*",
              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
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          ]
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    }
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    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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    }
  ],
  "id": "CVE-2026-46150",
  "lastModified": "2026-06-17T10:53:09.313",
  "metrics": {
    "cvssMetricV31": [
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "NONE",
          "baseScore": 7.1,
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          "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"
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  "published": "2026-05-28T10:16:30.630",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    }
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  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-97PW-XX9J-RG9J

Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-06-01 18:31

Details

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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-46150"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:30Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfanotify: fix false positive on permission events\n\nfsnotify_get_mark_safe() may return false for a mark on an unrelated group,\nwhich results in bypassing the permission check.\n\nFix by skipping over detached marks that are not in the current group.",
  "id": "GHSA-97pw-xx9j-rg9j",
  "modified": "2026-06-01T18:31:38Z",
  "published": "2026-05-28T12:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46150"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04bb66be92f48ed13c3faf1139d892df228789bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a7611ad653785fcdea5ff5f4441e2b7d05b7f11"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7746e3bd4cc19b5092e00d32d676e329bfcb6900"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7baa02b0ae9d17ec5f08836d8ea88ce1927d0678"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/895ebbedf88318607c24acc0f591c74b165e1d0a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a24765332e129c1916d5a6615418b75599b8fcdc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7b24b28c8cd55844cab908f4f39dded638d5538"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f130790f1acc8399f32652846c875a251efd040f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

MSRC_CVE-2026-46150

Vulnerability from csaf_microsoft - Published: 2026-05-02 00:00 - Updated: 2026-06-09 14:50

Summary

fanotify: fix false positive on permission events

Scope

1 vulnerability in this advisory, including CVE-2026-46150.

CVE-2026-46150

Fixed: 1 product Known affected: 1 product

https://learn.microsoft.com/en-us/azure/azure-linux/tutoria…

Open the full advisory

OPENSUSE-SU-2026:10954-1

Vulnerability from csaf_opensuse - Published: 2026-06-04 00:00 - Updated: 2026-09-17 17:08

Summary

kernel-devel-7.0.11-1.1 on GA media

Severity

Moderate

Scope

274 vulnerabilities in this advisory, including CVE-2026-46150.

CVE-2026-46150

7.1 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Recommended: 16 products

Open the full advisory

OPENSUSE-SU-2026:21388-1

Vulnerability from csaf_opensuse - Published: 2026-07-21 08:27 - Updated: 2026-10-10 08:45

Summary

Security update for the Linux Kernel

Severity

Important

Scope

255 vulnerabilities in this advisory, including CVE-2026-46150.

CVE-2026-46150

7.1 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Recommended: 136 products

Open the full advisory

RHSA-2026:42919

Vulnerability from csaf_opensuse - Published: 2026-07-21 18:24 - Updated: 2026-10-08 22:21

Summary

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Severity

Important

Scope

12 vulnerabilities in this advisory, including CVE-2026-46150.

CVE-2026-46150

A flaw was found in the Linux kernel's fanotify subsystem. This vulnerability allows for a bypass of permission checks because the `fsnotify_get_mark_safe()` function may incorrectly return false for marks on unrelated groups. This could enable an attacker to perform unauthorized actions by circumventing intended security restrictions.

7.1 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Fixed: 309 products

https://access.redhat.com/errata/RHSA-2026:42919

Open the full advisory

RHSA-2026:43307

Vulnerability from csaf_opensuse - Published: 2026-07-22 11:40 - Updated: 2026-10-09 09:36

Summary

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2026-46150.

CVE-2026-46150

7.1 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Fixed: 303 products

https://access.redhat.com/errata/RHSA-2026:43307

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RHSA-2026:49214

Vulnerability from csaf_opensuse - Published: 2026-07-31 18:18 - Updated: 2026-10-06 23:35

Summary

Red Hat Security Advisory: kernel security update

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2026-46150.

CVE-2026-46150

7.1 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Fixed: 120 products

https://access.redhat.com/errata/RHSA-2026:49214

Open the full advisory

RHSA-2026:49213

Vulnerability from csaf_redhat - Published: 2026-07-31 18:16 - Updated: 2026-10-06 23:35

Summary

Red Hat Security Advisory: kernel-rt security update

Severity

Important

Scope

4 vulnerabilities in this advisory, including CVE-2026-46150.

CVE-2026-46150

7.1 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Fixed: 30 products

https://access.redhat.com/errata/RHSA-2026:49213

Open the full advisory

RHSA-2026:62609

Vulnerability from csaf_redhat - Published: 2026-09-02 12:54 - Updated: 2026-10-08 07:16

Summary

Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2026-46150.

CVE-2026-46150

7.1 (High)


                
                  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Fixed: 307 products

https://access.redhat.com/errata/RHSA-2026:62609

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

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

Tags

Sightings

Nomenclature

Related by attack behaviour