Vulnerability-Lookup

GHSA-VG6G-9H68-878W

Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-07-30 15:31

Details

In the Linux kernel, the following vulnerability has been resolved:

fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios

FUSE_NOTIFY_RETRIEVE must be limited to uptodate folios; !uptodate folios can contain uninitialized data. Since FUSE_NOTIFY_RETRIEVE is intended to only return data that is already in the page cache and not wait for data from the FUSE daemon, treat !uptodate folios as if they weren't present.

This only has security impact on systems that don't enable automatic zero-initialization of all page allocations via CONFIG_INIT_ON_ALLOC_DEFAULT_ON or init_on_alloc=1.

Severity

5.5 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53167"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-908"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T09:16:34Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios\n\nFUSE_NOTIFY_RETRIEVE must be limited to uptodate folios; !uptodate folios\ncan contain uninitialized data.\nSince FUSE_NOTIFY_RETRIEVE is intended to only return data that is already\nin the page cache and not wait for data from the FUSE daemon, treat\n!uptodate folios as if they weren\u0027t present.\n\nThis only has security impact on systems that don\u0027t enable automatic\nzero-initialization of all page allocations via\nCONFIG_INIT_ON_ALLOC_DEFAULT_ON or init_on_alloc=1.",
  "id": "GHSA-vg6g-9h68-878w",
  "modified": "2026-07-30T15:31:10Z",
  "published": "2026-06-25T09:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53167"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e14f29473eda18fb2af082dd2fd4c12139862cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/56763afa013444a9d84ca1b74e4b7130942177ba"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/651801d75ad0897dbd331b3cc6a4da3e78f60d42"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68a9282d5ea5b8780d59122505ad633e6daede90"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8bef2f840b43e0879478fe3aaa9ff2f0b80798a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c"
    },
    {
      "type": "WEB",
      "url": "https://project-zero.issues.chromium.org/issues/514653451"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-53167 (GCVE-0-2026-53167)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-07-30 12:57

Title

fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios

Summary

In the Linux kernel, the following vulnerability has been resolved: fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios FUSE_NOTIFY_RETRIEVE must be limited to uptodate folios; !uptodate folios can contain uninitialized data. Since FUSE_NOTIFY_RETRIEVE is intended to only return data that is already in the page cache and not wait for data from the FUSE daemon, treat !uptodate folios as if they weren't present. This only has security impact on systems that don't enable automatic zero-initialization of all page allocations via CONFIG_INIT_ON_ALLOC_DEFAULT_ON or init_on_alloc=1.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

9 references

URL	Tags
https://git.kernel.org/stable/c/feafe8ccb1584254f…
https://git.kernel.org/stable/c/651801d75ad0897db…
https://git.kernel.org/stable/c/4e14f29473eda18fb…
https://git.kernel.org/stable/c/8bef2f840b43e0879…
https://git.kernel.org/stable/c/68a9282d5ea5b8780…
https://git.kernel.org/stable/c/56763afa013444a9d…
https://git.kernel.org/stable/c/1fb8735a3a4d894f8…
https://git.kernel.org/stable/c/4e3d1b2c48ca6c55f…
https://project-zero.issues.chromium.org/issues/5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c (git) Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < 651801d75ad0897dbd331b3cc6a4da3e78f60d42 (git) Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < 4e14f29473eda18fb2af082dd2fd4c12139862cd (git) Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < 8bef2f840b43e0879478fe3aaa9ff2f0b80798a5 (git) Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < 68a9282d5ea5b8780d59122505ad633e6daede90 (git) Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < 56763afa013444a9d84ca1b74e4b7130942177ba (git) Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < 1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd (git) Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < 4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c (git)
Linux	Linux	Affected: 2.6.36 Unaffected: 0 , < 2.6.36 (semver) Unaffected: 5.10.260 , ≤ 5.10.* (semver) Unaffected: 5.15.211 , ≤ 5.15.* (semver) Unaffected: 6.1.177 , ≤ 6.1.* (semver) Unaffected: 6.6.144 , ≤ 6.6.* (semver) Unaffected: 6.12.95 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/fuse/dev.c"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.211",
              "versionType": "semver"
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              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.177",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.6.144",
              "versionType": "semver"
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        },
        {
          "url": "https://project-zero.issues.chromium.org/issues/514653451"
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      ],
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    "state": "PUBLISHED"
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}

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.

Detection rules are retrieved from Rulezet.

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.
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