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

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-06-25 08:38
VLAI
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
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < 56763afa013444a9d84ca1b74e4b7130942177ba (git)
Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < 1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd (git)
Affected: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a , < 4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c (git)
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Linux Linux Affected: 2.6.36
Unaffected: 0 , < 2.6.36 (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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          "programFiles": [
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              "operator": "OR"
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          "value": "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."
        }
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      "providerMetadata": {
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    "datePublished": "2026-06-25T08:38:46.751Z",
    "dateReserved": "2026-06-09T07:44:35.389Z",
    "dateUpdated": "2026-06-25T08:38:46.751Z",
    "state": "PUBLISHED"
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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