CVE-2026-53167 (GCVE-0-2026-53167)
Vulnerability from cvelistv5
Published
2026-06-25 08:38
Modified
2026-07-30 12:57
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a
Version: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a
Version: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a
Version: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a
Version: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a
Version: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a
Version: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a
Version: 2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/fuse/dev.c"
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          "vendor": "Linux",
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              "version": "2.6.36"
            },
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              "status": "unaffected",
              "version": "0",
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              "status": "unaffected",
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            },
            {
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              "status": "unaffected",
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              "version": "7.1",
              "versionType": "original_commit_for_fix"
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-30T12:57:11.720Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/feafe8ccb1584254f59fbd4946d6ca7ef1e3e99c"
        },
        {
          "url": "https://git.kernel.org/stable/c/651801d75ad0897dbd331b3cc6a4da3e78f60d42"
        },
        {
          "url": "https://git.kernel.org/stable/c/4e14f29473eda18fb2af082dd2fd4c12139862cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/8bef2f840b43e0879478fe3aaa9ff2f0b80798a5"
        },
        {
          "url": "https://git.kernel.org/stable/c/68a9282d5ea5b8780d59122505ad633e6daede90"
        },
        {
          "url": "https://git.kernel.org/stable/c/56763afa013444a9d84ca1b74e4b7130942177ba"
        },
        {
          "url": "https://git.kernel.org/stable/c/1fb8735a3a4d894f8c1f90b741a3ab1d3817f9bd"
        },
        {
          "url": "https://git.kernel.org/stable/c/4e3d1b2c48ca6c55f1e9ca7f8dccc76f120f276c"
        },
        {
          "url": "https://project-zero.issues.chromium.org/issues/514653451"
        }
      ],
      "title": "fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53167",
    "datePublished": "2026-06-25T08:38:46.751Z",
    "dateReserved": "2026-06-09T07:44:35.389Z",
    "dateUpdated": "2026-07-30T12:57:11.720Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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