Vulnerability-Lookup

GHSA-5P79-2GJ5-H84M

Vulnerability from github – Published: 2026-07-19 18:31 – Updated: 2026-07-19 18:31

Details

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

netfs: Fix partial invalidation of streaming-write folio

In netfs_invalidate_folio(), if the region of a partial invalidation overlaps the front (but not all) of a dirty write cached in a streaming write page (dirty, but not uptodate, with the dirty region tracked by a netfs_folio struct), the function modifies the dirty region - but incorrectly as it moves the region forward by setting the start to the start, not the end, of the invalidation region.

Fix this by setting finfo->dirty_offset to the end of the invalidation region (iend).

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{
  "affected": [],
  "aliases": [
    "CVE-2026-64157"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-19T16:17:57Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix partial invalidation of streaming-write folio\n\nIn netfs_invalidate_folio(), if the region of a partial invalidation\noverlaps the front (but not all) of a dirty write cached in a streaming\nwrite page (dirty, but not uptodate, with the dirty region tracked by a\nnetfs_folio struct), the function modifies the dirty region - but\nincorrectly as it moves the region forward by setting the start to the\nstart, not the end, of the invalidation region.\n\nFix this by setting finfo-\u003edirty_offset to the end of the invalidation\nregion (iend).",
  "id": "GHSA-5p79-2gj5-h84m",
  "modified": "2026-07-19T18:31:54Z",
  "published": "2026-07-19T18:31:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64157"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3d9601c029b934b5b6a10f99791467b10eb6b211"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6a3d27116be2c5fb9a03d5cf37c486ac517f3689"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d91acc7fb85d33ea58fca9b964a32a453937f4b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f6b2569ae29b666fd15ff2848684c445ba442a39"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-64157 (GCVE-0-2026-64157)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:40 – Updated: 2026-07-19 15:40

Title

netfs: Fix partial invalidation of streaming-write folio

Summary

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix partial invalidation of streaming-write folio In netfs_invalidate_folio(), if the region of a partial invalidation overlaps the front (but not all) of a dirty write cached in a streaming write page (dirty, but not uptodate, with the dirty region tracked by a netfs_folio struct), the function modifies the dirty region - but incorrectly as it moves the region forward by setting the start to the start, not the end, of the invalidation region. Fix this by setting finfo->dirty_offset to the end of the invalidation region (iend).

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/f6b2569ae29b666fd…
https://git.kernel.org/stable/c/3d9601c029b934b5b…
https://git.kernel.org/stable/c/6a3d27116be2c5fb9…
https://git.kernel.org/stable/c/6d91acc7fb85d33ea…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: cce6bfa6ca0e30af9927b0074c97fe6a92f28092 , < f6b2569ae29b666fd15ff2848684c445ba442a39 (git) Affected: cce6bfa6ca0e30af9927b0074c97fe6a92f28092 , < 3d9601c029b934b5b6a10f99791467b10eb6b211 (git) Affected: cce6bfa6ca0e30af9927b0074c97fe6a92f28092 , < 6a3d27116be2c5fb9a03d5cf37c486ac517f3689 (git) Affected: cce6bfa6ca0e30af9927b0074c97fe6a92f28092 , < 6d91acc7fb85d33ea58fca9b964a32a453937f4b (git) Affected: e2814004138a541110d4b2dc254a8f619c2c4ce0 (git) Affected: 6.10.8 , < 6.11 (semver)
Linux	Linux	Affected: 6.11 Unaffected: 0 , < 6.11 (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/netfs/misc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f6b2569ae29b666fd15ff2848684c445ba442a39",
              "status": "affected",
              "version": "cce6bfa6ca0e30af9927b0074c97fe6a92f28092",
              "versionType": "git"
            },
            {
              "lessThan": "3d9601c029b934b5b6a10f99791467b10eb6b211",
              "status": "affected",
              "version": "cce6bfa6ca0e30af9927b0074c97fe6a92f28092",
              "versionType": "git"
            },
            {
              "lessThan": "6a3d27116be2c5fb9a03d5cf37c486ac517f3689",
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              "versionType": "git"
            },
            {
              "lessThan": "6d91acc7fb85d33ea58fca9b964a32a453937f4b",
              "status": "affected",
              "version": "cce6bfa6ca0e30af9927b0074c97fe6a92f28092",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e2814004138a541110d4b2dc254a8f619c2c4ce0",
              "versionType": "git"
            },
            {
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              "version": "6.10.8",
              "versionType": "semver"
            }
          ]
        },
        {
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          "product": "Linux",
          "programFiles": [
            "fs/netfs/misc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.92",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.11",
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                },
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix partial invalidation of streaming-write folio\n\nIn netfs_invalidate_folio(), if the region of a partial invalidation\noverlaps the front (but not all) of a dirty write cached in a streaming\nwrite page (dirty, but not uptodate, with the dirty region tracked by a\nnetfs_folio struct), the function modifies the dirty region - but\nincorrectly as it moves the region forward by setting the start to the\nstart, not the end, of the invalidation region.\n\nFix this by setting finfo-\u003edirty_offset to the end of the invalidation\nregion (iend)."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-19T15:40:44.964Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/f6b2569ae29b666fd15ff2848684c445ba442a39"
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        {
          "url": "https://git.kernel.org/stable/c/6d91acc7fb85d33ea58fca9b964a32a453937f4b"
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      ],
      "title": "netfs: Fix partial invalidation of streaming-write folio",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-64157",
    "datePublished": "2026-07-19T15:40:44.964Z",
    "dateReserved": "2026-07-19T07:54:57.038Z",
    "dateUpdated": "2026-07-19T15:40:44.964Z",
    "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.

Action not permitted

GHSA-5P79-2GJ5-H84M

CVE-2026-64157 (GCVE-0-2026-64157)

Tags

Sightings

Nomenclature