CVE-2026-64185 (GCVE-0-2026-64185)

Vulnerability from cvelistv5 – Published: 2026-07-19 15:41 – Updated: 2026-07-19 15:41
VLAI
Title
sysfs: don't remove existing directory on update failure
Summary
In the Linux kernel, the following vulnerability has been resolved: sysfs: don't remove existing directory on update failure When sysfs_update_group() is called for a named group and create_files() fails (e.g. -ENOMEM), internal_create_group() calls kernfs_remove(kn) on the group directory. In the update path, kn was obtained via kernfs_find_and_get() and refers to a directory that already existed before this call. Removing it silently destroys a sysfs group that the caller did not create. Only remove the directory if we created it ourselves. On update failure the directory remains as it is left empty by remove_files() inside create_files(), but can be repopulated by a retry.
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: c855cf2759d27142f771173d9fd8e7fdf9cf5138 , < c5e125c828b701afaf7493b42a14aa89362ff36d (git)
Affected: c855cf2759d27142f771173d9fd8e7fdf9cf5138 , < ccadd32cc1263802a5969c9efe0e96225450428c (git)
Affected: c855cf2759d27142f771173d9fd8e7fdf9cf5138 , < 14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a (git)
Affected: c855cf2759d27142f771173d9fd8e7fdf9cf5138 , < 31527d80234caf83dc96ad478645e57df9de4472 (git)
Affected: c855cf2759d27142f771173d9fd8e7fdf9cf5138 , < 57b285e0368290aa55f79ba11419b96d0ebdb418 (git)
Affected: c855cf2759d27142f771173d9fd8e7fdf9cf5138 , < 48fa96538bd2868034d33429e4565fda384d0736 (git)
Affected: c855cf2759d27142f771173d9fd8e7fdf9cf5138 , < 708f6926f61f71e09b5e9fd668b9882ccd46e69f (git)
Affected: c855cf2759d27142f771173d9fd8e7fdf9cf5138 , < 237557b8a81ab948e8332f7c0058e758f081c0a3 (git)
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Linux Linux Affected: 4.19
Unaffected: 0 , < 4.19 (semver)
Unaffected: 5.10.258 , ≤ 5.10.* (semver)
Unaffected: 5.15.209 , ≤ 5.15.* (semver)
Unaffected: 6.1.175 , ≤ 6.1.* (semver)
Unaffected: 6.6.142 , ≤ 6.6.* (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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Show details on NVD website

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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/c5e125c828b701afaf7493b42a14aa89362ff36d"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/ccadd32cc1263802a5969c9efe0e96225450428c"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-11T22:01:45+00:00",
      "cve": "CVE-2026-64185",
      "id": "CVE-2026-64185",
      "initial_release_date": "2026-07-19T00:00:00+00:00",
      "product_status:known_affected": "246",
      "product_status:known_not_affected": "28",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: sysfs: don\u0027t remove existing directory on update failure",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-64185.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-18T00:43:07Z",
      "cve": "CVE-2026-64185",
      "id": "CVE-2026-64185",
      "initial_release_date": "2026-07-21T12:58:09Z",
      "product_status:known_affected": "242",
      "product_status:known_not_affected": "97",
      "product_status:recommended": "107",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-64185",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64185.json",
      "version": "10"
    }
  }
}



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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.

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.

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Detection rules are retrieved from Rulezet.

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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.


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