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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
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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  }
}



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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

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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.
  • 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.