FKIE_CVE-2026-64185

Vulnerability from fkie_nvd - Published: 2026-07-19 16:18 - Updated: 2026-07-19 16:18
Severity
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/237557b8a81ab948e8332f7c0058e758f081c0a3
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/31527d80234caf83dc96ad478645e57df9de4472
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/48fa96538bd2868034d33429e4565fda384d0736
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/57b285e0368290aa55f79ba11419b96d0ebdb418
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/708f6926f61f71e09b5e9fd668b9882ccd46e69f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c5e125c828b701afaf7493b42a14aa89362ff36d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ccadd32cc1263802a5969c9efe0e96225450428c
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/sysfs/group.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c5e125c828b701afaf7493b42a14aa89362ff36d",
              "status": "affected",
              "version": "c855cf2759d27142f771173d9fd8e7fdf9cf5138",
              "versionType": "git"
            },
            {
              "lessThan": "ccadd32cc1263802a5969c9efe0e96225450428c",
              "status": "affected",
              "version": "c855cf2759d27142f771173d9fd8e7fdf9cf5138",
              "versionType": "git"
            },
            {
              "lessThan": "14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a",
              "status": "affected",
              "version": "c855cf2759d27142f771173d9fd8e7fdf9cf5138",
              "versionType": "git"
            },
            {
              "lessThan": "31527d80234caf83dc96ad478645e57df9de4472",
              "status": "affected",
              "version": "c855cf2759d27142f771173d9fd8e7fdf9cf5138",
              "versionType": "git"
            },
            {
              "lessThan": "57b285e0368290aa55f79ba11419b96d0ebdb418",
              "status": "affected",
              "version": "c855cf2759d27142f771173d9fd8e7fdf9cf5138",
              "versionType": "git"
            },
            {
              "lessThan": "48fa96538bd2868034d33429e4565fda384d0736",
              "status": "affected",
              "version": "c855cf2759d27142f771173d9fd8e7fdf9cf5138",
              "versionType": "git"
            },
            {
              "lessThan": "708f6926f61f71e09b5e9fd668b9882ccd46e69f",
              "status": "affected",
              "version": "c855cf2759d27142f771173d9fd8e7fdf9cf5138",
              "versionType": "git"
            },
            {
              "lessThan": "237557b8a81ab948e8332f7c0058e758f081c0a3",
              "status": "affected",
              "version": "c855cf2759d27142f771173d9fd8e7fdf9cf5138",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/sysfs/group.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.19"
            },
            {
              "lessThan": "4.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.142",
              "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsysfs: don\u0027t remove existing directory on update failure\n\nWhen sysfs_update_group() is called for a named group and create_files()\nfails (e.g. -ENOMEM), internal_create_group() calls kernfs_remove(kn) on\nthe group directory.  In the update path, kn was obtained via\nkernfs_find_and_get() and refers to a directory that already existed\nbefore this call.  Removing it silently destroys a sysfs group that the\ncaller did not create.\n\nOnly remove the directory if we created it ourselves.  On update failure\nthe directory remains as it is left empty by remove_files() inside\ncreate_files(), but can be repopulated by a retry."
    }
  ],
  "id": "CVE-2026-64185",
  "lastModified": "2026-07-19T16:18:00.917",
  "metrics": {},
  "published": "2026-07-19T16:18:00.917",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/14f2c14ae86c4af17a0a9f8ab46dacf2d5fd1d8a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/237557b8a81ab948e8332f7c0058e758f081c0a3"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/31527d80234caf83dc96ad478645e57df9de4472"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/48fa96538bd2868034d33429e4565fda384d0736"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/57b285e0368290aa55f79ba11419b96d0ebdb418"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/708f6926f61f71e09b5e9fd668b9882ccd46e69f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c5e125c828b701afaf7493b42a14aa89362ff36d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ccadd32cc1263802a5969c9efe0e96225450428c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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