FKIE_CVE-2026-89837

Vulnerability from fkie_nvd - Published: 2026-09-16 11:16 - Updated: 2026-09-16 11:16
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix dentry folio leak in find_in_level find_in_level() gets a dentry folio with f2fs_find_data_folio() before calling find_in_block(). If find_in_block() returns an error, the function stores the error in res_folio and breaks out of the loop without dropping the dentry folio. This leaks the folio reference on the find_in_block() error path. Drop the dentry folio before returning the error to the caller.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/93a3e6a4c9e726a13a935963e8dc43d181db1527
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cca7d3e30bf30333314e31bc70b9a739f1342167
Impacted products
Vendor Product Version
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/dir.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922",
              "status": "affected",
              "version": "7ad08a58bf67594057362e45cbddd3e27e53e557",
              "versionType": "git"
            },
            {
              "lessThan": "93a3e6a4c9e726a13a935963e8dc43d181db1527",
              "status": "affected",
              "version": "7ad08a58bf67594057362e45cbddd3e27e53e557",
              "versionType": "git"
            },
            {
              "lessThan": "cca7d3e30bf30333314e31bc70b9a739f1342167",
              "status": "affected",
              "version": "7ad08a58bf67594057362e45cbddd3e27e53e557",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/f2fs/dir.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "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\nf2fs: fix dentry folio leak in find_in_level\n\nfind_in_level() gets a dentry folio with f2fs_find_data_folio() before\ncalling find_in_block().  If find_in_block() returns an error, the\nfunction stores the error in res_folio and breaks out of the loop without\ndropping the dentry folio.\n\nThis leaks the folio reference on the find_in_block() error path.  Drop\nthe dentry folio before returning the error to the caller."
    }
  ],
  "id": "CVE-2026-89837",
  "lastModified": "2026-09-16T11:16:50.513",
  "metrics": {},
  "published": "2026-09-16T11:16:50.513",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/93a3e6a4c9e726a13a935963e8dc43d181db1527"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aefb4b0f465b6f95fe02b52d1822a3fb4a9ae922"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cca7d3e30bf30333314e31bc70b9a739f1342167"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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