fkie_nvd - fkie_cve-2025-39825

FKIE_CVE-2025-39825

Vulnerability from fkie_nvd - Published: 2025-09-16 13:16 - Updated: 2025-11-03 18:16

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix race with concurrent opens in rename(2) Besides sending the rename request to the server, the rename process also involves closing any deferred close, waiting for outstanding I/O to complete as well as marking all existing open handles as deleted to prevent them from deferring closes, which increases the race window for potential concurrent opens on the target file. Fix this by unhashing the dentry in advance to prevent any concurrent opens on the target.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/24b9ed739c8c5b464d983e12cf308982f3ae93c2
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/289f945acb20b9b54fe4d13895e44aa58965ddb2
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c9991af5e09924f6f3b3e6996a5e09f9504b4358
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c9e7de284da0be5b44dbe79d71573f9f7f9b144c
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d84291fc7453df7881a970716f8256273aca5747
	af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix race with concurrent opens in rename(2)\n\nBesides sending the rename request to the server, the rename process\nalso involves closing any deferred close, waiting for outstanding I/O\nto complete as well as marking all existing open handles as deleted to\nprevent them from deferring closes, which increases the race window\nfor potential concurrent opens on the target file.\n\nFix this by unhashing the dentry in advance to prevent any concurrent\nopens on the target."
    }
  ],
  "id": "CVE-2025-39825",
  "lastModified": "2025-11-03T18:16:48.883",
  "metrics": {},
  "published": "2025-09-16T13:16:01.780",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/24b9ed739c8c5b464d983e12cf308982f3ae93c2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/289f945acb20b9b54fe4d13895e44aa58965ddb2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c9991af5e09924f6f3b3e6996a5e09f9504b4358"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c9e7de284da0be5b44dbe79d71573f9f7f9b144c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d84291fc7453df7881a970716f8256273aca5747"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2025-39825 (GCVE-0-2025-39825)

Vulnerability from cvelistv5 – Published: 2025-09-16 13:00 – Updated: 2025-11-03 17:43

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c9e7de284da0be5b4…
	https://git.kernel.org/stable/c/24b9ed739c8c5b464…
	https://git.kernel.org/stable/c/c9991af5e09924f6f…
	https://git.kernel.org/stable/c/289f945acb20b9b54…
	https://git.kernel.org/stable/c/d84291fc7453df788…

Impacted products

Vendor

Product

Version

Linux

Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c9e7de284da0be5b44dbe79d71573f9f7f9b144c (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 24b9ed739c8c5b464d983e12cf308982f3ae93c2 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c9991af5e09924f6f3b3e6996a5e09f9504b4358 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 289f945acb20b9b54fe4d13895e44aa58965ddb2 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d84291fc7453df7881a970716f8256273aca5747 (git)

Linux

Unaffected: 6.1.150 , ≤ 6.1.* (semver)
Unaffected: 6.6.104 , ≤ 6.6.* (semver)
Unaffected: 6.12.45 , ≤ 6.12.* (semver)
Unaffected: 6.16.5 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:43:46.244Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c9e7de284da0be5b44dbe79d71573f9f7f9b144c",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "24b9ed739c8c5b464d983e12cf308982f3ae93c2",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "c9991af5e09924f6f3b3e6996a5e09f9504b4358",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "289f945acb20b9b54fe4d13895e44aa58965ddb2",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
              "lessThan": "d84291fc7453df7881a970716f8256273aca5747",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/smb/client/inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.150",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.104",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.45",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.150",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.104",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.45",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix race with concurrent opens in rename(2)\n\nBesides sending the rename request to the server, the rename process\nalso involves closing any deferred close, waiting for outstanding I/O\nto complete as well as marking all existing open handles as deleted to\nprevent them from deferring closes, which increases the race window\nfor potential concurrent opens on the target file.\n\nFix this by unhashing the dentry in advance to prevent any concurrent\nopens on the target."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-29T06:00:26.381Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c9e7de284da0be5b44dbe79d71573f9f7f9b144c"
        },
        {
          "url": "https://git.kernel.org/stable/c/24b9ed739c8c5b464d983e12cf308982f3ae93c2"
        },
        {
          "url": "https://git.kernel.org/stable/c/c9991af5e09924f6f3b3e6996a5e09f9504b4358"
        },
        {
          "url": "https://git.kernel.org/stable/c/289f945acb20b9b54fe4d13895e44aa58965ddb2"
        },
        {
          "url": "https://git.kernel.org/stable/c/d84291fc7453df7881a970716f8256273aca5747"
        }
      ],
      "title": "smb: client: fix race with concurrent opens in rename(2)",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39825",
    "datePublished": "2025-09-16T13:00:23.897Z",
    "dateReserved": "2025-04-16T07:20:57.140Z",
    "dateUpdated": "2025-11-03T17:43:46.244Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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

FKIE_CVE-2025-39825

CVE-2025-39825 (GCVE-0-2025-39825)

Tags

Sightings

Nomenclature