CVE-2025-38382 (GCVE-0-2025-38382)

Vulnerability from cvelistv5 – Published: 2025-07-25 12:53 – Updated: 2026-05-11 21:26
VLAI?
Title
btrfs: fix iteration of extrefs during log replay
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix iteration of extrefs during log replay At __inode_add_ref() when processing extrefs, if we jump into the next label we have an undefined value of victim_name.len, since we haven't initialized it before we did the goto. This results in an invalid memory access in the next iteration of the loop since victim_name.len was not initialized to the length of the name of the current extref. Fix this by initializing victim_name.len with the current extref's name length.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1cf474cd474bc5d3ef63086ffd009a87a5b7bb2e , < 539969fc472886a1d63565459514d47e27fef461 (git)
Affected: e43eec81c5167b655b72c781b0e75e62a05e415e , < 2d11d274e2e1d7c79e2ca8461ce3ff3a95c11171 (git)
Affected: e43eec81c5167b655b72c781b0e75e62a05e415e , < 7ac790dc2ba00499a8d671d4a24de4d4ad27e234 (git)
Affected: e43eec81c5167b655b72c781b0e75e62a05e415e , < aee57a0293dca675637e5504709f9f8fd8e871be (git)
Affected: e43eec81c5167b655b72c781b0e75e62a05e415e , < 54a7081ed168b72a8a2d6ef4ba3a1259705a2926 (git)
Create a notification for this product.
Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.1.144 , ≤ 6.1.* (semver)
Unaffected: 6.6.97 , ≤ 6.6.* (semver)
Unaffected: 6.12.37 , ≤ 6.12.* (semver)
Unaffected: 6.15.6 , ≤ 6.15.* (semver)
Unaffected: 6.16 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:37:15.284Z",
          "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/btrfs/tree-log.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "539969fc472886a1d63565459514d47e27fef461",
              "status": "affected",
              "version": "1cf474cd474bc5d3ef63086ffd009a87a5b7bb2e",
              "versionType": "git"
            },
            {
              "lessThan": "2d11d274e2e1d7c79e2ca8461ce3ff3a95c11171",
              "status": "affected",
              "version": "e43eec81c5167b655b72c781b0e75e62a05e415e",
              "versionType": "git"
            },
            {
              "lessThan": "7ac790dc2ba00499a8d671d4a24de4d4ad27e234",
              "status": "affected",
              "version": "e43eec81c5167b655b72c781b0e75e62a05e415e",
              "versionType": "git"
            },
            {
              "lessThan": "aee57a0293dca675637e5504709f9f8fd8e871be",
              "status": "affected",
              "version": "e43eec81c5167b655b72c781b0e75e62a05e415e",
              "versionType": "git"
            },
            {
              "lessThan": "54a7081ed168b72a8a2d6ef4ba3a1259705a2926",
              "status": "affected",
              "version": "e43eec81c5167b655b72c781b0e75e62a05e415e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/tree-log.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.144",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.97",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.37",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.144",
                  "versionStartIncluding": "6.1.57",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.97",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.37",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.6",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix iteration of extrefs during log replay\n\nAt __inode_add_ref() when processing extrefs, if we jump into the next\nlabel we have an undefined value of victim_name.len, since we haven\u0027t\ninitialized it before we did the goto. This results in an invalid memory\naccess in the next iteration of the loop since victim_name.len was not\ninitialized to the length of the name of the current extref.\n\nFix this by initializing victim_name.len with the current extref\u0027s name\nlength."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:26:53.332Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/539969fc472886a1d63565459514d47e27fef461"
        },
        {
          "url": "https://git.kernel.org/stable/c/2d11d274e2e1d7c79e2ca8461ce3ff3a95c11171"
        },
        {
          "url": "https://git.kernel.org/stable/c/7ac790dc2ba00499a8d671d4a24de4d4ad27e234"
        },
        {
          "url": "https://git.kernel.org/stable/c/aee57a0293dca675637e5504709f9f8fd8e871be"
        },
        {
          "url": "https://git.kernel.org/stable/c/54a7081ed168b72a8a2d6ef4ba3a1259705a2926"
        }
      ],
      "title": "btrfs: fix iteration of extrefs during log replay",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38382",
    "datePublished": "2025-07-25T12:53:23.665Z",
    "dateReserved": "2025-04-16T04:51:24.010Z",
    "dateUpdated": "2026-05-11T21:26:53.332Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-38382",
      "date": "2026-05-21",
      "epss": "0.0007",
      "percentile": "0.21238"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38382\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-25T13:15:27.390\",\"lastModified\":\"2025-12-16T20:11:18.220\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: fix iteration of extrefs during log replay\\n\\nAt __inode_add_ref() when processing extrefs, if we jump into the next\\nlabel we have an undefined value of victim_name.len, since we haven\u0027t\\ninitialized it before we did the goto. This results in an invalid memory\\naccess in the next iteration of the loop since victim_name.len was not\\ninitialized to the length of the name of the current extref.\\n\\nFix this by initializing victim_name.len with the current extref\u0027s name\\nlength.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: correcci\u00f3n de la iteraci\u00f3n de referencias externas durante la reproducci\u00f3n del registro. En __inode_add_ref(), al procesar referencias externas, si saltamos a la siguiente etiqueta, obtenemos un valor indefinido de victim_name.len, ya que no lo inicializamos antes de ejecutar el comando goto. Esto provoca un acceso a memoria no v\u00e1lido en la siguiente iteraci\u00f3n del bucle, ya que victim_name.len no se inicializ\u00f3 con la longitud del nombre de la referencia externa actual. Para solucionar esto, inicialice victim_name.len con la longitud del nombre de la referencia externa actual.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-908\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.1.57\",\"versionEndExcluding\":\"6.1.144\",\"matchCriteriaId\":\"CE86DCD5-7D5D-4615-855B-598A8C3D1E67\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.97\",\"matchCriteriaId\":\"EB1BB991-B903-4718-966C-07C803CBEABC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.37\",\"matchCriteriaId\":\"6B4159AA-C70D-4DE5-9EE2-8F2728F13C5D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.15.6\",\"matchCriteriaId\":\"6E0BB4E0-44BC-4645-83A8-6EA232CE624C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"6D4894DB-CCFE-4602-B1BF-3960B2E19A01\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"09709862-E348-4378-8632-5A7813EDDC86\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"415BF58A-8197-43F5-B3D7-D1D63057A26E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"A0517869-312D-4429-80C2-561086E1421C\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2d11d274e2e1d7c79e2ca8461ce3ff3a95c11171\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/539969fc472886a1d63565459514d47e27fef461\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/54a7081ed168b72a8a2d6ef4ba3a1259705a2926\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7ac790dc2ba00499a8d671d4a24de4d4ad27e234\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/aee57a0293dca675637e5504709f9f8fd8e871be\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.



Detection rules are retrieved from Rulezet.