CVE-2025-68374 (GCVE-0-2025-68374)
Vulnerability from cvelistv5
Published
2025-12-24 10:33
Modified
2025-12-24 10:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: md: fix rcu protection in md_wakeup_thread We attempted to use RCU to protect the pointer 'thread', but directly passed the value when calling md_wakeup_thread(). This means that the RCU pointer has been acquired before rcu_read_lock(), which renders rcu_read_lock() ineffective and could lead to a use-after-free.
Impacted products
Vendor Product Version
Linux Linux Version: 4469315439827290923fce4f3f672599cabeb366
Version: 4469315439827290923fce4f3f672599cabeb366
Version: 4469315439827290923fce4f3f672599cabeb366
Version: 4469315439827290923fce4f3f672599cabeb366
Create a notification for this product.
Show details on NVD website


{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/md.c",
            "drivers/md/md.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "21989cb5034c835b212385a2afadf279d8069da0",
              "status": "affected",
              "version": "4469315439827290923fce4f3f672599cabeb366",
              "versionType": "git"
            },
            {
              "lessThan": "a4bd1caf591faeae44cb10b6517e7dacb5139bda",
              "status": "affected",
              "version": "4469315439827290923fce4f3f672599cabeb366",
              "versionType": "git"
            },
            {
              "lessThan": "f98b191f78124405294481dea85f8a22a3eb0a59",
              "status": "affected",
              "version": "4469315439827290923fce4f3f672599cabeb366",
              "versionType": "git"
            },
            {
              "lessThan": "0dc76205549b4c25705e54345f211b9f66e018a0",
              "status": "affected",
              "version": "4469315439827290923fce4f3f672599cabeb366",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/md/md.c",
            "drivers/md/md.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.5"
            },
            {
              "lessThan": "6.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.63",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.63",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.13",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.2",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19-rc1",
                  "versionStartIncluding": "6.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd: fix rcu protection in md_wakeup_thread\n\nWe attempted to use RCU to protect the pointer \u0027thread\u0027, but directly\npassed the value when calling md_wakeup_thread(). This means that the\nRCU pointer has been acquired before rcu_read_lock(), which renders\nrcu_read_lock() ineffective and could lead to a use-after-free."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-24T10:33:04.046Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/21989cb5034c835b212385a2afadf279d8069da0"
        },
        {
          "url": "https://git.kernel.org/stable/c/a4bd1caf591faeae44cb10b6517e7dacb5139bda"
        },
        {
          "url": "https://git.kernel.org/stable/c/f98b191f78124405294481dea85f8a22a3eb0a59"
        },
        {
          "url": "https://git.kernel.org/stable/c/0dc76205549b4c25705e54345f211b9f66e018a0"
        }
      ],
      "title": "md: fix rcu protection in md_wakeup_thread",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68374",
    "datePublished": "2025-12-24T10:33:04.046Z",
    "dateReserved": "2025-12-16T14:48:05.310Z",
    "dateUpdated": "2025-12-24T10:33:04.046Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-68374\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-24T11:16:00.993\",\"lastModified\":\"2025-12-24T11:16:00.993\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmd: fix rcu protection in md_wakeup_thread\\n\\nWe attempted to use RCU to protect the pointer \u0027thread\u0027, but directly\\npassed the value when calling md_wakeup_thread(). This means that the\\nRCU pointer has been acquired before rcu_read_lock(), which renders\\nrcu_read_lock() ineffective and could lead to a use-after-free.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0dc76205549b4c25705e54345f211b9f66e018a0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/21989cb5034c835b212385a2afadf279d8069da0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a4bd1caf591faeae44cb10b6517e7dacb5139bda\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f98b191f78124405294481dea85f8a22a3eb0a59\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


Loading…

Loading…