github - ghsa-8252-q96p-5jpg

GHSA-8252-Q96P-5JPG

Vulnerability from github – Published: 2025-12-09 18:30 – Updated: 2025-12-09 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

dccp: fix data-race around dp->dccps_mss_cache

dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket. Same thing in do_dccp_getsockopt().

Add READ_ONCE()/WRITE_ONCE() annotations, and change dccp_sendmsg() to check again dccps_mss_cache after socket is locked.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53839"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-09T16:17:23Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndccp: fix data-race around dp-\u003edccps_mss_cache\n\ndccp_sendmsg() reads dp-\u003edccps_mss_cache before locking the socket.\nSame thing in do_dccp_getsockopt().\n\nAdd READ_ONCE()/WRITE_ONCE() annotations,\nand change dccp_sendmsg() to check again dccps_mss_cache\nafter socket is locked.",
  "id": "GHSA-8252-q96p-5jpg",
  "modified": "2025-12-09T18:30:33Z",
  "published": "2025-12-09T18:30:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53839"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/67eebc7a9217f999b779d46fba5312a716f0dc1d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d701c95ee6463abcbb6da543060d6e444554135"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a47e598fbd8617967e49d85c49c22f9fc642704c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6ddc1c774874dc704f96a99d015dc759627bba7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1f38d313bdfc52fb2f662e66d0c60dd1cfe2384"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f239c9e1d98b313435481b4926e8bdd06197e4d8"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2023-53839 (GCVE-0-2023-53839)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:29 – Updated: 2025-12-09 01:29

Title

dccp: fix data-race around dp->dccps_mss_cache

Summary

In the Linux kernel, the following vulnerability has been resolved: dccp: fix data-race around dp->dccps_mss_cache dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket. Same thing in do_dccp_getsockopt(). Add READ_ONCE()/WRITE_ONCE() annotations, and change dccp_sendmsg() to check again dccps_mss_cache after socket is locked.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/162fa1e3cfb62aa78…
	https://git.kernel.org/stable/c/2bdc7f272b3a110a4…
	https://git.kernel.org/stable/c/67eebc7a9217f999b…
	https://git.kernel.org/stable/c/6d701c95ee6463abc…
	https://git.kernel.org/stable/c/f239c9e1d98b31343…
	https://git.kernel.org/stable/c/a6ddc1c774874dc70…
	https://git.kernel.org/stable/c/d1f38d313bdfc52fb…
	https://git.kernel.org/stable/c/a47e598fbd8617967…

Impacted products

Vendor

Product

Version

Linux

Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < 162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < 2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < 67eebc7a9217f999b779d46fba5312a716f0dc1d (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < 6d701c95ee6463abcbb6da543060d6e444554135 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < f239c9e1d98b313435481b4926e8bdd06197e4d8 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < a6ddc1c774874dc704f96a99d015dc759627bba7 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < d1f38d313bdfc52fb2f662e66d0c60dd1cfe2384 (git)
Affected: 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c , < a47e598fbd8617967e49d85c49c22f9fc642704c (git)

Linux

Affected: 2.6.14
Unaffected: 0 , < 2.6.14 (semver)
Unaffected: 4.14.323 , ≤ 4.14.* (semver)
Unaffected: 4.19.292 , ≤ 4.19.* (semver)
Unaffected: 5.4.254 , ≤ 5.4.* (semver)
Unaffected: 5.10.191 , ≤ 5.10.* (semver)
Unaffected: 5.15.127 , ≤ 5.15.* (semver)
Unaffected: 6.1.46 , ≤ 6.1.* (semver)
Unaffected: 6.4.11 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/dccp/output.c",
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          ],
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          "vendor": "Linux",
          "versions": [
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              "versionType": "git"
            },
            {
              "lessThan": "2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817",
              "status": "affected",
              "version": "7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c",
              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
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              "versionType": "git"
            },
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            {
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              "versionType": "git"
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        {
          "defaultStatus": "affected",
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          "programFiles": [
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            "net/dccp/proto.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.14"
            },
            {
              "lessThan": "2.6.14",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.14.*",
              "status": "unaffected",
              "version": "4.14.323",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.292",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.254",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.191",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.127",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.323",
                  "versionStartIncluding": "2.6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.292",
                  "versionStartIncluding": "2.6.14",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.254",
                  "versionStartIncluding": "2.6.14",
                  "vulnerable": true
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                  "versionEndExcluding": "5.10.191",
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                  "vulnerable": true
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                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.1.46",
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                  "versionStartIncluding": "2.6.14",
                  "vulnerable": true
                },
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                  "versionEndExcluding": "6.5",
                  "versionStartIncluding": "2.6.14",
                  "vulnerable": true
                }
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              "negate": false,
              "operator": "OR"
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      "providerMetadata": {
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        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/6d701c95ee6463abcbb6da543060d6e444554135"
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          "url": "https://git.kernel.org/stable/c/f239c9e1d98b313435481b4926e8bdd06197e4d8"
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          "url": "https://git.kernel.org/stable/c/d1f38d313bdfc52fb2f662e66d0c60dd1cfe2384"
        },
        {
          "url": "https://git.kernel.org/stable/c/a47e598fbd8617967e49d85c49c22f9fc642704c"
        }
      ],
      "title": "dccp: fix data-race around dp-\u003edccps_mss_cache",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
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    "datePublished": "2025-12-09T01:29:55.540Z",
    "dateReserved": "2025-12-09T01:27:17.826Z",
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    "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

GHSA-8252-Q96P-5JPG

CVE-2023-53839 (GCVE-0-2023-53839)

Tags

Sightings

Nomenclature