Vulnerability-Lookup

GHSA-C3VJ-7CM3-P3XG

Vulnerability from github – Published: 2026-01-23 15:31 – Updated: 2026-01-23 15:31

Details

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

net/handshake: restore destructor on submit failure

handshake_req_submit() replaces sk->sk_destruct but never restores it when submission fails before the request is hashed. handshake_sk_destruct() then returns early and the original destructor never runs, leaking the socket. Restore sk_destruct on the error path.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-71148"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-23T15:16:05Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/handshake: restore destructor on submit failure\n\nhandshake_req_submit() replaces sk-\u003esk_destruct but never restores it when\nsubmission fails before the request is hashed. handshake_sk_destruct() then\nreturns early and the original destructor never runs, leaking the socket.\nRestore sk_destruct on the error path.",
  "id": "GHSA-c3vj-7cm3-p3xg",
  "modified": "2026-01-23T15:31:35Z",
  "published": "2026-01-23T15:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71148"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6af2a01d65f89e73c1cbb9267f8880d83a88cee4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7b82a1d6ae869533d8bdb0282a3a78faed8e63dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b225325be7b247c7268e65eea6090db1fc786d1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd8cf2be3717137554744233fda051ffc09d1d44"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-71148 (GCVE-0-2025-71148)

Vulnerability from cvelistv5 – Published: 2026-01-23 14:15 – Updated: 2026-01-23 14:15

Title

net/handshake: restore destructor on submit failure

Summary

In the Linux kernel, the following vulnerability has been resolved: net/handshake: restore destructor on submit failure handshake_req_submit() replaces sk->sk_destruct but never restores it when submission fails before the request is hashed. handshake_sk_destruct() then returns early and the original destructor never runs, leaking the socket. Restore sk_destruct on the error path.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/cd8cf2be371713755…
	https://git.kernel.org/stable/c/7b82a1d6ae869533d…
	https://git.kernel.org/stable/c/b225325be7b247c72…
	https://git.kernel.org/stable/c/6af2a01d65f89e73c…

Impacted products

Vendor

Product

Version

Linux

Affected: 3b3009ea8abb713b022d94fba95ec270cf6e7eae , < cd8cf2be3717137554744233fda051ffc09d1d44 (git)
Affected: 3b3009ea8abb713b022d94fba95ec270cf6e7eae , < 7b82a1d6ae869533d8bdb0282a3a78faed8e63dd (git)
Affected: 3b3009ea8abb713b022d94fba95ec270cf6e7eae , < b225325be7b247c7268e65eea6090db1fc786d1f (git)
Affected: 3b3009ea8abb713b022d94fba95ec270cf6e7eae , < 6af2a01d65f89e73c1cbb9267f8880d83a88cee4 (git)

Linux

Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.64 , ≤ 6.12.* (semver)
Unaffected: 6.18.3 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/handshake/request.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cd8cf2be3717137554744233fda051ffc09d1d44",
              "status": "affected",
              "version": "3b3009ea8abb713b022d94fba95ec270cf6e7eae",
              "versionType": "git"
            },
            {
              "lessThan": "7b82a1d6ae869533d8bdb0282a3a78faed8e63dd",
              "status": "affected",
              "version": "3b3009ea8abb713b022d94fba95ec270cf6e7eae",
              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/handshake/request.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.4"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.12.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19-rc2",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "6.4",
                  "vulnerable": true
                },
                {
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                  "versionStartIncluding": "6.4",
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                },
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                  "vulnerable": true
                }
              ],
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              "operator": "OR"
            }
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/handshake: restore destructor on submit failure\n\nhandshake_req_submit() replaces sk-\u003esk_destruct but never restores it when\nsubmission fails before the request is hashed. handshake_sk_destruct() then\nreturns early and the original destructor never runs, leaking the socket.\nRestore sk_destruct on the error path."
        }
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        "dateUpdated": "2026-01-23T14:15:14.963Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "title": "net/handshake: restore destructor on submit failure",
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    "cveId": "CVE-2025-71148",
    "datePublished": "2026-01-23T14:15:14.963Z",
    "dateReserved": "2026-01-13T15:30:19.662Z",
    "dateUpdated": "2026-01-23T14:15:14.963Z",
    "state": "PUBLISHED"
  },
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}

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-C3VJ-7CM3-P3XG

CVE-2025-71148 (GCVE-0-2025-71148)

Tags

Sightings

Nomenclature