github - ghsa-79rw-jwgh-qv55

GHSA-79RW-JWGH-QV55

Vulnerability from github – Published: 2025-11-12 12:30 – Updated: 2025-11-12 12:30

Details

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

tls: wait for pending async decryptions if tls_strp_msg_hold fails

Async decryption calls tls_strp_msg_hold to create a clone of the input skb to hold references to the memory it uses. If we fail to allocate that clone, proceeding with async decryption can lead to various issues (UAF on the skb, writing into userspace memory after the recv() call has returned).

In this case, wait for all pending decryption requests.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40176"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-12T11:15:48Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntls: wait for pending async decryptions if tls_strp_msg_hold fails\n\nAsync decryption calls tls_strp_msg_hold to create a clone of the\ninput skb to hold references to the memory it uses. If we fail to\nallocate that clone, proceeding with async decryption can lead to\nvarious issues (UAF on the skb, writing into userspace memory after\nthe recv() call has returned).\n\nIn this case, wait for all pending decryption requests.",
  "id": "GHSA-79rw-jwgh-qv55",
  "modified": "2025-11-12T12:30:28Z",
  "published": "2025-11-12T12:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40176"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39dec4ea3daf77f684308576baf483b55ca7f160"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4fc109d0ab196bd943b7451276690fb6bb48c2e0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f83fd0c179e0f458e824e417f9d5ad53443f685"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b8a6ff84abbcbbc445463de58704686011edc8e1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c61d4368197d65c4809d9271f3b85325a600586a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-40176 (GCVE-0-2025-40176)

Vulnerability from cvelistv5 – Published: 2025-11-12 10:53 – Updated: 2025-12-01 06:19

Summary

In the Linux kernel, the following vulnerability has been resolved: tls: wait for pending async decryptions if tls_strp_msg_hold fails Async decryption calls tls_strp_msg_hold to create a clone of the input skb to hold references to the memory it uses. If we fail to allocate that clone, proceeding with async decryption can lead to various issues (UAF on the skb, writing into userspace memory after the recv() call has returned). In this case, wait for all pending decryption requests.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/9f83fd0c179e0f458…
	https://git.kernel.org/stable/c/c61d4368197d65c48…
	https://git.kernel.org/stable/c/39dec4ea3daf77f68…
	https://git.kernel.org/stable/c/4fc109d0ab196bd94…
	https://git.kernel.org/stable/c/b8a6ff84abbcbbc44…

Impacted products

Vendor

Product

Version

Linux

Affected: 84c61fe1a75b4255df1e1e7c054c9e6d048da417 , < 9f83fd0c179e0f458e824e417f9d5ad53443f685 (git)
Affected: 84c61fe1a75b4255df1e1e7c054c9e6d048da417 , < c61d4368197d65c4809d9271f3b85325a600586a (git)
Affected: 84c61fe1a75b4255df1e1e7c054c9e6d048da417 , < 39dec4ea3daf77f684308576baf483b55ca7f160 (git)
Affected: 84c61fe1a75b4255df1e1e7c054c9e6d048da417 , < 4fc109d0ab196bd943b7451276690fb6bb48c2e0 (git)
Affected: 84c61fe1a75b4255df1e1e7c054c9e6d048da417 , < b8a6ff84abbcbbc445463de58704686011edc8e1 (git)

Linux

Affected: 6.0
Unaffected: 0 , < 6.0 (semver)
Unaffected: 6.1.158 , ≤ 6.1.* (semver)
Unaffected: 6.6.114 , ≤ 6.6.* (semver)
Unaffected: 6.12.55 , ≤ 6.12.* (semver)
Unaffected: 6.17.5 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/tls/tls_sw.c"
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          "versions": [
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              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
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              "cpeMatch": [
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    "datePublished": "2025-11-12T10:53:50.443Z",
    "dateReserved": "2025-04-16T07:20:57.177Z",
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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-79RW-JWGH-QV55

CVE-2025-40176 (GCVE-0-2025-40176)

Tags

Sightings

Nomenclature