Vulnerability-Lookup

GHSA-3JXV-H97Q-RQ3X

Vulnerability from github – Published: 2026-06-24 09:30 – Updated: 2026-06-24 09:30

Details

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

af_unix: Reject SIOCATMARK on non-stream sockets

SIOCATMARK reports whether the receive queue is at the urgent mark for MSG_OOB.

In AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets. SOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(), so they should not support SIOCATMARK either.

Return -EOPNOTSUPP for non-stream sockets before checking the receive queue.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-52928"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T08:16:22Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Reject SIOCATMARK on non-stream sockets\n\nSIOCATMARK reports whether the receive queue is at the urgent mark for\nMSG_OOB.\n\nIn AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets.\nSOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(),\nso they should not support SIOCATMARK either.\n\nReturn -EOPNOTSUPP for non-stream sockets before checking the receive\nqueue.",
  "id": "GHSA-3jxv-h97q-rq3x",
  "modified": "2026-06-24T09:30:48Z",
  "published": "2026-06-24T09:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52928"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3147ddf5a41c20c45c2eb69e00b62f10f822056a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/645b1ed3259af38b7814242a420bc2081bdd1eb6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c34c41446acf6c0d13b5b06c809be11e0f7f2729"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d119775f2bad827edc28071c061fdd4a91f889a5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-52928 (GCVE-0-2026-52928)

Vulnerability from cvelistv5 – Published: 2026-06-24 07:14 – Updated: 2026-06-24 07:14

Title

af_unix: Reject SIOCATMARK on non-stream sockets

Summary

In the Linux kernel, the following vulnerability has been resolved: af_unix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSG_OOB. In AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets. SOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(), so they should not support SIOCATMARK either. Return -EOPNOTSUPP for non-stream sockets before checking the receive queue.

Severity

No CVSS data available.

Assigner

Linux

References

4 references

URL	Tags
https://git.kernel.org/stable/c/645b1ed3259af38b7…
https://git.kernel.org/stable/c/c34c41446acf6c0d1…
https://git.kernel.org/stable/c/3147ddf5a41c20c45…
https://git.kernel.org/stable/c/d119775f2bad827ed…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 314001f0bf927015e459c9d387d62a231fe93af3 , < 645b1ed3259af38b7814242a420bc2081bdd1eb6 (git) Affected: 314001f0bf927015e459c9d387d62a231fe93af3 , < c34c41446acf6c0d13b5b06c809be11e0f7f2729 (git) Affected: 314001f0bf927015e459c9d387d62a231fe93af3 , < 3147ddf5a41c20c45c2eb69e00b62f10f822056a (git) Affected: 314001f0bf927015e459c9d387d62a231fe93af3 , < d119775f2bad827edc28071c061fdd4a91f889a5 (git)
Linux	Linux	Affected: 5.15 Unaffected: 0 , < 5.15 (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/unix/af_unix.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "314001f0bf927015e459c9d387d62a231fe93af3",
              "versionType": "git"
            },
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              "version": "314001f0bf927015e459c9d387d62a231fe93af3",
              "versionType": "git"
            },
            {
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          "vendor": "Linux",
          "versions": [
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              "version": "5.15"
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              "status": "unaffected",
              "version": "0",
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            },
            {
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              "status": "unaffected",
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            },
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              "status": "unaffected",
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              "versionType": "semver"
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              "version": "7.0.7",
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                  "versionStartIncluding": "5.15",
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          "url": "https://git.kernel.org/stable/c/d119775f2bad827edc28071c061fdd4a91f889a5"
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    "datePublished": "2026-06-24T07:14:21.367Z",
    "dateReserved": "2026-06-09T07:44:35.368Z",
    "dateUpdated": "2026-06-24T07:14:21.367Z",
    "state": "PUBLISHED"
  },
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}

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.

Action not permitted

GHSA-3JXV-H97Q-RQ3X

CVE-2026-52928 (GCVE-0-2026-52928)

Tags

Sightings

Nomenclature