Vulnerability-Lookup

GHSA-XJ9R-76P8-PXQW

Vulnerability from github – Published: 2026-09-16 12:30 – Updated: 2026-09-16 12:30

Details

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

KVM: s390: Fix memory leak in guest debug handling

bp_data is freed only for the error case by kfree(bp_data). Every successful KVM_SET_GUEST_DEBUG will leak bp_data.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89925"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-16T11:17:01Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: s390: Fix memory leak in guest debug handling\n\nbp_data is freed only for the error case by kfree(bp_data).\nEvery successful KVM_SET_GUEST_DEBUG will leak bp_data.",
  "id": "GHSA-xj9r-76p8-pxqw",
  "modified": "2026-09-16T12:30:41Z",
  "published": "2026-09-16T12:30:41Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89925"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/121ea1de927c8b9bfdf53c31cad27b86d5de0293"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39e7cebb889839b5762c9ad22e2d715b5883b288"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/44bf3792c10f4bb3de507391f1837e020d92eaa2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/581be9f6085834188cef1ad2f07babf3b421e409"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/58b1b729a9f90c80b508fc3e2174cbc0ee50859e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5940418e4232a2ff1d30ba12e0d213dbf48f0a83"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9071f75cbde3bf46119cb28e92cfbef830c4bf97"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc2034c431adcbaabf5f8a01912358f07355349e"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-89925 (GCVE-0-2026-89925)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:32 – Updated: 2026-09-16 10:32

Title

KVM: s390: Fix memory leak in guest debug handling

Summary

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: Fix memory leak in guest debug handling bp_data is freed only for the error case by kfree(bp_data). Every successful KVM_SET_GUEST_DEBUG will leak bp_data.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/39e7cebb889839b57…
https://git.kernel.org/stable/c/58b1b729a9f90c80b…
https://git.kernel.org/stable/c/9071f75cbde3bf461…
https://git.kernel.org/stable/c/5940418e4232a2ff1…
https://git.kernel.org/stable/c/fc2034c431adcbaab…
https://git.kernel.org/stable/c/44bf3792c10f4bb3d…
https://git.kernel.org/stable/c/581be9f6085834188…
https://git.kernel.org/stable/c/121ea1de927c8b9bf…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 27291e2165b6de70c476b7b675308113edd69a60 , < 39e7cebb889839b5762c9ad22e2d715b5883b288 (git) Affected: 27291e2165b6de70c476b7b675308113edd69a60 , < 58b1b729a9f90c80b508fc3e2174cbc0ee50859e (git) Affected: 27291e2165b6de70c476b7b675308113edd69a60 , < 9071f75cbde3bf46119cb28e92cfbef830c4bf97 (git) Affected: 27291e2165b6de70c476b7b675308113edd69a60 , < 5940418e4232a2ff1d30ba12e0d213dbf48f0a83 (git) Affected: 27291e2165b6de70c476b7b675308113edd69a60 , < fc2034c431adcbaabf5f8a01912358f07355349e (git) Affected: 27291e2165b6de70c476b7b675308113edd69a60 , < 44bf3792c10f4bb3de507391f1837e020d92eaa2 (git) Affected: 27291e2165b6de70c476b7b675308113edd69a60 , < 581be9f6085834188cef1ad2f07babf3b421e409 (git) Affected: 27291e2165b6de70c476b7b675308113edd69a60 , < 121ea1de927c8b9bfdf53c31cad27b86d5de0293 (git)
Linux	Linux	Affected: 3.16 Unaffected: 0 , < 3.16 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.51 , ≤ 6.18.* (semver) Unaffected: 7.2.5 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/s390/kvm/guestdbg.c"
          ],
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          "vendor": "Linux",
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              "status": "affected",
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          ],
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          "vendor": "Linux",
          "versions": [
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              "version": "3.16"
            },
            {
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver"
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.18.51",
              "versionType": "semver"
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              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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        }
      ],
      "providerMetadata": {
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    "dateReserved": "2026-09-11T19:38:34.775Z",
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    "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.
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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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-XJ9R-76P8-PXQW

CVE-2026-89925 (GCVE-0-2026-89925)

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