Vulnerability-Lookup

GHSA-3GMF-H2JG-HWV2

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-19 18:32

Details

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

drm/amdkfd: Check bounds in allocate_event_notification_slot

The valid event ids go from 0 to KFD_SIGNAL_EVENT_LIMIT

allocate_event_notification_slot has an option to specify an event id to allocate at, used by CRIU. We weren't checking the bounds on that value.

Check them.

v2: Lower bounds check is unecessary because of idr_alloc already rejecting negative numbers. Upper bounds check should be KFD_SIGNAL_EVENT_LIMIT since the signal mode mappings might not yet exist

(cherry picked from commit 6853f1f6cbbeb3f53ebbbd7286536aeb2c5d5f50)

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68259"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:14Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Check bounds in allocate_event_notification_slot\n\nThe valid event ids go from 0 to KFD_SIGNAL_EVENT_LIMIT\n\nallocate_event_notification_slot has an option to specify\nan event id to allocate at, used by CRIU. We weren\u0027t checking\nthe bounds on that value.\n\nCheck them.\n\nv2: Lower bounds check is unecessary because of idr_alloc\nalready rejecting negative numbers. Upper bounds check should\nbe KFD_SIGNAL_EVENT_LIMIT since the signal mode mappings might\nnot yet exist\n\n(cherry picked from commit 6853f1f6cbbeb3f53ebbbd7286536aeb2c5d5f50)",
  "id": "GHSA-3gmf-h2jg-hwv2",
  "modified": "2026-08-19T18:32:12Z",
  "published": "2026-08-10T15:33:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68259"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4622214f0542f64b02c250db0f9c677eeb032d9b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/50319efb865f72db45f191c8709511746d58ee0a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6884fc142b17f456caac50c14505f509bfbcd012"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85eedff5f0c4aba5a66bc37a1bd6bcecd0d77b53"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/abeeb1947d81610c65349db4d89c6151f270e136"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bb52249fbbe948875155ccd45cd8d74bf4ae747b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-68259 (GCVE-0-2026-68259)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:01 – Updated: 2026-08-19 16:32

Title

drm/amdkfd: Check bounds in allocate_event_notification_slot

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Check bounds in allocate_event_notification_slot The valid event ids go from 0 to KFD_SIGNAL_EVENT_LIMIT allocate_event_notification_slot has an option to specify an event id to allocate at, used by CRIU. We weren't checking the bounds on that value. Check them. v2: Lower bounds check is unecessary because of idr_alloc already rejecting negative numbers. Upper bounds check should be KFD_SIGNAL_EVENT_LIMIT since the signal mode mappings might not yet exist (cherry picked from commit 6853f1f6cbbeb3f53ebbbd7286536aeb2c5d5f50)

Severity

No CVSS data available.

Assigner

Linux mitre root

References

6 references

URL	Tags
https://git.kernel.org/stable/c/6884fc142b17f456c…
https://git.kernel.org/stable/c/85eedff5f0c4aba5a…
https://git.kernel.org/stable/c/4622214f0542f64b0…
https://git.kernel.org/stable/c/50319efb865f72db4…
https://git.kernel.org/stable/c/abeeb1947d81610c6…
https://git.kernel.org/stable/c/bb52249fbbe948875…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 40e8a766a761f7fdc8530347527b344fddf6f1a8 , < 6884fc142b17f456caac50c14505f509bfbcd012 (git) Affected: 40e8a766a761f7fdc8530347527b344fddf6f1a8 , < 85eedff5f0c4aba5a66bc37a1bd6bcecd0d77b53 (git) Affected: 40e8a766a761f7fdc8530347527b344fddf6f1a8 , < 4622214f0542f64b02c250db0f9c677eeb032d9b (git) Affected: 40e8a766a761f7fdc8530347527b344fddf6f1a8 , < 50319efb865f72db45f191c8709511746d58ee0a (git) Affected: 40e8a766a761f7fdc8530347527b344fddf6f1a8 , < abeeb1947d81610c65349db4d89c6151f270e136 (git) Affected: 40e8a766a761f7fdc8530347527b344fddf6f1a8 , < bb52249fbbe948875155ccd45cd8d74bf4ae747b (git)
Linux	Linux	Affected: 5.18 Unaffected: 0 , < 5.18 (semver) Unaffected: 6.1.183 , ≤ 6.1.* (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_events.c"
          ],
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              "versionType": "git"
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              "status": "affected",
              "version": "40e8a766a761f7fdc8530347527b344fddf6f1a8",
              "versionType": "git"
            }
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        {
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          "programFiles": [
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          ],
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          "versions": [
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              "status": "affected",
              "version": "5.18"
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            {
              "lessThan": "5.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Check bounds in allocate_event_notification_slot\n\nThe valid event ids go from 0 to KFD_SIGNAL_EVENT_LIMIT\n\nallocate_event_notification_slot has an option to specify\nan event id to allocate at, used by CRIU. We weren\u0027t checking\nthe bounds on that value.\n\nCheck them.\n\nv2: Lower bounds check is unecessary because of idr_alloc\nalready rejecting negative numbers. Upper bounds check should\nbe KFD_SIGNAL_EVENT_LIMIT since the signal mode mappings might\nnot yet exist\n\n(cherry picked from commit 6853f1f6cbbeb3f53ebbbd7286536aeb2c5d5f50)"
        }
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      },
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        },
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          "url": "https://git.kernel.org/stable/c/4622214f0542f64b02c250db0f9c677eeb032d9b"
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        },
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          "url": "https://git.kernel.org/stable/c/abeeb1947d81610c65349db4d89c6151f270e136"
        },
        {
          "url": "https://git.kernel.org/stable/c/bb52249fbbe948875155ccd45cd8d74bf4ae747b"
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      "title": "drm/amdkfd: Check bounds in allocate_event_notification_slot",
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    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "datePublished": "2026-08-10T12:01:33.110Z",
    "dateReserved": "2026-07-30T09:28:09.378Z",
    "dateUpdated": "2026-08-19T16:32:28.586Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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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.

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.

Action not permitted

GHSA-3GMF-H2JG-HWV2

CVE-2026-68259 (GCVE-0-2026-68259)

Tags

Sightings

Nomenclature