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CVE-2025-68190 (GCVE-0-2025-68190)

Vulnerability from cvelistv5 – Published: 2025-12-16 13:43 – Updated: 2026-05-11 21:48
VLAI
Title
drm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked()
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked() kcalloc() may fail. When WS is non-zero and allocation fails, ectx.ws remains NULL while ectx.ws_size is set, leading to a potential NULL pointer dereference in atom_get_src_int() when accessing WS entries. Return -ENOMEM on allocation failure to avoid the NULL dereference.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 35f3fb86bb0158a298d6834e7e110dcaf07f490c (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < 997e28d3d00a1d30649629515e4402612921205b (git)
Affected: d38ceaf99ed015f2a0b9af3499791bd3a3daae21 , < cc9a8e238e42c1f43b98c097995137d644b69245 (git)
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Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 6.12.58 , ≤ 6.12.* (semver)
Unaffected: 6.17.8 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdgpu/atom.c"
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked()\n\nkcalloc() may fail. When WS is non-zero and allocation fails, ectx.ws\nremains NULL while ectx.ws_size is set, leading to a potential NULL\npointer dereference in atom_get_src_int() when accessing WS entries.\n\nReturn -ENOMEM on allocation failure to avoid the NULL dereference."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:48:24.134Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
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      ],
      "title": "drm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked()",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68190",
    "datePublished": "2025-12-16T13:43:12.297Z",
    "dateReserved": "2025-12-16T13:41:40.253Z",
    "dateUpdated": "2026-05-11T21:48:24.134Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-09-19",
      "epss": "0.00197",
      "percentile": "0.09787"
    },
    "microsoft_vex": {
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      "id": "msrc_CVE-2025-68190",
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      "product_status:known_affected": "15",
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      "title": "drm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked()",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-68190.json",
      "version": "17"
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    "nvd": {
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked()\n\nkcalloc() may fail. When WS is non-zero and allocation fails, ectx.ws\nremains NULL while ectx.ws_size is set, leading to a potential NULL\npointer dereference in atom_get_src_int() when accessing WS entries.\n\nReturn -ENOMEM on allocation failure to avoid the NULL dereference."
          }
        ],
        "id": "CVE-2025-68190",
        "lastModified": "2026-06-17T09:58:42.593",
        "metrics": {},
        "published": "2025-12-16T14:15:51.677",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/35f3fb86bb0158a298d6834e7e110dcaf07f490c"
          },
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          }
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: drm/amdgpu/atom: Check kcalloc() for WS buffer in amdgpu_atom_execute_table_locked()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68190.json",
      "version": "3"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.


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