FKIE_CVE-2024-41008

Vulnerability from fkie_nvd - Published: 2024-07-16 08:15 - Updated: 2025-10-07 19:44
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: change vm->task_info handling This patch changes the handling and lifecycle of vm->task_info object. The major changes are: - vm->task_info is a dynamically allocated ptr now, and its uasge is reference counted. - introducing two new helper funcs for task_info lifecycle management - amdgpu_vm_get_task_info: reference counts up task_info before returning this info - amdgpu_vm_put_task_info: reference counts down task_info - last put to task_info() frees task_info from the vm. This patch also does logistical changes required for existing usage of vm->task_info. V2: Do not block all the prints when task_info not found (Felix) V3: Fixed review comments from Felix - Fix wrong indentation - No debug message for -ENOMEM - Add NULL check for task_info - Do not duplicate the debug messages (ti vs no ti) - Get first reference of task_info in vm_init(), put last in vm_fini() V4: Fixed review comments from Felix - fix double reference increment in create_task_info - change amdgpu_vm_get_task_info_pasid - additional changes in amdgpu_gem.c while porting
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b8f67b9ddf4f8fe6dd536590712b5912ad78f99cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b8f67b9ddf4f8fe6dd536590712b5912ad78f99cPatch
Impacted products
Vendor Product Version
linux linux_kernel *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E6BD4683-0AAB-43D1-B079-A0C20DE05CF6",
              "versionEndExcluding": "6.9",
              "versionStartIncluding": "4.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: change vm-\u003etask_info handling\n\nThis patch changes the handling and lifecycle of vm-\u003etask_info object.\nThe major changes are:\n- vm-\u003etask_info is a dynamically allocated ptr now, and its uasge is\n  reference counted.\n- introducing two new helper funcs for task_info lifecycle management\n    - amdgpu_vm_get_task_info: reference counts up task_info before\n      returning this info\n    - amdgpu_vm_put_task_info: reference counts down task_info\n- last put to task_info() frees task_info from the vm.\n\nThis patch also does logistical changes required for existing usage\nof vm-\u003etask_info.\n\nV2: Do not block all the prints when task_info not found (Felix)\n\nV3: Fixed review comments from Felix\n   - Fix wrong indentation\n   - No debug message for -ENOMEM\n   - Add NULL check for task_info\n   - Do not duplicate the debug messages (ti vs no ti)\n   - Get first reference of task_info in vm_init(), put last\n     in vm_fini()\n\nV4: Fixed review comments from Felix\n   - fix double reference increment in create_task_info\n   - change amdgpu_vm_get_task_info_pasid\n   - additional changes in amdgpu_gem.c while porting"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amdgpu: cambiar el manejo de vm-\u0026gt;task_info Este parche cambia el manejo y el ciclo de vida del objeto vm-\u0026gt;task_info. Los cambios principales son: - vm-\u0026gt;task_info ahora es un ptr asignado din\u00e1micamente y su uso se cuenta por referencia. - presentamos dos nuevas funciones auxiliares para la gesti\u00f3n del ciclo de vida de task_info - amdgpu_vm_get_task_info: la referencia cuenta task_info antes de devolver esta informaci\u00f3n - amdgpu_vm_put_task_info: la referencia cuenta atr\u00e1s task_info - la \u00faltima entrada en task_info() libera task_info de la m\u00e1quina virtual. Este parche tambi\u00e9n realiza cambios log\u00edsticos necesarios para el uso existente de vm-\u0026gt;task_info. V2: No bloquear todas las impresiones cuando no se encuentra task_info (Felix) V3: Se corrigieron los comentarios de revisi\u00f3n de Felix - Se corrigi\u00f3 la sangr\u00eda incorrecta - No hay mensaje de depuraci\u00f3n para -ENOMEM - Agregar verificaci\u00f3n NULL para task_info - No se duplican los mensajes de depuraci\u00f3n (ti vs no ti) - Obtenga la primera referencia de task_info en vm_init(), col\u00f3quela \u00faltima en vm_fini() V4: Se corrigieron los comentarios de revisi\u00f3n de Felix - se corrigi\u00f3 el incremento de doble referencia en create_task_info - se cambi\u00f3 amdgpu_vm_get_task_info_pasid - cambios adicionales en amdgpu_gem.c durante la portabilidad"
    }
  ],
  "id": "CVE-2024-41008",
  "lastModified": "2025-10-07T19:44:45.210",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-07-16T08:15:02.240",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b8f67b9ddf4f8fe6dd536590712b5912ad78f99c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b8f67b9ddf4f8fe6dd536590712b5912ad78f99c"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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