cve-2022-48867
Vulnerability from cvelistv5
Published
2024-08-21 06:09
Modified
2024-11-04 12:18
Severity ?
Summary
dmaengine: idxd: Prevent use after free on completion memory
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1beeec45f9ac31eba52478379f70a5fa9c2ad005Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b9e8e3fcfec625fc1c2f68f684448aeeb882625bPatch
Impacted products
Vendor Product Version
Linux Linux Version: 5.19
Show details on NVD website

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            "other": {
              "content": {
                "id": "CVE-2022-48867",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T16:05:41.653435Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:32:54.768Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma/idxd/device.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "63c14ae6c161",
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              "status": "affected",
              "version": "63c14ae6c161",
              "versionType": "git"
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        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/dma/idxd/device.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.19"
            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: idxd: Prevent use after free on completion memory\n\nOn driver unload any pending descriptors are flushed at the\ntime the interrupt is freed:\nidxd_dmaengine_drv_remove() -\u003e\n\tdrv_disable_wq() -\u003e\n\t\tidxd_wq_free_irq() -\u003e\n\t\t\tidxd_flush_pending_descs().\n\nIf there are any descriptors present that need to be flushed this\nflow triggers a \"not present\" page fault as below:\n\n BUG: unable to handle page fault for address: ff391c97c70c9040\n #PF: supervisor read access in kernel mode\n #PF: error_code(0x0000) - not-present page\n\nThe address that triggers the fault is the address of the\ndescriptor that was freed moments earlier via:\ndrv_disable_wq()-\u003eidxd_wq_free_resources()\n\nFix the use after free by freeing the descriptors after any possible\nusage. This is done after idxd_wq_reset() to ensure that the memory\nremains accessible during possible completion writes by the device."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-04T12:18:08.643Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/b9e8e3fcfec625fc1c2f68f684448aeeb882625b"
        },
        {
          "url": "https://git.kernel.org/stable/c/1beeec45f9ac31eba52478379f70a5fa9c2ad005"
        }
      ],
      "title": "dmaengine: idxd: Prevent use after free on completion memory",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-48867",
    "datePublished": "2024-08-21T06:09:57.153Z",
    "dateReserved": "2024-07-16T11:38:08.921Z",
    "dateUpdated": "2024-11-04T12:18:08.643Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-48867\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-08-21T07:15:03.860\",\"lastModified\":\"2024-09-06T14:15:33.733\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndmaengine: idxd: Prevent use after free on completion memory\\n\\nOn driver unload any pending descriptors are flushed at the\\ntime the interrupt is freed:\\nidxd_dmaengine_drv_remove() -\u003e\\n\\tdrv_disable_wq() -\u003e\\n\\t\\tidxd_wq_free_irq() -\u003e\\n\\t\\t\\tidxd_flush_pending_descs().\\n\\nIf there are any descriptors present that need to be flushed this\\nflow triggers a \\\"not present\\\" page fault as below:\\n\\n BUG: unable to handle page fault for address: ff391c97c70c9040\\n #PF: supervisor read access in kernel mode\\n #PF: error_code(0x0000) - not-present page\\n\\nThe address that triggers the fault is the address of the\\ndescriptor that was freed moments earlier via:\\ndrv_disable_wq()-\u003eidxd_wq_free_resources()\\n\\nFix the use after free by freeing the descriptors after any possible\\nusage. This is done after idxd_wq_reset() to ensure that the memory\\nremains accessible during possible completion writes by the device.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dmaengine: idxd: evita el use after free la memoria al finalizar. Al descargar el controlador, los descriptores pendientes se eliminan en el momento en que se libera la interrupci\u00f3n: idxd_dmaengine_drv_remove() -\u0026gt; drv_disable_wq() -\u0026gt; idxd_wq_free_irq () -\u0026gt; idxd_flush_pending_descs(). Si hay alg\u00fan descriptor presente que deba eliminarse, este flujo desencadena un error de p\u00e1gina \\\"no presente\\\" como se muestra a continuaci\u00f3n: ERROR: no se puede manejar el error de p\u00e1gina para la direcci\u00f3n: ff391c97c70c9040 #PF: acceso de lectura del supervisor en modo kernel #PF: error_code(0x0000 ) - p\u00e1gina no presente La direcci\u00f3n que desencadena la falla es la direcci\u00f3n del descriptor que se liber\u00f3 momentos antes a trav\u00e9s de: drv_disable_wq()-\u0026gt;idxd_wq_free_resources() Corrige el use-after-free liberando los descriptores despu\u00e9s de cualquier posible uso. Esto se hace despu\u00e9s de idxd_wq_reset() para garantizar que la memoria permanezca accesible durante posibles escrituras completas por parte del dispositivo.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.19\",\"versionEndExcluding\":\"6.1.8\",\"matchCriteriaId\":\"14893A53-0846-4D56-BC73-9FC4261FDAB2\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1beeec45f9ac31eba52478379f70a5fa9c2ad005\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b9e8e3fcfec625fc1c2f68f684448aeeb882625b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}


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