CVE-2024-26943
Vulnerability from cvelistv5
Published
2024-05-01 05:18
Modified
2024-11-05 09:18
Severity ?
Summary
nouveau/dmem: handle kcalloc() allocation failure
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26943",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-07-17T14:21:43.677577Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-07-17T14:21:55.983Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:21:05.681Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/nouveau/nouveau_dmem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9acfd8b083a0",
              "status": "affected",
              "version": "249881232e14",
              "versionType": "git"
            },
            {
              "lessThan": "2a84744a037b",
              "status": "affected",
              "version": "249881232e14",
              "versionType": "git"
            },
            {
              "lessThan": "5e81773757a9",
              "status": "affected",
              "version": "249881232e14",
              "versionType": "git"
            },
            {
              "lessThan": "3e82f7383e0b",
              "status": "affected",
              "version": "249881232e14",
              "versionType": "git"
            },
            {
              "lessThan": "16e87fe23d4a",
              "status": "affected",
              "version": "249881232e14",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/nouveau/nouveau_dmem.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
            {
              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.84",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.24",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.8.*",
              "status": "unaffected",
              "version": "6.8.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.9",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnouveau/dmem: handle kcalloc() allocation failure\n\nThe kcalloc() in nouveau_dmem_evict_chunk() will return null if\nthe physical memory has run out. As a result, if we dereference\nsrc_pfns, dst_pfns or dma_addrs, the null pointer dereference bugs\nwill happen.\n\nMoreover, the GPU is going away. If the kcalloc() fails, we could not\nevict all pages mapping a chunk. So this patch adds a __GFP_NOFAIL\nflag in kcalloc().\n\nFinally, as there is no need to have physically contiguous memory,\nthis patch switches kcalloc() to kvcalloc() in order to avoid\nfailing allocations."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-05T09:18:38.191Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2"
        },
        {
          "url": "https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d"
        },
        {
          "url": "https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2"
        },
        {
          "url": "https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee"
        },
        {
          "url": "https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b"
        }
      ],
      "title": "nouveau/dmem: handle kcalloc() allocation failure",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26943",
    "datePublished": "2024-05-01T05:18:00.713Z",
    "dateReserved": "2024-02-19T14:20:24.197Z",
    "dateUpdated": "2024-11-05T09:18:38.191Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26943\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-05-01T06:15:09.877\",\"lastModified\":\"2024-05-01T13:02:20.750\",\"vulnStatus\":\"Awaiting Analysis\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnouveau/dmem: handle kcalloc() allocation failure\\n\\nThe kcalloc() in nouveau_dmem_evict_chunk() will return null if\\nthe physical memory has run out. As a result, if we dereference\\nsrc_pfns, dst_pfns or dma_addrs, the null pointer dereference bugs\\nwill happen.\\n\\nMoreover, the GPU is going away. If the kcalloc() fails, we could not\\nevict all pages mapping a chunk. So this patch adds a __GFP_NOFAIL\\nflag in kcalloc().\\n\\nFinally, as there is no need to have physically contiguous memory,\\nthis patch switches kcalloc() to kvcalloc() in order to avoid\\nfailing allocations.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nouveau/dmem: maneja el error de asignaci\u00f3n de kcalloc() El kcalloc() en nouveau_dmem_evict_chunk() devolver\u00e1 nulo si la memoria f\u00edsica se ha agotado. Como resultado, si eliminamos la referencia a src_pfns, dst_pfns o dma_addrs, se producir\u00e1n errores de desreferenciaci\u00f3n del puntero nulo. Adem\u00e1s, la GPU est\u00e1 desapareciendo. Si kcalloc() falla, no podremos desalojar todas las p\u00e1ginas que asignan un fragmento. Entonces este parche agrega un indicador __GFP_NOFAIL en kcalloc(). Finalmente, como no es necesario tener memoria f\u00edsicamente contigua, este parche cambia kcalloc() a kvcalloc() para evitar asignaciones fallidas.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/16e87fe23d4af6df920406494ced5c0f4354567b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2a84744a037b8a511d6a9055f3defddc28ff4a4d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3e82f7383e0b82a835e6b6b06a348b2bc4e2c2ee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5e81773757a95fc298e96cfd6d4700f07b6192a2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9acfd8b083a0ffbd387566800d89f55058a68af2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading...

Loading...

Loading...
  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.