cve-2024-44949
Vulnerability from cvelistv5
Published
2024-09-04 18:35
Modified
2025-01-24 16:01
Severity ?
Summary
parisc: fix a possible DMA corruption
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/00baca74fb5879e5f9034b6156671301f500f8ee
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/533de2f470baac40d3bf622fe631f15231a03c9fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/642a0b7453daff0295310774016fcb56d1f5bc7fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7ae04ba36b381bffe2471eff3a93edced843240fPatch
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

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              "content": {
                "id": "CVE-2024-44949",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T17:40:26.389987Z",
                "version": "2.0.3"
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              "type": "ssvc"
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        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-12T17:33:37.283Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/parisc/Kconfig",
            "arch/parisc/include/asm/cache.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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          "programFiles": [
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            "arch/parisc/include/asm/cache.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.119",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nparisc: fix a possible DMA corruption\n\nARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be\npossible that two unrelated 16-byte allocations share a cache line. If\none of these allocations is written using DMA and the other is written\nusing cached write, the value that was written with DMA may be\ncorrupted.\n\nThis commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 -\nthat\u0027s the largest possible cache line size.\n\nAs different parisc microarchitectures have different cache line size, we\ndefine arch_slab_minalign(), cache_line_size() and\ndma_get_cache_alignment() so that the kernel may tune slab cache\nparameters dynamically, based on the detected cache line size."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-01-24T16:01:30.995Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/533de2f470baac40d3bf622fe631f15231a03c9f"
        },
        {
          "url": "https://git.kernel.org/stable/c/7ae04ba36b381bffe2471eff3a93edced843240f"
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      ],
      "title": "parisc: fix a possible DMA corruption",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-44949",
    "datePublished": "2024-09-04T18:35:49.788Z",
    "dateReserved": "2024-08-21T05:34:56.665Z",
    "dateUpdated": "2025-01-24T16:01:30.995Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-44949\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-09-04T19:15:30.040\",\"lastModified\":\"2025-01-24T16:15:36.763\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nparisc: fix a possible DMA corruption\\n\\nARCH_DMA_MINALIGN was defined as 16 - this is too small - it may be\\npossible that two unrelated 16-byte allocations share a cache line. If\\none of these allocations is written using DMA and the other is written\\nusing cached write, the value that was written with DMA may be\\ncorrupted.\\n\\nThis commit changes ARCH_DMA_MINALIGN to be 128 on PA20 and 32 on PA1.1 -\\nthat\u0027s the largest possible cache line size.\\n\\nAs different parisc microarchitectures have different cache line size, we\\ndefine arch_slab_minalign(), cache_line_size() and\\ndma_get_cache_alignment() so that the kernel may tune slab cache\\nparameters dynamically, based on the detected cache line size.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: parisc: se corrige una posible corrupci\u00f3n de DMA ARCH_DMA_MINALIGN se defini\u00f3 como 16 - esto es demasiado peque\u00f1o - puede ser posible que dos asignaciones de 16 bytes no relacionadas compartan una l\u00ednea de cach\u00e9. Si una de estas asignaciones se escribe usando DMA y la otra se escribe usando escritura en cach\u00e9, el valor que se escribi\u00f3 con DMA puede estar da\u00f1ado. Esta confirmaci\u00f3n cambia ARCH_DMA_MINALIGN a 128 en PA20 y 32 en PA1.1 - ese es el tama\u00f1o de l\u00ednea de cach\u00e9 m\u00e1s grande posible. Como las diferentes microarquitecturas de parisc tienen diferentes tama\u00f1os de l\u00ednea de cach\u00e9, definimos arch_slab_minalign(), cache_line_size() y dma_get_cache_alignment() para que el kernel pueda ajustar los par\u00e1metros de cach\u00e9 de losa din\u00e1micamente, seg\u00fan el tama\u00f1o de l\u00ednea de cach\u00e9 detectado.\"}],\"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\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.6.46\",\"matchCriteriaId\":\"84C35A98-08C9-4674-8AC8-9CC0757B7699\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.5\",\"matchCriteriaId\":\"D074AE50-4A5E-499C-A2FD-75FD60DEA560\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"8B3CE743-2126-47A3-8B7C-822B502CF119\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/00baca74fb5879e5f9034b6156671301f500f8ee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/533de2f470baac40d3bf622fe631f15231a03c9f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/642a0b7453daff0295310774016fcb56d1f5bc7f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/7ae04ba36b381bffe2471eff3a93edced843240f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
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