CVE-2026-43149 (GCVE-0-2026-43149)
Vulnerability from cvelistv5
Published
2026-05-06 11:27
Modified
2026-05-11 22:18
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean() The priv->rx_buffer and priv->tx_buffer are alloc'd together as contiguous buffers in uhdlc_init() but freed as two buffers in uhdlc_memclean(). Change the cleanup to only call dma_free_coherent() once on the whole buffer.
References
Impacted products
Vendor Product Version
Linux Linux Version: c19b6d246a35627c3a69b2fa6bdece212b48214b
Version: c19b6d246a35627c3a69b2fa6bdece212b48214b
Version: c19b6d246a35627c3a69b2fa6bdece212b48214b
Version: c19b6d246a35627c3a69b2fa6bdece212b48214b
Version: c19b6d246a35627c3a69b2fa6bdece212b48214b
Version: c19b6d246a35627c3a69b2fa6bdece212b48214b
Version: c19b6d246a35627c3a69b2fa6bdece212b48214b
Version: c19b6d246a35627c3a69b2fa6bdece212b48214b
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{
  "containers": {
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          "programFiles": [
            "drivers/net/wan/fsl_ucc_hdlc.c"
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          "vendor": "Linux",
          "versions": [
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              "version": "4.8"
            },
            {
              "lessThan": "4.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.252",
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            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.202",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.165",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
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              "version": "6.19.6",
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            },
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()\n\nThe priv-\u003erx_buffer and priv-\u003etx_buffer are alloc\u0027d together as\ncontiguous buffers in uhdlc_init() but freed as two buffers in\nuhdlc_memclean().\n\nChange the cleanup to only call dma_free_coherent() once on the whole\nbuffer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:18:42.659Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/6496fb830cbb741d831225cc4e7e5601c6e42970"
        },
        {
          "url": "https://git.kernel.org/stable/c/ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4"
        },
        {
          "url": "https://git.kernel.org/stable/c/011ae5dd84dc9f05eb9b8e1adff44252ac776e7b"
        },
        {
          "url": "https://git.kernel.org/stable/c/0f85a9655445e67bb0238cfc983d7c383b54938e"
        },
        {
          "url": "https://git.kernel.org/stable/c/84b932bc9899d43e5829e6cf088b72d73a922b2b"
        },
        {
          "url": "https://git.kernel.org/stable/c/d8a522085d09b30aba1016daf1dddac37c0f0285"
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        {
          "url": "https://git.kernel.org/stable/c/d68994e37ac3b285692559776e0279a88a3b5f8d"
        },
        {
          "url": "https://git.kernel.org/stable/c/36bd7d5deef936c4e1e3cd341598140e5c14c1d3"
        }
      ],
      "title": "net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43149",
    "datePublished": "2026-05-06T11:27:31.708Z",
    "dateReserved": "2026-05-01T14:12:55.989Z",
    "dateUpdated": "2026-05-11T22:18:42.659Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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