{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-43149",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-43149"
  ],
  "published": "2026-05-06T11:29:17Z",
  "summary": "net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()",
  "details": "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->rx_buffer and priv->tx_buffer are alloc'd 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.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.165",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43149"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6496fb830cbb741d831225cc4e7e5601c6e42970"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/011ae5dd84dc9f05eb9b8e1adff44252ac776e7b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0f85a9655445e67bb0238cfc983d7c383b54938e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/84b932bc9899d43e5829e6cf088b72d73a922b2b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d8a522085d09b30aba1016daf1dddac37c0f0285"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d68994e37ac3b285692559776e0279a88a3b5f8d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/36bd7d5deef936c4e1e3cd341598140e5c14c1d3"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}