{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-43445",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-43445"
  ],
  "published": "2026-05-08T14:22:57Z",
  "summary": "e1000/e1000e: Fix leak in DMA error cleanup",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ne1000/e1000e: Fix leak in DMA error cleanup\n\nIf an error is encountered while mapping TX buffers, the driver should\nunmap any buffers already mapped for that skb.\n\nBecause count is incremented after a successful mapping, it will always\nmatch the correct number of unmappings needed when dma_error is reached.\nDecrementing count before the while loop in dma_error causes an\noff-by-one error. If any mapping was successful before an unsuccessful\nmapping, exactly one DMA mapping would leak.\n\nIn these commits, a faulty while condition caused an infinite loop in\ndma_error:\nCommit 03b1320dfcee (\"e1000e: remove use of skb_dma_map from e1000e\ndriver\")\nCommit 602c0554d7b0 (\"e1000: remove use of skb_dma_map from e1000 driver\")\n\nCommit c1fa347f20f1 (\"e1000/e1000e/igb/igbvf/ixgb/ixgbe: Fix tests of\nunsigned in *_tx_map()\") fixed the infinite loop, but introduced the\noff-by-one error.\n\nThis issue may still exist in the igbvf driver, but I did not address it\nin this patch.",
  "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": "6.1.167",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43445"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7eaeb778bfaa3b2a804f89321c234d59c74569db"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0606c24a745bafd1be5d66c48361638cd9cad74b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/519051c711dfd239ef6e4b28878efee400a035f9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0a1fc25deabab4efce64610e3c449485c4fa8f5f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fa5ba9867a55e640df0dc79bf0199770fb043f03"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/30e87ade8d678c25a8546cf38c0b498fa5cb27d3"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/10b5e65959e955a1c8894e0a5413944b5a70204a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e94eaef11142b01f77bf8ba4d0b59720b7858109"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}