{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-39490",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-39490"
  ],
  "published": "2024-07-10T07:14:25Z",
  "summary": "ipv6: sr: fix missing sk_buff release in seg6_input_core",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: sr: fix missing sk_buff release in seg6_input_core\n\nThe seg6_input() function is responsible for adding the SRH into a\npacket, delegating the operation to the seg6_input_core(). This function\nuses the skb_cow_head() to ensure that there is sufficient headroom in\nthe sk_buff for accommodating the link-layer header.\nIn the event that the skb_cow_header() function fails, the\nseg6_input_core() catches the error but it does not release the sk_buff,\nwhich will result in a memory leak.\n\nThis issue was introduced in commit af3b5158b89d (\"ipv6: sr: fix BUG due\nto headroom too small after SRH push\") and persists even after commit\n7a3f5b0de364 (\"netfilter: add netfilter hooks to SRv6 data plane\"),\nwhere the entire seg6_input() code was refactored to deal with netfilter\nhooks.\n\nThe proposed patch addresses the identified memory leak by requiring the\nseg6_input_core() function to release the sk_buff in the event that\nskb_cow_head() fails.",
  "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": "6.1.93",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-39490"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e8688218e38111ace457509d8f0cad75f79c1a7a"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8f1fc3b86eaea70be6abcae2e9aa7e7b99453864"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f4df8c7670a73752201cbde215254598efdf6ce8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f5fec1588642e415a3d72e02140160661b303940"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5447f9708d9e4c17a647b16a9cb29e9e02820bd9"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}