wireguard: allowedips: avoid unaligned 64-bit memory accesses

{
  "id": "a64f6a862c298f7e579cc9edc738c6ba0b994805db9e11ebfeca42118eb5dc80",
  "url": "https://osv.dev/vulnerability/CVE-2024-42247",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wireguard: allowedips: avoid unaligned 64-bit memory accesses",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wireguard: allowedips: avoid unaligned 64-bit memory accesses On the parisc platform, the kernel issues kernel warnings because swap_endian() tries to load a 128-bit IPv6 address from an unaligned memory location: Kernel: unaligned access to 0x55f4688c in wg_allowedips_insert_v6+0x2c/0x80 [wireguard] (iir 0xf3010df) Kernel: unaligned access to 0x55f46884 in wg_allowedips_insert_v6+0x38/0x80 [wireguard] (iir 0xf2010dc) Avoid such unaligned memory accesses by instead using the get_unaligned_be64() helper macro. [Jason: replace src[8] in original patch with src+8]",
    "evidence": "osv:CVE-2024-42247",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.222",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.163",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.100",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.41",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.9.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-42247",
      "aliases": [
        "CVE-2024-42247"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "e7096c131e5161fa3b8e52a650d7719d2857adfd"
                },
                {
                  "fixed": "ae630de24efb123d7199a43256396d7758f4cb75"
                },
                {
                  "fixed": "b4764f0ad3d68de8a0b847c05f427afb86dd54e6"
                },
                {
                  "fixed": "217978a29c6ceca76d3c640bf94bdf50c268d801"
                },
                {
                  "fixed": "6638a203abad35fa636d59ac47bdbc4bc100fd74"
                },
                {
                  "fixed": "2fb34bf76431e831f9863cd59adc0bd1f67b0fbf"
                },
                {
                  "fixed": "948f991c62a4018fb81d85804eeab3029c6209f8"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42247.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.6.0"
                },
                {
                  "fixed": "5.10.222"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.163"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.100"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.41"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.9.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-42247.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:28.024049019Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/217978a29c6ceca76d3c640bf94bdf50c268d801",
        "https://git.kernel.org/stable/c/2fb34bf76431e831f9863cd59adc0bd1f67b0fbf",
        "https://git.kernel.org/stable/c/6638a203abad35fa636d59ac47bdbc4bc100fd74",
        "https://git.kernel.org/stable/c/948f991c62a4018fb81d85804eeab3029c6209f8",
        "https://git.kernel.org/stable/c/ae630de24efb123d7199a43256396d7758f4cb75",
        "https://git.kernel.org/stable/c/b4764f0ad3d68de8a0b847c05f427afb86dd54e6",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42247.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-42247",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42247.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-42247",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 494580,
  "published_at": "2024-08-07T15:14:32.232+00:00"
}