{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5c3a0e5535933349a5d6e6bc8b704e0611f21d3f"
            },
            {
              "fixed": "b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20"
            },
            {
              "fixed": "15dbfb37f0e1a085d48deeb8f5238e9d28127dde"
            },
            {
              "fixed": "a170d4617e8cca05a1314de61728a262ef272782"
            },
            {
              "fixed": "c74a4acf41d19f21199dec2d6c813c90d31cd02c"
            },
            {
              "fixed": "91c99b4e152023c7d458a5dedd52d2b0d7df4ce3"
            },
            {
              "fixed": "1cfa7d5f70d54cb8c7e82df739430782d1996ee1"
            },
            {
              "fixed": "0c2df865338bbf92aa45b9253e5f9b8ef2d9992f"
            },
            {
              "fixed": "0121afa52cdb88cfb4d5d7bd126a23a9100121d8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.8.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.51"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89949.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: dat: avoid unaligned fault in IP extraction\n\nIndependent of the alignment of the ARP packet in the SKB, either the\nbatadv_arp_ip_src or the batadv_arp_ip_dst will have an unaligned access\n(on HW without native unaligned read support).\n\nUse get_unaligned() to handle this properly on all architectures.",
  "id": "CVE-2026-89949",
  "modified": "2026-09-18T03:30:48.460146664Z",
  "published": "2026-09-16T10:32:34.794Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0121afa52cdb88cfb4d5d7bd126a23a9100121d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0c2df865338bbf92aa45b9253e5f9b8ef2d9992f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15dbfb37f0e1a085d48deeb8f5238e9d28127dde"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1cfa7d5f70d54cb8c7e82df739430782d1996ee1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91c99b4e152023c7d458a5dedd52d2b0d7df4ce3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a170d4617e8cca05a1314de61728a262ef272782"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1bbc694ca51adb8dbed3f3235b4fcbdb44e0e20"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c74a4acf41d19f21199dec2d6c813c90d31cd02c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89949.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89949"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "batman-adv: dat: avoid unaligned fault in IP extraction"
}