{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c6c8fea29769d998d94fcec9b9f14d4b52b349d3"
            },
            {
              "fixed": "6e189f14d1ea28db212b9d70a02131a7ce518012"
            },
            {
              "fixed": "a1820344b180cb55af748f102bc536b5c93164db"
            },
            {
              "fixed": "6abf73589bed3f27ee240c08108feb72bed0b9c6"
            },
            {
              "fixed": "f19259395b44af67f3c274e34237c295b526b859"
            },
            {
              "fixed": "2cefa5141cab8ec1e4b24cf585958b13f2e3049d"
            },
            {
              "fixed": "85a71a81854e0e191ad0e533eabb4eff54866feb"
            },
            {
              "fixed": "b031fc97e1993d29d6c3a0e86a99140528cf31e8"
            },
            {
              "fixed": "035e1fed892d3d06002a73ff73668f618a514644"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.38"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72235.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: retrieve ethhdr after potential skb realloc on RX\n\npskb_may_pull() in batadv_interface_rx() could reallocate the buffer behind\nthe skb. Variables which were pointing to the old buffer need to be\nreassigned to avoid an use-after-free.\n\nThis was done correctly for the VLAN header but missed for the ethernet\nheader which is later used for the TT and AP isolation handling.",
  "id": "CVE-2026-72235",
  "modified": "2026-08-18T03:30:51.728605487Z",
  "published": "2026-08-15T05:54:25.136Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/035e1fed892d3d06002a73ff73668f618a514644"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2cefa5141cab8ec1e4b24cf585958b13f2e3049d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6abf73589bed3f27ee240c08108feb72bed0b9c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6e189f14d1ea28db212b9d70a02131a7ce518012"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85a71a81854e0e191ad0e533eabb4eff54866feb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a1820344b180cb55af748f102bc536b5c93164db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b031fc97e1993d29d6c3a0e86a99140528cf31e8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f19259395b44af67f3c274e34237c295b526b859"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72235.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72235"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "batman-adv: retrieve ethhdr after potential skb realloc on RX"
}