{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "683703a26e4677db437a1480682851e27c7a154f"
            },
            {
              "fixed": "caf09c09e0f323015ab6777ed1bad5aa10688631"
            },
            {
              "fixed": "56b12f0cd476e4d90a0e2663a80102b388ebf78c"
            },
            {
              "fixed": "88d640efd655b10f9fa4e381caf777da1f17c2a6"
            },
            {
              "fixed": "d54a044136b129822715e8798899af540ec7a9e9"
            },
            {
              "fixed": "8a04047c6dbff2f49a561b1ff53b043f4807e855"
            },
            {
              "fixed": "530ae0a1458078c7a81fbffd9ff17d42129364d9"
            },
            {
              "fixed": "03b672eba4937ff18337049824a114012d57f202"
            },
            {
              "fixed": "439f392084f8f7f59ab9d47a9579185accefe1d8"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.31"
            },
            {
              "fixed": "5.10.271"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.222"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.189"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.158"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.54"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98419.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrop_monitor: fix out-of-bounds write in reset_per_cpu_data()\n\nIn reset_per_cpu_data(), al is computed as:\n\n    al = sizeof(struct net_dm_alert_msg);\n    al += dm_hit_limit * sizeof(struct net_dm_drop_point);\n    al += sizeof(struct nlattr);\n\n    skb = genlmsg_new(al, GFP_KERNEL);\n    ...\n    nla = nla_reserve(skb, NLA_UNSPEC, sizeof(struct net_dm_alert_msg));\n    ...\n    msg = nla_data(nla);\n    memset(msg, 0, al);\n\nBecause al includes sizeof(struct nlattr) (the 4-byte attribute header),\ngenlmsg_new() allocates al bytes of tailroom starting at nla.\nHowever, msg points to nla_data(nla), which is located\nsizeof(struct nlattr) bytes past nla. Calling memset(msg, 0, al)\ntherefore writes al bytes starting from msg, exceeding the allocated\nbuffer by sizeof(struct nlattr) (4 bytes) and corrupting\nskb_shared_info.\n\nFix this by letting al represent only the payload length, allocating\nthe skb with genlmsg_new(nla_total_size(al), GFP_KERNEL), and zeroing\nal bytes from msg.",
  "id": "CVE-2026-98419",
  "modified": "2026-10-15T02:30:24.010297410Z",
  "published": "2026-10-14T13:27:49.005Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/03b672eba4937ff18337049824a114012d57f202"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/439f392084f8f7f59ab9d47a9579185accefe1d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/530ae0a1458078c7a81fbffd9ff17d42129364d9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/56b12f0cd476e4d90a0e2663a80102b388ebf78c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88d640efd655b10f9fa4e381caf777da1f17c2a6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a04047c6dbff2f49a561b1ff53b043f4807e855"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/caf09c09e0f323015ab6777ed1bad5aa10688631"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d54a044136b129822715e8798899af540ec7a9e9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98419.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98419"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drop_monitor: fix out-of-bounds write in reset_per_cpu_data()"
}