{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "e31a16d6f64ef0e324c6f54d5112703c3f13a9c4"
            },
            {
              "fixed": "18d5547327c202cda33ad2bbd203220c2c62c8a7"
            },
            {
              "fixed": "3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734"
            },
            {
              "fixed": "c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7"
            },
            {
              "fixed": "12c0abd4d1c1b04a7663d04ba85268bc9ad9c017"
            },
            {
              "fixed": "f33ad4e2f846e55cf4637419268f093ac9f1a765"
            },
            {
              "fixed": "a2cdb4a675ca04c4ac8cc962848082d8ce065008"
            },
            {
              "fixed": "65893c8d28f239c7ddad5a83683be193a9133e9b"
            },
            {
              "fixed": "48b2c5c628b09cf36cbeca53e0432fc2a7518be7"
            }
          ],
          "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-2026-98345.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: check IP header size in cfg80211_classify8021d()\n\nA frame that looks like IP can be transmitted, but be too short, so\nthe DS field is read incorrectly:\n\n  BUG: KMSAN: uninit-value in cfg80211_classify8021d+0x99d/0x12b0 net/wireless/util.c:1027\n   cfg80211_classify8021d+0x99d/0x12b0 net/wireless/util.c:1027\n   ieee80211_select_queue+0x37a/0x9e0 net/mac80211/wme.c:180\n   __ieee80211_subif_start_xmit+0x60f/0x1d90 net/mac80211/tx.c:4304\n   ieee80211_subif_start_xmit+0xa8/0x6d0 net/mac80211/tx.c:4538\n   ...\n   packet_sendmsg+0x9173/0xa2a0 net/packet/af_packet.c:3108\n\nUse skb_header_pointer() like the MPLS case.",
  "id": "CVE-2026-98345",
  "modified": "2026-10-08T02:30:27.434141386Z",
  "published": "2026-10-06T08:46:34.719Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12c0abd4d1c1b04a7663d04ba85268bc9ad9c017"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18d5547327c202cda33ad2bbd203220c2c62c8a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ff17ffa8d02e0e3f6b2f6e57af4aac511f5b734"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48b2c5c628b09cf36cbeca53e0432fc2a7518be7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65893c8d28f239c7ddad5a83683be193a9133e9b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a2cdb4a675ca04c4ac8cc962848082d8ce065008"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c4fbcf1e614ef0755fcc751fdfca21b0bf4e0ef7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f33ad4e2f846e55cf4637419268f093ac9f1a765"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98345.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98345"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "wifi: cfg80211: check IP header size in cfg80211_classify8021d()"
}