{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "a076a860acae77bbdcbd316541e5552e81fb1772"
            },
            {
              "fixed": "2f5e42edbd232bf705dc5d3a91e06344237e63bb"
            },
            {
              "fixed": "1093835f6aef58a831298d93e0d93f244fa07b84"
            },
            {
              "fixed": "eabf7a3d33cd9fad106d267d00cc842434de8e02"
            },
            {
              "fixed": "a57d9592714506556e30188af72dd3bdb9f647b5"
            },
            {
              "fixed": "ad34235808b63a70ca4989b7a2852923193d06ef"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.6.0"
            },
            {
              "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-2026-98218.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: atr: fix dangling adapter pointer on add failure\n\ni2c_atr_add_adapter() stores atr-\u003eadapter[chan_id] before\ni2c_add_adapter() so that the I2C bus notifier can match child clients\nduring registration. On failure the channel is freed but the slot was\nleft pointing at freed memory, which can lead to use-after-free in\ni2c_atr_del_adapter() / cleanup and also block reuse with -EEXIST.\n\nClear the slot on the i2c_add_adapter() error path before freeing chan.",
  "id": "CVE-2026-98218",
  "modified": "2026-10-08T02:30:29.292161957Z",
  "published": "2026-10-06T08:44:54.034Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1093835f6aef58a831298d93e0d93f244fa07b84"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f5e42edbd232bf705dc5d3a91e06344237e63bb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a57d9592714506556e30188af72dd3bdb9f647b5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ad34235808b63a70ca4989b7a2852923193d06ef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eabf7a3d33cd9fad106d267d00cc842434de8e02"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98218.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98218"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "i2c: atr: fix dangling adapter pointer on add failure"
}