{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "5b435de0d786869c95d1962121af0d7df2542009"
            },
            {
              "fixed": "10eeb0b29fd7f52487c9ae573e8d79c210a0095d"
            },
            {
              "fixed": "74acccc928851f69184271832d690607877122af"
            },
            {
              "fixed": "050d2486e8ed2c0a23b87249ccd23e8072721391"
            },
            {
              "fixed": "856dabd5f2617efb23c043be9e1b22a9e6e97c41"
            },
            {
              "fixed": "2a4841ff0b74b495cddd31ae324e922217fc2f13"
            },
            {
              "fixed": "1edb3ddd261e973a4d577c0547e63bfa25a8170d"
            },
            {
              "fixed": "777cb6bba59e875b16a1d8897a483a5fecfcd5d2"
            },
            {
              "fixed": "1eeca1d5e0920fbdad6449768fd2d4364e714180"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.2.0"
            },
            {
              "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-2026-98196.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmsmac: fix UAF in brcms_free_timer()\n\nbrcms_free_timer() calls brcms_del_timer() which uses the non-synchronous\ncancel_delayed_work() to cancel the timer's underlying delayed work.  If\nthe work callback (_brcms_timer) is already running, cancel_delayed_work()\nreturns false without waiting, and brcms_free_timer() proceeds to kfree(t)\nwhile the callback still accesses t through container_of().\n\nAdd an explicit cancel_delayed_work_sync() after brcms_del_timer() to\nguarantee that any in-flight callback has completed before the timer\nstructure is freed.",
  "id": "CVE-2026-98196",
  "modified": "2026-10-08T02:31:01.462766667Z",
  "published": "2026-10-06T08:44:35.616Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/050d2486e8ed2c0a23b87249ccd23e8072721391"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/10eeb0b29fd7f52487c9ae573e8d79c210a0095d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1edb3ddd261e973a4d577c0547e63bfa25a8170d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1eeca1d5e0920fbdad6449768fd2d4364e714180"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a4841ff0b74b495cddd31ae324e922217fc2f13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/74acccc928851f69184271832d690607877122af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/777cb6bba59e875b16a1d8897a483a5fecfcd5d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/856dabd5f2617efb23c043be9e1b22a9e6e97c41"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98196.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98196"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "wifi: brcmsmac: fix UAF in brcms_free_timer()"
}