{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "1d32f7696286eef9e5644eb57e79a36756274357"
            },
            {
              "fixed": "28e32ace754b57534ef0ca0fb99bcbea5b13ba2a"
            },
            {
              "fixed": "4d97a141e85a034566c33c7ed854c8a3e8a268f1"
            },
            {
              "fixed": "e09d1c6729ee4a7812128902d9274ff565f958b8"
            },
            {
              "fixed": "77b1718e39e5c9f6956fb60807326af20baf889d"
            }
          ],
          "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": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.55"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98544.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbna: prevent IOC timer rearm during teardown\n\nbna: prevent IOC timer rearm during teardown\n\nbnad_pci_remove() and the probe disable_ioceth path call\ntimer_delete_sync() for ioc_timer, sem_timer and hb_timer, but not for\niocpf_timer.  bnad_iocpf_timeout() then takes bnad-\u003ebna_lock after\nfree_netdev() has freed the struct bnad.\n\nDeleting iocpf_timer last does not fix this.  sem_timer and\niocpf_timer rearm each other: bnad_iocpf_sem_timeout() can arm\niocpf_timer, and bnad_iocpf_timeout() arms sem_timer from\nbfa_ioc_hw_sem_get() when the semaphore is busy.\ntimer_delete_sync() only waits out its own callback.\nbnad_ioceth_disable() can time out and leave that callback live.\n\nShut all four IOC timers down with timer_shutdown_sync() on both\npaths, so a later mod_timer() is ignored.\n\nThis issue was identified during our ongoing static-analysis research\nwhile reviewing kernel code.",
  "id": "CVE-2026-98544",
  "modified": "2026-10-20T02:30:25.327537294Z",
  "published": "2026-10-18T15:18:12.964Z",
  "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/28e32ace754b57534ef0ca0fb99bcbea5b13ba2a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4d97a141e85a034566c33c7ed854c8a3e8a268f1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/77b1718e39e5c9f6956fb60807326af20baf889d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e09d1c6729ee4a7812128902d9274ff565f958b8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98544.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98544"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "bna: prevent IOC timer rearm during teardown"
}