{"api_version":"1","generated_at":"2026-10-20T01:18:43+00:00","cve":"CVE-2026-98544","urls":{"html":"https://cve.report/CVE-2026-98544","api":"https://cve.report/api/cve/CVE-2026-98544.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98544","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98544"},"summary":{"title":"bna: prevent IOC timer rearm during teardown","description":"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->bna_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.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:06","updated_at":"2026-10-18 16:17:06"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/77b1718e39e5c9f6956fb60807326af20baf889d","name":"https://git.kernel.org/stable/c/77b1718e39e5c9f6956fb60807326af20baf889d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e09d1c6729ee4a7812128902d9274ff565f958b8","name":"https://git.kernel.org/stable/c/e09d1c6729ee4a7812128902d9274ff565f958b8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/28e32ace754b57534ef0ca0fb99bcbea5b13ba2a","name":"https://git.kernel.org/stable/c/28e32ace754b57534ef0ca0fb99bcbea5b13ba2a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4d97a141e85a034566c33c7ed854c8a3e8a268f1","name":"https://git.kernel.org/stable/c/4d97a141e85a034566c33c7ed854c8a3e8a268f1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98544","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98544","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1d32f7696286eef9e5644eb57e79a36756274357 28e32ace754b57534ef0ca0fb99bcbea5b13ba2a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1d32f7696286eef9e5644eb57e79a36756274357 4d97a141e85a034566c33c7ed854c8a3e8a268f1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1d32f7696286eef9e5644eb57e79a36756274357 e09d1c6729ee4a7812128902d9274ff565f958b8 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1d32f7696286eef9e5644eb57e79a36756274357 77b1718e39e5c9f6956fb60807326af20baf889d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.38","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.38 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.112 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.55 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.9 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/brocade/bna/bnad.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"28e32ace754b57534ef0ca0fb99bcbea5b13ba2a","status":"affected","version":"1d32f7696286eef9e5644eb57e79a36756274357","versionType":"git"},{"lessThan":"4d97a141e85a034566c33c7ed854c8a3e8a268f1","status":"affected","version":"1d32f7696286eef9e5644eb57e79a36756274357","versionType":"git"},{"lessThan":"e09d1c6729ee4a7812128902d9274ff565f958b8","status":"affected","version":"1d32f7696286eef9e5644eb57e79a36756274357","versionType":"git"},{"lessThan":"77b1718e39e5c9f6956fb60807326af20baf889d","status":"affected","version":"1d32f7696286eef9e5644eb57e79a36756274357","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/brocade/bna/bnad.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.38"},{"lessThan":"2.6.38","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.112","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.55","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.112","versionStartIncluding":"2.6.38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.55","versionStartIncluding":"2.6.38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.9","versionStartIncluding":"2.6.38","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"2.6.38","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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->bna_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."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:21:27.508Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/28e32ace754b57534ef0ca0fb99bcbea5b13ba2a"},{"url":"https://git.kernel.org/stable/c/4d97a141e85a034566c33c7ed854c8a3e8a268f1"},{"url":"https://git.kernel.org/stable/c/e09d1c6729ee4a7812128902d9274ff565f958b8"},{"url":"https://git.kernel.org/stable/c/77b1718e39e5c9f6956fb60807326af20baf889d"}],"title":"bna: prevent IOC timer rearm during teardown","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98544","datePublished":"2026-10-18T15:18:12.964Z","dateReserved":"2026-09-25T10:25:14.356Z","dateUpdated":"2026-10-19T09:21:27.508Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:06","lastModifiedDate":"2026-10-18 16:17:06","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98544","Ordinal":"1","Title":"bna: prevent IOC timer rearm during teardown","CVE":"CVE-2026-98544","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98544","Ordinal":"1","NoteData":"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->bna_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.","Type":"Description","Title":"bna: prevent IOC timer rearm during teardown"}]}}}