{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98409", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.347Z", "datePublished": "2026-10-14T13:27:42.984Z", "dateUpdated": "2026-10-19T09:19:03.465Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:19:03.465Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatchdog: rtd119x: Avoid division by zero\n\nclk_get_rate() could return 0. Avoid a division by zero panic."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/watchdog/rtd119x_wdt.c"], "versions": [{"version": "2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367", "lessThan": "757c721545b9ffac5c3042a0cd3685ea28af7e81", "status": "affected", "versionType": "git"}, {"version": "2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367", "lessThan": "1f22001b34984350844d629862f70934770cb796", "status": "affected", "versionType": "git"}, {"version": "2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367", "lessThan": "b4ede87765a2e58ca4f18f5f8037c4826b9cc93f", "status": "affected", "versionType": "git"}, {"version": "2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367", "lessThan": "8a12e049d517d7dee78500633f8f0e47262a67e0", "status": "affected", "versionType": "git"}, {"version": "2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367", "lessThan": "5af7d2cbd20f893def03c8310a460ade66a5d822", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/watchdog/rtd119x_wdt.c"], "versions": [{"version": "4.16", "status": "affected"}, {"version": "0", "lessThan": "4.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.158", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.112", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.54", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.8", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.6.158"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.16", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/757c721545b9ffac5c3042a0cd3685ea28af7e81"}, {"url": "https://git.kernel.org/stable/c/1f22001b34984350844d629862f70934770cb796"}, {"url": "https://git.kernel.org/stable/c/b4ede87765a2e58ca4f18f5f8037c4826b9cc93f"}, {"url": "https://git.kernel.org/stable/c/8a12e049d517d7dee78500633f8f0e47262a67e0"}, {"url": "https://git.kernel.org/stable/c/5af7d2cbd20f893def03c8310a460ade66a5d822"}], "title": "watchdog: rtd119x: Avoid division by zero", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/watchdog/rtd119x_wdt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "757c721545b9ffac5c3042a0cd3685ea28af7e81", "status": "affected", "version": "2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367", "versionType": "git"}, {"lessThan": "1f22001b34984350844d629862f70934770cb796", "status": "affected", "version": "2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367", "versionType": "git"}, {"lessThan": "b4ede87765a2e58ca4f18f5f8037c4826b9cc93f", "status": "affected", "version": "2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367", "versionType": "git"}, {"lessThan": "8a12e049d517d7dee78500633f8f0e47262a67e0", "status": "affected", "version": "2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367", "versionType": "git"}, {"lessThan": "5af7d2cbd20f893def03c8310a460ade66a5d822", "status": "affected", "version": "2bdf6acbfead7e9aa69f36ee5682d1e5c8f70367", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/watchdog/rtd119x_wdt.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.16"}, {"lessThan": "4.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.158", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.54", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatchdog: rtd119x: Avoid division by zero\n\nclk_get_rate() could return 0. Avoid a division by zero panic."}], "id": "CVE-2026-98409", "lastModified": "2026-10-19T10:18:46.090", "metrics": {}, "published": "2026-10-14T14:17:52.100", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1f22001b34984350844d629862f70934770cb796"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5af7d2cbd20f893def03c8310a460ade66a5d822"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/757c721545b9ffac5c3042a0cd3685ea28af7e81"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8a12e049d517d7dee78500633f8f0e47262a67e0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b4ede87765a2e58ca4f18f5f8037c4826b9cc93f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: watchdog: rtd119x: Avoid division by zero", "id": "2552225", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2552225"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-369", "details": ["A flaw was found in the Linux kernel's Realtek RTD119X watchdog driver. During device initialization, the driver fails to verify that the clock rate is valid before performing timeout calculations. A local user capable of triggering device probing under misconfigured clock conditions can cause a division-by-zero error, leading to a kernel panic and a Denial of Service (DoS)."], "name": "CVE-2026-98409", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98409\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98409\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98409.mbox"], "threat_severity": "Moderate"}