CVE-2026-98727

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-98727", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.366Z", "datePublished": "2026-10-18T15:47:04.645Z", "dateUpdated": "2026-10-19T09:24:37.897Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:24:37.897Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-multipath: set BLK_FEAT_ZONED only after the zone info is known\n\nThe namespace head is marked zoned at allocation time based only on the\ncommand set identifier. If the zone info query reports a zero zone size,\nthe path namespace is registered without zoned limits while the head\nstill advertises the zoned capability with a zone size of zero, and\nreporting zones or writing to the head then shifts by ilog2(0).\n\nDrop the zoned feature from the head allocation and let the head limits\nrefresh stack it in from the path namespace instead."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nvme/host/multipath.c"], "versions": [{"version": "28982ad73d6a9605708631dc49a0c763cc398aa2", "lessThan": "44dc998c38fb5e153c3ed5665f1112661841c3f5", "status": "affected", "versionType": "git"}, {"version": "28982ad73d6a9605708631dc49a0c763cc398aa2", "lessThan": "2d86abd28071481a1abd87204a47325975dc821c", "status": "affected", "versionType": "git"}, {"version": "28982ad73d6a9605708631dc49a0c763cc398aa2", "lessThan": "8b85838c1fdba5ba90152693ca158aa9660c628f", "status": "affected", "versionType": "git"}, {"version": "28982ad73d6a9605708631dc49a0c763cc398aa2", "lessThan": "4a5e49ba0abb8b4328d6318c9aef0c0121f95507", "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/nvme/host/multipath.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.113", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.56", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.10", "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": "6.11", "versionEndExcluding": "6.12.113"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.56"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.2.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/44dc998c38fb5e153c3ed5665f1112661841c3f5"}, {"url": "https://git.kernel.org/stable/c/2d86abd28071481a1abd87204a47325975dc821c"}, {"url": "https://git.kernel.org/stable/c/8b85838c1fdba5ba90152693ca158aa9660c628f"}, {"url": "https://git.kernel.org/stable/c/4a5e49ba0abb8b4328d6318c9aef0c0121f95507"}], "title": "nvme-multipath: set BLK_FEAT_ZONED only after the zone info is known", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/nvme/host/multipath.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "44dc998c38fb5e153c3ed5665f1112661841c3f5", "status": "affected", "version": "28982ad73d6a9605708631dc49a0c763cc398aa2", "versionType": "git"}, {"lessThan": "2d86abd28071481a1abd87204a47325975dc821c", "status": "affected", "version": "28982ad73d6a9605708631dc49a0c763cc398aa2", "versionType": "git"}, {"lessThan": "8b85838c1fdba5ba90152693ca158aa9660c628f", "status": "affected", "version": "28982ad73d6a9605708631dc49a0c763cc398aa2", "versionType": "git"}, {"lessThan": "4a5e49ba0abb8b4328d6318c9aef0c0121f95507", "status": "affected", "version": "28982ad73d6a9605708631dc49a0c763cc398aa2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/nvme/host/multipath.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.113", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.56", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.10", "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\nnvme-multipath: set BLK_FEAT_ZONED only after the zone info is known\n\nThe namespace head is marked zoned at allocation time based only on the\ncommand set identifier. If the zone info query reports a zero zone size,\nthe path namespace is registered without zoned limits while the head\nstill advertises the zoned capability with a zone size of zero, and\nreporting zones or writing to the head then shifts by ilog2(0).\n\nDrop the zoned feature from the head allocation and let the head limits\nrefresh stack it in from the path namespace instead."}], "id": "CVE-2026-98727", "lastModified": "2026-10-19T10:19:36.873", "metrics": {}, "published": "2026-10-18T16:17:26.333", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2d86abd28071481a1abd87204a47325975dc821c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/44dc998c38fb5e153c3ed5665f1112661841c3f5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4a5e49ba0abb8b4328d6318c9aef0c0121f95507"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8b85838c1fdba5ba90152693ca158aa9660c628f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: nvme-multipath: set BLK_FEAT_ZONED only after the zone info is known", "id": "2555153", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2555153"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-1335", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnvme-multipath: set BLK_FEAT_ZONED only after the zone info is known\nThe namespace head is marked zoned at allocation time based only on the\ncommand set identifier. If the zone info query reports a zero zone size,\nthe path namespace is registered without zoned limits while the head\nstill advertises the zoned capability with a zone size of zero, and\nreporting zones or writing to the head then shifts by ilog2(0).\nDrop the zoned feature from the head allocation and let the head limits\nrefresh stack it in from the path namespace instead.", "A flaw was found in the Linux kernel's NVMe (Non-Volatile Memory Express) multipath subsystem. The multipath driver inappropriately marks a storage device as supporting zoned storage before confirming its zone configuration. When a device reports a zone size of zero, subsequent read or write operations attempt an invalid mathematical shift calculation. A local user interacting with the affected storage device can exploit this flaw to crash the system, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-98727", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "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": "Fix deferred", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-10-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-98727\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-98727\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98727.mbox"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[28982ad73d6a9605708631dc49a0c763cc398aa2,44dc998c38fb5e153c3ed5665f1112661841c3f5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[28982ad73d6a9605708631dc49a0c763cc398aa2,2d86abd28071481a1abd87204a47325975dc821c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[28982ad73d6a9605708631dc49a0c763cc398aa2,8b85838c1fdba5ba90152693ca158aa9660c628f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[28982ad73d6a9605708631dc49a0c763cc398aa2,4a5e49ba0abb8b4328d6318c9aef0c0121f95507)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.11"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.11)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.113,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.56,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.10,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-18T23:00:12.908439+00:00", "updated": "2026-10-23T23:00:13.550906+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}