{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31523", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.110Z", "datePublished": "2026-04-22T13:54:37.568Z", "dateUpdated": "2026-04-23T15:18:41.171Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-23T15:18:41.171Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: ensure we're polling a polled queue\n\nA user can change the polled queue count at run time. There's a brief\nwindow during a reset where a hipri task may try to poll that queue\nbefore the block layer has updated the queue maps, which would race with\nthe now interrupt driven queue and may cause double completions."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nvme/host/pci.c"], "versions": [{"version": "4b04cc6a8f86c4842314def22332de1f15de8523", "lessThan": "965e2c943f065122f14282a88d70a8a92e12a4da", "status": "affected", "versionType": "git"}, {"version": "4b04cc6a8f86c4842314def22332de1f15de8523", "lessThan": "ba167d5982e2eb6ff9356d409eca592ce99555da", "status": "affected", "versionType": "git"}, {"version": "4b04cc6a8f86c4842314def22332de1f15de8523", "lessThan": "0685dd9cb855ab77fcf3577b4702ba1d6df1c98d", "status": "affected", "versionType": "git"}, {"version": "4b04cc6a8f86c4842314def22332de1f15de8523", "lessThan": "6f12734c4b619f923a4df0b1a46b8098b187d324", "status": "affected", "versionType": "git"}, {"version": "4b04cc6a8f86c4842314def22332de1f15de8523", "lessThan": "acbc72dd1a09df53cafcf577259f4678be6afd6d", "status": "affected", "versionType": "git"}, {"version": "4b04cc6a8f86c4842314def22332de1f15de8523", "lessThan": "b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3", "status": "affected", "versionType": "git"}, {"version": "4b04cc6a8f86c4842314def22332de1f15de8523", "lessThan": "b222680ba55e018426c4535067a008f1d81a5d21", "status": "affected", "versionType": "git"}, {"version": "4b04cc6a8f86c4842314def22332de1f15de8523", "lessThan": "166e31d7dbf6aa44829b98aa446bda5c9580f12a", "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/pci.c"], "versions": [{"version": "5.0", "status": "affected"}, {"version": "0", "lessThan": "5.0", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.253", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.203", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.168", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.131", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.80", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.21", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.11", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "5.0", "versionEndExcluding": "5.10.253"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "5.15.203"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.1.168"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.6.131"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.12.80"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.18.21"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "6.19.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.0", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/965e2c943f065122f14282a88d70a8a92e12a4da"}, {"url": "https://git.kernel.org/stable/c/ba167d5982e2eb6ff9356d409eca592ce99555da"}, {"url": "https://git.kernel.org/stable/c/0685dd9cb855ab77fcf3577b4702ba1d6df1c98d"}, {"url": "https://git.kernel.org/stable/c/6f12734c4b619f923a4df0b1a46b8098b187d324"}, {"url": "https://git.kernel.org/stable/c/acbc72dd1a09df53cafcf577259f4678be6afd6d"}, {"url": "https://git.kernel.org/stable/c/b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3"}, {"url": "https://git.kernel.org/stable/c/b222680ba55e018426c4535067a008f1d81a5d21"}, {"url": "https://git.kernel.org/stable/c/166e31d7dbf6aa44829b98aa446bda5c9580f12a"}], "title": "nvme-pci: ensure we're polling a polled queue", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: ensure we're polling a polled queue\n\nA user can change the polled queue count at run time. There's a brief\nwindow during a reset where a hipri task may try to poll that queue\nbefore the block layer has updated the queue maps, which would race with\nthe now interrupt driven queue and may cause double completions."}], "id": "CVE-2026-31523", "lastModified": "2026-04-23T16:17:41.280", "metrics": {}, "published": "2026-04-22T14:16:52.263", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0685dd9cb855ab77fcf3577b4702ba1d6df1c98d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/166e31d7dbf6aa44829b98aa446bda5c9580f12a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6f12734c4b619f923a4df0b1a46b8098b187d324"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/965e2c943f065122f14282a88d70a8a92e12a4da"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/acbc72dd1a09df53cafcf577259f4678be6afd6d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b222680ba55e018426c4535067a008f1d81a5d21"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ba167d5982e2eb6ff9356d409eca592ce99555da"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: nvme-pci: ensure we're polling a polled queue", "id": "2460658", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460658"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-367", "details": ["A flaw was found in the Linux kernel's Non-Volatile Memory Express (NVMe) PCI driver. A local user can trigger a race condition during a system reset by changing the polled queue count. This vulnerability allows a high-priority task to attempt to poll a queue before the system's queue maps are updated, leading to \"double completions.\" This can result in system instability or a denial of service (DoS)."], "name": "CVE-2026-31523", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-04-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31523\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31523\nhttps://lore.kernel.org/linux-cve-announce/2026042212-CVE-2026-31523-1f48@gregkh/T"], "threat_severity": "Moderate"}

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