{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"965e2c943f065122f14282a88d70a8a92e12a4da","status":"affected","version":"4b04cc6a8f86c4842314def22332de1f15de8523","versionType":"git"},{"lessThan":"ba167d5982e2eb6ff9356d409eca592ce99555da","status":"affected","version":"4b04cc6a8f86c4842314def22332de1f15de8523","versionType":"git"},{"lessThan":"0685dd9cb855ab77fcf3577b4702ba1d6df1c98d","status":"affected","version":"4b04cc6a8f86c4842314def22332de1f15de8523","versionType":"git"},{"lessThan":"6f12734c4b619f923a4df0b1a46b8098b187d324","status":"affected","version":"4b04cc6a8f86c4842314def22332de1f15de8523","versionType":"git"},{"lessThan":"acbc72dd1a09df53cafcf577259f4678be6afd6d","status":"affected","version":"4b04cc6a8f86c4842314def22332de1f15de8523","versionType":"git"},{"lessThan":"b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3","status":"affected","version":"4b04cc6a8f86c4842314def22332de1f15de8523","versionType":"git"},{"lessThan":"b222680ba55e018426c4535067a008f1d81a5d21","status":"affected","version":"4b04cc6a8f86c4842314def22332de1f15de8523","versionType":"git"},{"lessThan":"166e31d7dbf6aa44829b98aa446bda5c9580f12a","status":"affected","version":"4b04cc6a8f86c4842314def22332de1f15de8523","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"5.0"},{"lessThan":"5.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.131","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cveId":"CVE-2026-31523","cwes":[],"description":"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.","epss":{"date":"2026-11-05","percentile":0.00406,"score":0.00089},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793915105879,"publishedAt":1776866077568,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/965e2c943f065122f14282a88d70a8a92e12a4da"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/ba167d5982e2eb6ff9356d409eca592ce99555da"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/0685dd9cb855ab77fcf3577b4702ba1d6df1c98d"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/6f12734c4b619f923a4df0b1a46b8098b187d324"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/acbc72dd1a09df53cafcf577259f4678be6afd6d"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/b222680ba55e018426c4535067a008f1d81a5d21"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/166e31d7dbf6aa44829b98aa446bda5c9580f12a"}],"remediation":[],"revision":"4e0981b8cc61fb9aea4657e8fe69a93aab117b0153a2ca7dc5ebf3f9cd1be558","sources":[{"modifiedAt":1793915105879,"name":"CNA: Linux","retrievedAt":1793917082675,"url":"https://www.cve.org/CVERecord?id=CVE-2026-31523"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793917103112,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-31523"}],"ssvc":{"assessedAt":1793914643406,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"nvme-pci: ensure we're polling a polled queue","updatedAt":1793917103112}