{"id":"CVE-2026-31523","title":"nvme-pci: ensure we're polling a polled queue","summary":"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…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < 965e2c943f065122f14282a88d70a8a92e12a4da","Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < ba167d5982e2eb6ff9356d409eca592ce99555da","Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < 0685dd9cb855ab77fcf3577b4702ba1d6df1c98d","Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < 6f12734c4b619f923a4df0b1a46b8098b187d324","Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < acbc72dd1a09df53cafcf577259f4678be6afd6d","Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3","Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < b222680ba55e018426c4535067a008f1d81a5d21","Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < 166e31d7dbf6aa44829b98aa446bda5c9580f12a","Linux 5.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T21:37:23.406892Z"},"published":"2026-04-22","updated":"2026-11-05","sourceUpdated":"2026-11-05T21:45:05.879Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31523","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"}],"tags":["cve.org"],"epss":0.00089,"epssPercentile":0.00402,"ingestedAt":"2026-11-05T23:41:31.976Z","slug":"CVE-2026-31523","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < 965e2c943f065122f14282a88d70a8a92e12a4da`\n- `Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < ba167d5982e2eb6ff9356d409eca592ce99555da`\n- `Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < 0685dd9cb855ab77fcf3577b4702ba1d6df1c98d`\n- `Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < 6f12734c4b619f923a4df0b1a46b8098b187d324`\n- `Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < acbc72dd1a09df53cafcf577259f4678be6afd6d`\n- `Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3`\n- `Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < b222680ba55e018426c4535067a008f1d81a5d21`\n- `Linux >= 4b04cc6a8f86c4842314def22332de1f15de8523 < 166e31d7dbf6aa44829b98aa446bda5c9580f12a`\n- `Linux 5.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}