{"id":"CVE-2026-31523","state":"PUBLISHED","title":"nvme-pci: ensure we're polling a polled queue","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.","publishedAt":"2026-04-22T13:54:37.568Z","updatedAt":"2026-05-11T22:10:26.646Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"965e2c943f065122f14282a88d70a8a92e12a4da","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"ba167d5982e2eb6ff9356d409eca592ce99555da","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"0685dd9cb855ab77fcf3577b4702ba1d6df1c98d","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"6f12734c4b619f923a4df0b1a46b8098b187d324","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"acbc72dd1a09df53cafcf577259f4678be6afd6d","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"b222680ba55e018426c4535067a008f1d81a5d21","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"166e31d7dbf6aa44829b98aa446bda5c9580f12a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/host/pci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.0","versionType":"semver"},{"version":"5.10.253","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.168","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.131","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.80","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.21","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.11","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/host/pci.c"]}],"references":["https://git.kernel.org/stable/c/965e2c943f065122f14282a88d70a8a92e12a4da","https://git.kernel.org/stable/c/ba167d5982e2eb6ff9356d409eca592ce99555da","https://git.kernel.org/stable/c/0685dd9cb855ab77fcf3577b4702ba1d6df1c98d","https://git.kernel.org/stable/c/6f12734c4b619f923a4df0b1a46b8098b187d324","https://git.kernel.org/stable/c/acbc72dd1a09df53cafcf577259f4678be6afd6d","https://git.kernel.org/stable/c/b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3","https://git.kernel.org/stable/c/b222680ba55e018426c4535067a008f1d81a5d21","https://git.kernel.org/stable/c/166e31d7dbf6aa44829b98aa446bda5c9580f12a"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:40.391Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/31xxx/CVE-2026-31523.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-31523","state":"PUBLISHED","datePublished":"2026-04-22T13:54:37.568Z","dateUpdated":"2026-05-11T22:10:26.646Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-03-09T15:48:24.110Z"},"containers":{"cna":{"title":"nvme-pci: ensure we're polling a polled queue","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":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"965e2c943f065122f14282a88d70a8a92e12a4da","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"ba167d5982e2eb6ff9356d409eca592ce99555da","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"0685dd9cb855ab77fcf3577b4702ba1d6df1c98d","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"6f12734c4b619f923a4df0b1a46b8098b187d324","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"acbc72dd1a09df53cafcf577259f4678be6afd6d","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"b222680ba55e018426c4535067a008f1d81a5d21","versionType":"git"},{"version":"4b04cc6a8f86c4842314def22332de1f15de8523","status":"affected","lessThan":"166e31d7dbf6aa44829b98aa446bda5c9580f12a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/host/pci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.0","versionType":"semver"},{"version":"5.10.253","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.168","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.131","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.80","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.21","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.11","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nvme/host/pci.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:10:26.646Z"},"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"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}