nvme-pci: ensure we're polling a polled queue

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Summary

CVECVE-2026-31523
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-22 14:16:52 UTC
Updated2026-04-28 18:09:51 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: nvme-pci: ensure we're polling a polled queue A user can change the polled queue count at run time. There's a brief window during a reset where a hipri task may try to poll that queue before the block layer has updated the queue maps, which would race with the now interrupt driven queue and may cause double completions.

Risk And Classification

Primary CVSS: v3.1 4.7 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000240000 probability, percentile 0.067930000 (date 2026-04-26)

Problem Types: CWE-367

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 4b04cc6a8f86c4842314def22332de1f15de8523 965e2c943f065122f14282a88d70a8a92e12a4da git Not specified
CNA Linux Linux affected 4b04cc6a8f86c4842314def22332de1f15de8523 ba167d5982e2eb6ff9356d409eca592ce99555da git Not specified
CNA Linux Linux affected 4b04cc6a8f86c4842314def22332de1f15de8523 0685dd9cb855ab77fcf3577b4702ba1d6df1c98d git Not specified
CNA Linux Linux affected 4b04cc6a8f86c4842314def22332de1f15de8523 6f12734c4b619f923a4df0b1a46b8098b187d324 git Not specified
CNA Linux Linux affected 4b04cc6a8f86c4842314def22332de1f15de8523 acbc72dd1a09df53cafcf577259f4678be6afd6d git Not specified
CNA Linux Linux affected 4b04cc6a8f86c4842314def22332de1f15de8523 b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3 git Not specified
CNA Linux Linux affected 4b04cc6a8f86c4842314def22332de1f15de8523 b222680ba55e018426c4535067a008f1d81a5d21 git Not specified
CNA Linux Linux affected 4b04cc6a8f86c4842314def22332de1f15de8523 166e31d7dbf6aa44829b98aa446bda5c9580f12a git Not specified
CNA Linux Linux affected 5.0 Not specified
CNA Linux Linux unaffected 5.0 semver Not specified
CNA Linux Linux unaffected 5.10.253 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.168 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.131 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.80 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.21 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.11 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/0685dd9cb855ab77fcf3577b4702ba1d6df1c98d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ba167d5982e2eb6ff9356d409eca592ce99555da 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/acbc72dd1a09df53cafcf577259f4678be6afd6d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/965e2c943f065122f14282a88d70a8a92e12a4da 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b222680ba55e018426c4535067a008f1d81a5d21 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/166e31d7dbf6aa44829b98aa446bda5c9580f12a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6f12734c4b619f923a4df0b1a46b8098b187d324 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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