CVE-2026-31523
What it is
In 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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 4.7 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Weakness
- CWE-367
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.253
- Linux Kernel < 5.15.203
- Linux Kernel < 6.1.168
- Linux Kernel < 6.6.131
- Linux Kernel < 6.12.80
- Linux Kernel < 6.18.21
- Linux Kernel < 6.19.11
- Linux Kernel 7.0
Attack profile CVSS 3.1 · 4.7
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-31523.md and follow it. Check whether this project is affected by CVE-2026-31523. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0685dd9cb855ab77fcf3577b4702ba1d6df1c98d
- https://git.kernel.org/stable/c/166e31d7dbf6aa44829b98aa446bda5c9580f12a
- https://git.kernel.org/stable/c/6f12734c4b619f923a4df0b1a46b8098b187d324
- https://git.kernel.org/stable/c/965e2c943f065122f14282a88d70a8a92e12a4da
- https://git.kernel.org/stable/c/acbc72dd1a09df53cafcf577259f4678be6afd6d
- https://git.kernel.org/stable/c/b222680ba55e018426c4535067a008f1d81a5d21
- https://git.kernel.org/stable/c/b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3
- https://git.kernel.org/stable/c/ba167d5982e2eb6ff9356d409eca592ce99555da
References
- https://git.kernel.org/stable/c/0685dd9cb855ab77fcf3577b4702ba1d6df1c98d
- https://git.kernel.org/stable/c/166e31d7dbf6aa44829b98aa446bda5c9580f12a
- https://git.kernel.org/stable/c/6f12734c4b619f923a4df0b1a46b8098b187d324
- https://git.kernel.org/stable/c/965e2c943f065122f14282a88d70a8a92e12a4da
- https://git.kernel.org/stable/c/acbc72dd1a09df53cafcf577259f4678be6afd6d
- https://git.kernel.org/stable/c/b222680ba55e018426c4535067a008f1d81a5d21
- https://git.kernel.org/stable/c/b96c7b25eb1b748f3e3b1832ebf028b0b223d7e3
- https://git.kernel.org/stable/c/ba167d5982e2eb6ff9356d409eca592ce99555da