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Linux KernelOperating system · Linux

CVE-2026-31564

MEDIUM · 5.5 CVSS v3.1 Published 2026-04-24
Fix available
A fix is available. Upgrade to 6.19.11 or later.
See remediation →
57/100
Remediation priority · Elevated
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Fix base address calculation in kvm_eiointc_regs_access() In function kvm_eiointc_regs_access(), the register base address is caculated from array base address plus offset, the offset is absolute value from the base address. The data type of array base address is u64, it should be converted into the "void *" type and then plus the offset.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Linux KernelOperating system
Affected:>= 6.19.1, < 6.19.11= 6.19= 7.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 6.19.11 or later
Fixed in 6.19.11
Vendor patch git.kernel.org →
Recommended fix High confidence

Linux Kernel 6.19.11 or later stable release

  1. Identify systems running affected Linux kernel versions (6.19, 6.19.1 through 6.19.10, or 7.0) using 'uname -r'
  2. Plan kernel upgrade to version 6.19.11 or later, or to the latest stable kernel release
  3. Before upgrading, back up critical data and document services that depend on KVM virtualization
  4. Upgrade the kernel using your distribution's package manager (e.g., 'apt update && apt upgrade' for Debian/Ubuntu, 'yum update' for RHEL/CentOS, or 'pacman -Syu' for Arch)
  5. Reboot the system to load the new kernel
  6. Verify the new kernel version is running with 'uname -r' and confirm it is >= 6.19.11
  7. Test KVM virtual machines to ensure they function correctly after the upgrade
Caveat Point release upgrade with minimal breaking change risk; always test in non-production environment first

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,600. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-31564 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data