LoongArch: KVM: Fix base address calculation in kvm_eiointc_regs_access()

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Summary

CVECVE-2026-31564
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-24 15:16:30 UTC
Updated2026-04-27 20:31:10 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

EPSS: 0.000180000 probability, percentile 0.049720000 (date 2026-04-27)

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 6.19 - All All
Operating System Linux Linux Kernel 7.0 rc1 All All
Operating System Linux Linux Kernel 7.0 rc2 All All
Operating System Linux Linux Kernel 7.0 rc3 All All
Operating System Linux Linux Kernel 7.0 rc4 All All
Operating System Linux Linux Kernel 7.0 rc5 All All
Operating System Linux Linux Kernel 7.0 rc6 All All
Operating System Linux Linux Kernel 7.0 rc7 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d3e43a1f34acbb9a814337fc5624765538e5a274 c4f0a9481cf0dd7c71a07484bc98f2570fdb3a82 git Not specified
CNA Linux Linux affected d3e43a1f34acbb9a814337fc5624765538e5a274 6bcfb7f46d667b04bd1a1169ccedf5fb699c60df git Not specified
CNA Linux Linux affected 6.19 Not specified
CNA Linux Linux unaffected 6.19 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/6bcfb7f46d667b04bd1a1169ccedf5fb699c60df 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c4f0a9481cf0dd7c71a07484bc98f2570fdb3a82 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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