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CVE-2025-38366

LoongArch: KVM: Check validity of "num_cpu" from user space

HIGH
7.8
CVSS Score
Published: July 25, 2025 at 12:47 PM UTC
Updated: August 5, 2026 at 12:44 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Check validity of "num_cpu" from user space The maximum supported cpu number is EIOINTC_ROUTE_MAX_VCPUS about irqchip EIOINTC, here add validation about cpu number to avoid array pointer overflow.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.13 ≤ v < 6.15.56.13 ≤ v < 6.161ad7efa552fd5cf4e8c49fea863c5c6a5dcf9f006.16 rc16.16 rc26.16 rc3
Vendor states this is fixed in a3293b4078ee93174f70f36d3ab7618554ce6ab6 (fixed)
Vendor states this is fixed in cc8d5b209e09d3b52bca1ffe00045876842d96ae (fixed)
Vendor states this is fixed in 6.13 (unaffected)
Vendor states this is fixed in 6.15.5 (unaffected)
Vendor states this is fixed in 6.16 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a3293b4078ee93174f70f36d3ab7618554ce6ab6
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/cc8d5b209e09d3b52bca1ffe00045876842d96ae

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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