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CVE-2025-39823

HIGH CVSS: 7.8 Published: 2025-09-16 Modified: 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: use array_index_nospec with indices that come from guest min and dest_id are guest-controlled indices. Using array_index_nospec() after the bounds checks clamps these values to mitigate speculative execution side-channels.

Affected Platforms

Linux Linux KernelDebian Debian Linux

Weakness Type

CWE-129

References