CVE-2025-71203: Linux Kernel

High severity, CVSS 7.0. EPSS: 0.1% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: riscv: Sanitize syscall table indexing under speculation The syscall number is a user-controlled value used to index into the syscall table. Use array_index_nospec() to clamp this value after the bounds check to prevent speculative out-of-bounds access and subsequent data leakage via cache side channels.

Affected products

• Linux Linux Kernel: from 6.4, before 6.12.70 (fixed in 6.12.70); from 6.13, before 6.18.10 (fixed in 6.18.10); version 6.19 only

Published 2026-02-14. Last modified 2026-06-17.