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Vulnerability record · CVE-2025-71203 · published 14 February 2026

CVE-2025-71203: Linux kernel vulnerability

Linux · Linux Kernel

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.

7.0 CVSS 3.1 High EPSS 0.13% · top 97.7% CWE-129 · CWE-129
7.0CVSS 3.1 base score
0.13%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/25fd7ee7bf58ac3ec7be3c9f82ceff153451946c Patch
https://git.kernel.org/stable/c/33743ec6679aa364ee19d1afbaa50593e9e6e443
https://git.kernel.org/stable/c/8b44e753795107a22ba31495686e83f4aca48f36 Patch
https://git.kernel.org/stable/c/c45848936ebdb4fcab92f8c39510db83c16d0239 Patch

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Source: NIST National Vulnerability Database (record CVE-2025-71203), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.