Bug 2439930 (CVE-2025-71203) - CVE-2025-71203 kernel: riscv: Sanitize syscall table indexing under speculation
Summary: CVE-2025-71203 kernel: riscv: Sanitize syscall table indexing under speculation
Keywords:
Status: NEW
Alias: CVE-2025-71203
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-14 17:03 UTC by OSIDB Bzimport
Modified: 2026-02-16 06:44 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2026-02-14 17:03:36 UTC
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.


Note You need to log in before you can comment on or make changes to this bug.