2383452 – (CVE-2025-38435) CVE-2025-38435 kernel: riscv: vector: Fix context save/restore with xtheadvector

Bug 2383452 (CVE-2025-38435) - CVE-2025-38435 kernel: riscv: vector: Fix context save/restore with xtheadvector

Summary: CVE-2025-38435 kernel: riscv: vector: Fix context save/restore with xtheadvector

Keywords:
Status:	NEW
Alias:	CVE-2025-38435
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	unspecified
Severity:	unspecified
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2025-07-25 15:01 UTC by OSIDB Bzimport
Modified:	2026-06-29 18:29 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description OSIDB Bzimport 2025-07-25 15:01:33 UTC

In the Linux kernel, the following vulnerability has been resolved:

riscv: vector: Fix context save/restore with xtheadvector

Previously only v0-v7 were correctly saved/restored,
and the context of v8-v31 are damanged.
Correctly save/restore v8-v31 to avoid breaking userspace.

Comment 1 Jon Moroney 2025-07-25 18:00:37 UTC Comment hidden (spam)

This comment was flagged as spam, view the edit history to see the original text if required.

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