Bug 2464347 (CVE-2026-31785) - CVE-2026-31785 kernel: drm/xe/xe_pagefault: Disallow writes to read-only VMAs
Summary: CVE-2026-31785 kernel: drm/xe/xe_pagefault: Disallow writes to read-only VMAs
Keywords:
Status: NEW
Alias: CVE-2026-31785
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-01 15:01 UTC by OSIDB Bzimport
Modified: 2026-05-01 23:53 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-05-01 15:01:29 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/xe/xe_pagefault: Disallow writes to read-only VMAs

The page fault handler should reject write/atomic access to read only
VMAs.  Add code to handle this in xe_pagefault_service after the VMA
lookup.

v2:
- Apply max line length (Matthew)

(cherry picked from commit 714ee6754ac5fa3dc078856a196a6b124cd797a0)
Comment 1 Keith Grant 2026-05-01 23:51:45 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050152-CVE-2026-31785-e014@gregkh/T
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