2400744 – (CVE-2022-50448) CVE-2022-50448 kernel: mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in

Bug 2400744 (CVE-2022-50448) - CVE-2022-50448 kernel: mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in

Summary: CVE-2022-50448 kernel: mm/uffd: fix warning without PTE_MARKER_UFFD_WP compil...

Keywords:
Status:	NEW
Alias:	CVE-2022-50448
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2025-10-01 12:04 UTC by OSIDB Bzimport
Modified:	2026-06-29 18:47 UTC (History)
CC List:	2 users (show)
Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments	(Terms of Use)

Description OSIDB Bzimport 2025-10-01 12:04:59 UTC

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

mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in

When PTE_MARKER_UFFD_WP not configured, it's still possible to reach pte
marker code and trigger an warning. Add a few CONFIG_PTE_MARKER_UFFD_WP
ifdefs to make sure the code won't be reached when not compiled in.

Comment 1 Jon Moroney 2025-10-01 21:27:38 UTC Comment hidden (spam)

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