Bug 2313049 (CVE-2024-46718) - CVE-2024-46718 kernel: drm/xe: Don't overmap identity VRAM mapping
Summary: CVE-2024-46718 kernel: drm/xe: Don't overmap identity VRAM mapping
Keywords:
Status: NEW
Alias: CVE-2024-46718
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2313080
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-09-18 07:21 UTC by OSIDB Bzimport
Modified: 2024-09-18 08:26 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Last Closed:
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Description OSIDB Bzimport 2024-09-18 07:21:09 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/xe: Don't overmap identity VRAM mapping

Overmapping the identity VRAM mapping is triggering hardware bugs on
certain platforms. Use 2M pages for the last unaligned (to 1G) VRAM
chunk.

v2:
 - Always use 2M pages for last chunk (Fei Yang)
 - break loop when 2M pages are used
 - Add assert for usable_size being 2M aligned
v3:
 - Fix checkpatch
Comment 1 Michal Findra 2024-09-18 08:12:58 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024091833-CVE-2024-46718-c5c7@gregkh/T
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