Bug 2422807 (CVE-2025-68314) - CVE-2025-68314 kernel: drm/msm: make sure last_fence is always updated
Summary: CVE-2025-68314 kernel: drm/msm: make sure last_fence is always updated
Keywords:
Status: NEW
Alias: CVE-2025-68314
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: 2025-12-16 16:02 UTC by OSIDB Bzimport
Modified: 2026-06-29 18:47 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2025-12-16 16:02:59 UTC
In the Linux kernel, the following vulnerability has been resolved:

drm/msm: make sure last_fence is always updated

Update last_fence in the vm-bind path instead of kernel managed path.

last_fence is used to wait for work to finish in vm_bind contexts but not
used for kernel managed contexts.

This fixes a bug where last_fence is not waited on context close leading
to faults as resources are freed while in use.

Patchwork: https://patchwork.freedesktop.org/patch/680080/


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