Bug 2395864 (CVE-2023-53316) - CVE-2023-53316 kernel: drm/msm/dp: Free resources after unregistering them
Summary: CVE-2023-53316 kernel: drm/msm/dp: Free resources after unregistering them
Keywords:
Status: NEW
Alias: CVE-2023-53316
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: 2025-09-16 17:02 UTC by OSIDB Bzimport
Modified: 2025-11-26 09:50 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


Attachments (Terms of Use)

Description OSIDB Bzimport 2025-09-16 17:02:47 UTC
In the Linux kernel, the following vulnerability has been resolved:

drm/msm/dp: Free resources after unregistering them

The DP component's unbind operation walks through the submodules to
unregister and clean things up. But if the unbind happens because the DP
controller itself is being removed, all the memory for those submodules
has just been freed.

Change the order of these operations to avoid the many use-after-free
that otherwise happens in this code path.

Patchwork: https://patchwork.freedesktop.org/patch/542166/


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