Bug 2396415 (CVE-2023-53388) - CVE-2023-53388 kernel: drm/mediatek: Clean dangling pointer on bind error path
Summary: CVE-2023-53388 kernel: drm/mediatek: Clean dangling pointer on bind error path
Keywords:
Status: NEW
Alias: CVE-2023-53388
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: 2025-09-18 14:03 UTC by OSIDB Bzimport
Modified: 2025-11-26 10:48 UTC (History)
0 users

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


Attachments (Terms of Use)

Description OSIDB Bzimport 2025-09-18 14:03:43 UTC
In the Linux kernel, the following vulnerability has been resolved:

drm/mediatek: Clean dangling pointer on bind error path

mtk_drm_bind() can fail, in which case drm_dev_put() is called,
destroying the drm_device object. However a pointer to it was still
being held in the private object, and that pointer would be passed along
to DRM in mtk_drm_sys_prepare() if a suspend were triggered at that
point, resulting in a panic. Clean the pointer when destroying the
object in the error path to prevent this from happening.


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