Bug 2298193 (CVE-2022-48852) - CVE-2022-48852 kernel: drm/vc4: hdmi: Unregister codec device on unbind
Summary: CVE-2022-48852 kernel: drm/vc4: hdmi: Unregister codec device on unbind
Keywords:
Status: NEW
Alias: CVE-2022-48852
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-07-16 13:24 UTC by OSIDB Bzimport
Modified: 2024-07-31 16:06 UTC (History)
4 users (show)

Fixed In Version: kernel 5.15.29, kernel 5.16.15, kernel 5.17
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in Unbind. On Bind, the HDMI codec device is registered but not unregistered on Unbind, leading to a device leakage.
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2024-07-16 13:24:50 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/vc4: hdmi: Unregister codec device on unbind

On bind we will register the HDMI codec device but we don't unregister
it on unbind, leading to a device leakage. Unregister our device at
unbind.
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