Bug 2400716 (CVE-2022-50443)

Summary: CVE-2022-50443 kernel: drm/rockchip: lvds: fix PM usage counter unbalance in poweron
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-10-01 12:03:23 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/rockchip: lvds: fix PM usage counter unbalance in poweron

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
We fix it by replacing it with the newest pm_runtime_resume_and_get
to keep usage counter balanced.
Comment 1 Jon Moroney 2025-10-01 22:51:43 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100102-CVE-2022-50443-c1d5@gregkh/T