Bug 2348319 (CVE-2022-49693)

Summary: CVE-2022-49693 kernel: drm/msm/mdp4: Fix refcount leak in mdp4_modeset_init_intf
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-02-26 03:25:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/msm/mdp4: Fix refcount leak in mdp4_modeset_init_intf

of_graph_get_remote_node() returns remote device node pointer with
refcount incremented, we should use of_node_put() on it
when not need anymore.
Add missing of_node_put() to avoid refcount leak.

Patchwork: https://patchwork.freedesktop.org/patch/488473/
Comment 1 Avinash Hanwate 2025-02-26 11:42:01 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022627-CVE-2022-49693-c20b@gregkh/T