Bug 2402241 (CVE-2022-50539)

Summary: CVE-2022-50539 kernel: ARM: OMAP2+: omap4-common: Fix refcount leak bug
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Version: unspecifiedKeywords: Security
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OS: Linux   
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A reference leak flaw was found in the Linux kernel's OMAP4 platform code in the SRAM initialization logic. A local user on ARM OMAP4 systems can trigger this issue during system initialization when of_find_compatible_node returns a device tree node pointer with an incremented reference count that is never released. This results in a permanent reference leak preventing proper device tree node cleanup and leading to resource exhaustion or denial of service.
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Description OSIDB Bzimport 2025-10-07 16:04:58 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ARM: OMAP2+: omap4-common: Fix refcount leak bug

In omap4_sram_init(), of_find_compatible_node() will return a node
pointer with refcount incremented. We should use of_node_put() when
it is not used anymore.
Comment 1 Jon Moroney 2025-10-07 17:13:09 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100755-CVE-2022-50539-4f53@gregkh/T