Bug 2426047 (CVE-2022-50872)

Summary: CVE-2022-50872 kernel: Linux kernel (ARM OMAP2+): Memory leak in realtime_counter_init()
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 flaw was found in the Linux kernel. The `realtime_counter_init()` function within the ARM OMAP2+ component fails to release the `sys_clk` resource after it has been allocated. This memory leak can be exploited by a local user, potentially leading to resource exhaustion and a Denial of Service (DoS).
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Description OSIDB Bzimport 2025-12-30 13:04:44 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ARM: OMAP2+: Fix memory leak in realtime_counter_init()

The "sys_clk" resource is malloced by clk_get(),
it is not released when the function return.
Comment 1 Alexander B 2025-12-31 13:01:40 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123051-CVE-2022-50872-0110@gregkh/T