Bug 2348205 (CVE-2022-49714)

Summary: CVE-2022-49714 kernel: irqchip/realtek-rtl: Fix refcount leak in map_interrupts
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: low    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-02-26 03:21:16 UTC 
In the Linux kernel, the following vulnerability has been resolved:

irqchip/realtek-rtl: Fix refcount leak in map_interrupts

of_find_node_by_phandle() returns a node pointer with refcount
incremented, we should use of_node_put() on it when not need anymore.
This function doesn't call of_node_put() in error path.
Call of_node_put() directly after of_property_read_u32() to cover
both normal path and error path.
Comment 1 Avinash Hanwate 2025-02-26 14:01:29 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022631-CVE-2022-49714-b926@gregkh/T
Comment 2 Avinash Hanwate 2025-02-27 16:03:22 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022631-CVE-2022-49714-b926@gregkh/T