Bug 2388947 (CVE-2025-38536)

Summary: CVE-2025-38536 kernel: net: airoha: fix potential use-after-free in airoha_npu_get()
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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Description OSIDB Bzimport 2025-08-16 12:03:09 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: airoha: fix potential use-after-free in airoha_npu_get()

np->name was being used after calling of_node_put(np), which
releases the node and can lead to a use-after-free bug.
Previously, of_node_put(np) was called unconditionally after
of_find_device_by_node(np), which could result in a use-after-free if
pdev is NULL.

This patch moves of_node_put(np) after the error check to ensure
the node is only released after both the error and success cases
are handled appropriately, preventing potential resource issues.
Comment 1 Vipul Nair 2025-08-18 05:19:58 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025081656-CVE-2025-38536-c669@gregkh/T