Bug 2426124 (CVE-2023-54233)

Summary: CVE-2023-54233 kernel: ASoC: SOF: avoid a NULL dereference with unsupported widgets
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 2025-12-30 13:10:45 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ASoC: SOF: avoid a NULL dereference with unsupported widgets

If an IPC4 topology contains an unsupported widget, its .module_info
field won't be set, then sof_ipc4_route_setup() will cause a kernel
Oops trying to dereference it. Add a check for such cases.
Comment 1 Alexander B 2025-12-31 07:27:12 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123031-CVE-2023-54233-1e82@gregkh/T