CVE-2023-54233
Unknown Unknown - Not Provided
Null Pointer Dereference in Linux SOF ASoC IPC4 Widget Handling

Publication date: 2025-12-30

Last updated on: 2025-12-30

Assigner: kernel.org

Description
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.
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Meta Information
Published
2025-12-30
Last Modified
2025-12-30
Generated
2026-06-16
AI Q&A
2025-12-30
EPSS Evaluated
2026-06-15
NVD
CVE-2023-54233
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux kernel *
linux linux_kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability occurs in the Linux kernel's ASoC SOF component when an IPC4 topology contains an unsupported widget. The .module_info field for such a widget is not set, and when sof_ipc4_route_setup() tries to access this field, it causes a kernel Oops due to a NULL pointer dereference. The fix involves adding a check to prevent dereferencing NULL in these cases.

Impact Analysis

This vulnerability can cause the Linux kernel to crash (kernel Oops) when processing certain audio topologies with unsupported widgets, potentially leading to system instability or denial of service.

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