CVE-2023-53664
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-07

Last updated on: 2026-02-26

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: OPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate() "opp" pointer is dereferenced before the IS_ERR_OR_NULL() check. Fix it by removing the dereference to cache opp_table and dereference it directly where opp_table is used. This fixes the following smatch warning: drivers/opp/core.c:232 dev_pm_opp_get_required_pstate() warn: variable dereferenced before IS_ERR check 'opp' (see line 230)
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Meta Information
Published
2025-10-07
Last Modified
2026-02-26
Generated
2026-06-16
AI Q&A
2025-10-07
EPSS Evaluated
2026-06-14
NVD
CVE-2023-53664
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is a potential null pointer dereference in the Linux kernel function dev_pm_opp_get_required_pstate(). The issue occurs because the 'opp' pointer is dereferenced before it is checked for errors or null values, which can lead to a crash or unexpected behavior. The fix involved removing the premature dereference and instead dereferencing the pointer only after proper checks.

Impact Analysis

This vulnerability can cause the Linux kernel to dereference a null pointer, potentially leading to system crashes or instability. This could affect system reliability and availability, especially in environments relying on the affected kernel function.

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