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
2026-05-06
AI Q&A
2025-10-07
EPSS Evaluated
2026-05-05
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)
Helpful Resources
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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AI Powered Q&A
Can you explain this vulnerability to me?

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.


How can this vulnerability impact me? :

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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