Bug 2402206 (CVE-2023-53664) - CVE-2023-53664 kernel: OPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate()
Summary: CVE-2023-53664 kernel: OPP: Fix potential null ptr dereference in dev_pm_opp_...
Keywords:
Status: NEW
Alias: CVE-2023-53664
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-07 16:02 UTC by OSIDB Bzimport
Modified: 2025-10-31 23:20 UTC (History)
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Description OSIDB Bzimport 2025-10-07 16:02:49 UTC 
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)
Comment 1 Jon Moroney 2025-10-07 18:39:14 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025100703-CVE-2023-53664-a38d@gregkh/T
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