Bug 2355531 (CVE-2023-53012)

Summary: CVE-2023-53012 kernel: thermal: core: call put_device() only after device_register() fails
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: low    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-03-27 17:05:46 UTC 
In the Linux kernel, the following vulnerability has been resolved:

thermal: core: call put_device() only after device_register() fails

put_device() shouldn't be called before a prior call to
device_register(). __thermal_cooling_device_register() doesn't follow
that properly and needs fixing. Also
thermal_cooling_device_destroy_sysfs() is getting called unnecessarily
on few error paths.

Fix all this by placing the calls at the right place.

Based on initial work done by Caleb Connolly.
Comment 1 Robb Gatica 2025-03-27 19:05:56 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025032715-CVE-2023-53012-597c@gregkh/T