Bug 2320610 (CVE-2024-50028)

Summary: CVE-2024-50028 kernel: thermal: core: Reference count the zone in thermal_zone_get_by_id()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Bug Depends On: 2320910    
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Description OSIDB Bzimport 2024-10-21 20:03:14 UTC 
In the Linux kernel, the following vulnerability has been resolved:

thermal: core: Reference count the zone in thermal_zone_get_by_id()

There are places in the thermal netlink code where nothing prevents
the thermal zone object from going away while being accessed after it
has been returned by thermal_zone_get_by_id().

To address this, make thermal_zone_get_by_id() get a reference on the
thermal zone device object to be returned with the help of get_device(),
under thermal_list_lock, and adjust all of its callers to this change
with the help of the cleanup.h infrastructure.
Comment 1 Avinash Hanwate 2024-10-22 10:41:51 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102130-CVE-2024-50028-5655@gregkh/T
Comment 2 errata-xmlrpc 2025-05-13 08:31:10 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966