Bug 2324874 (CVE-2024-50235)

Summary: CVE-2024-50235 kernel: wifi: cfg80211: clear wdev->cqm_config pointer on free
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: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Bug Depends On: 2325095    
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Description OSIDB Bzimport 2024-11-09 11:02:36 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: cfg80211: clear wdev->cqm_config pointer on free

When we free wdev->cqm_config when unregistering, we also
need to clear out the pointer since the same wdev/netdev
may get re-registered in another network namespace, then
destroyed later, running this code again, which results in
a double-free.
Comment 1 Avinash Hanwate 2024-11-11 05:24:17 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024110931-CVE-2024-50235-14eb@gregkh/T
Comment 2 errata-xmlrpc 2025-05-13 08:34:39 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