Bug 2356608 (CVE-2025-21934)

Summary: CVE-2025-21934 kernel: rapidio: fix an API misues when rio_add_net() fails
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: high    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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OS: Linux   
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Description OSIDB Bzimport 2025-04-01 16:02:18 UTC 
In the Linux kernel, the following vulnerability has been resolved:

rapidio: fix an API misues when rio_add_net() fails

rio_add_net() calls device_register() and fails when device_register()
fails.  Thus, put_device() should be used rather than kfree().  Add
"mport->net = NULL;" to avoid a use after free issue.
Comment 1 Robb Gatica 2025-04-02 03:56:41 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025040134-CVE-2025-21934-1a8d@gregkh/T