Bug 2395856 (CVE-2022-50343)

Summary: CVE-2022-50343 kernel: rapidio: fix possible name leaks when rio_add_device() fails
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-09-16 17:02:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

rapidio: fix possible name leaks when rio_add_device() fails

Patch series "rapidio: fix three possible memory leaks".

This patchset fixes three name leaks in error handling.
 - patch #1 fixes two name leaks while rio_add_device() fails.
 - patch #2 fixes a name leak while  rio_register_mport() fails.


This patch (of 2):

If rio_add_device() returns error, the name allocated by dev_set_name()
need be freed.  It should use put_device() to give up the reference in the
error path, so that the name can be freed in kobject_cleanup(), and the
'rdev' can be freed in rio_release_dev().
Comment 1 Keith Grant 2025-09-16 18:38:01 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091639-CVE-2022-50343-75e3@gregkh/T