CVE-2022-50857: rapidio: rio: fix possible name leak in rio_register_mport()

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-30 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: rapidio: rio: fix possible name leak in rio_register_mport() If device_register() 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 list_del() is called to delete the port from rio_mports.

Affected products

Linux kernel: 3.15 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/0a71344f99289250e4d5b8adbac76f444485c840
https://git.kernel.org/stable/c/117fede82e9d6ea3de30746d500eb5edc2eb8310
https://git.kernel.org/stable/c/1bbad5793f404cf218757e3beb600eca6080330f
https://git.kernel.org/stable/c/4ddbeae5f224d924cf0b12460dda88c7480aa452
https://git.kernel.org/stable/c/97d9eb45ffa67ffa112a6659953321b8f7db0065
https://git.kernel.org/stable/c/9abba4aa60874c5216fc8de7dededadc791de696
https://git.kernel.org/stable/c/a47de2fd3f88a7788be19f94ade72c2244a98045
https://git.kernel.org/stable/c/a73a626c0510d203e369aeb26c4d6ec9c75af027
https://git.kernel.org/stable/c/e92a216d16bde65d21a3227e0fb2aa0794576525

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