Memory leak in Linux kernel - CVE-2022-50857
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120669
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-50857
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the rio_register_mport() function in drivers/rapidio/rio.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2022-50857
Install update from vendor's repository.
Linux kernel - addressed in versions 4.9.337, 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2
External 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
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.303
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.337
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2