Memory leak in Linux kernel - CVE-2022-50868
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120666
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2022-50868
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the mod_init() and mod_exit() functions in drivers/char/hw_random/amd-rng.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-50868
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/1199f8e02941b326c60ab71a63002b7c80e38212
- https://git.kernel.org/stable/c/2b79a5e560779b35e1164d57ae35c48b43373082
- https://git.kernel.org/stable/c/2e10ecd012ae2b2a374b34f307e9bc1e6096c03d
- https://git.kernel.org/stable/c/526c316948819d3ecd2bb20fe5e2580c51a1b760
- https://git.kernel.org/stable/c/5998e5c30e839f73e62cb29e0d9617b0d16ccba3
- https://git.kernel.org/stable/c/cb348c7908631dd9f60083a0a1542eab055d3edf
- https://git.kernel.org/stable/c/e246f5eff26055bdcb61a2cc99c50af72a19680f
- https://git.kernel.org/stable/c/ecadb5b0111ea19fc7c240bb25d424a94471eb7d
- https://git.kernel.org/stable/c/f1c97f72ffd504f49882774e2ab689d982dc7afc
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.337