Memory leak in Linux kernel - CVE-2022-50820
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120696
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-2022-50820
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 function in drivers/perf/arm_dmc620_pmu.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2022-50820
Install update from vendor's repository.
Linux kernel - addressed in versions 5.15.86, 6.0.16, 6.1.2, 6.2
External References
- https://git.kernel.org/stable/c/adf7c3bbcc819db6e95b6a61c9822230f0ef4778
- https://git.kernel.org/stable/c/af170afa97e50d4169cfaa7ff4ec5d3841182641
- https://git.kernel.org/stable/c/b99fbe8d949a99fe456f08c7aad421327685aa50
- https://git.kernel.org/stable/c/d9f564c966e63925aac4ba273a9319d7fb6f4b4e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86
- 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