Memory leak in Linux kernel - CVE-2022-48904
Published: August 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU96403
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-2022-48904
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 v1_free_pgtable() function in drivers/iommu/amd/io_pgtable.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-48904
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/378e2fe1eb58d5c2ed55c8fe5e11f9db5033cdd6
- https://git.kernel.org/stable/c/c78627f757e37c2cf386b59c700c4e1574988597
- https://git.kernel.org/stable/c/6b0b2d9a6a308bcd9300c2d83000a82812c56cea
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.27
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17