#VU96436 Improper locking in Linux kernel - CVE-2022-48916
Published: August 22, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU96436
Vulnerability risk: Low
CVSSv4.0: 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-2022-48916
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the dmar_insert_one_dev_info() function in drivers/iommu/intel/iommu.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/2aaa085bd012a83be7104356301828585a2253ed
- https://git.kernel.org/stable/c/d5ad4214d9c6c6e465c192789020a091282dfee7
- https://git.kernel.org/stable/c/b00833768e170a31af09268f7ab96aecfcca9623
- 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