SB2024082240 - Improper locking in Linux kernel iommu intel driver
Published: August 22, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024082240
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2022-48916)
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.
References
- 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