SB20251001133 - Buffer overflow in Linux kernel iommu driver
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001133
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) Buffer overflow (CVE-ID: CVE-2023-53482)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the iommu_group_alloc() function in drivers/iommu/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/4c23124b45ee0aa895ed8d5d08871ae6b15ee336
- https://git.kernel.org/stable/c/4daa861174d56023c2068ddb03de0752f07fa199
- https://git.kernel.org/stable/c/8602fa38a63fc689eca29c8c586fac2d8a1f8739
- https://git.kernel.org/stable/c/f119ef452e2d82d912797273cb790a86f1125b3e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.99