SB20251001101 - Incorrect calculation in Linux kernel iommu amd driver
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001101
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) Incorrect calculation (CVE-ID: CVE-2023-53501)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect calculation within the put_pasid_state() function in drivers/iommu/amd/iommu_v2.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/13ed255248dfbbb7f23f9170c7a537fb9ca22c73
- https://git.kernel.org/stable/c/534103bcd52ca9c1fecbc70e717b4a538dc4ded8
- https://git.kernel.org/stable/c/98d86bf32187db27946ca817c2467a5f2f7aa02f
- https://git.kernel.org/stable/c/9ccc51be3126b25cfe9351dbffde946c925cc28a
- https://git.kernel.org/stable/c/a50d60b8f2aff46dd7c7edb4a5835cdc4d432c22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.132