SB20240531520 - NULL pointer dereference in Linux kernel iommu amd driver
Published: May 31, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240531520
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) NULL pointer dereference (CVE-ID: CVE-2021-47140)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the amd_iommu_probe_finalize() function in drivers/iommu/amd/iommu.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.