SB2025122625 - Memory leak in Linux kernel vfio driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB2025122625
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) Memory leak (CVE-ID: CVE-2023-54137)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the vfio_iommu_iova_build_caps() function in drivers/vfio/vfio_iommu_type1.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/13fd667db999bffb557c5de7adb3c14f1713dd51
- https://git.kernel.org/stable/c/1b5feb8497cdb5b9962db2700814bffbc030fb4a
- https://git.kernel.org/stable/c/ad83d83dd891244de0d07678b257dc976db7c132
- https://git.kernel.org/stable/c/cbac29a1caa49a34e131394e1f4d924a76d8b0c9
- https://git.kernel.org/stable/c/cd24e2a60af633f157d7e59c0a6dba64f131c0b1
- https://git.kernel.org/stable/c/f6f300ecc196d243c02adeb9ee0c62c677c24bfb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.53