SB2025120833 - Memory leak in Linux kernel s390 crypto driver
Published: December 8, 2025 Updated: December 12, 2025
Security Bulletin ID
SB2025120833
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-2023-53746)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the vfio_ap_queue_dev_remove() function in drivers/s390/crypto/vfio_ap_drv.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/5195de1d5f66b276683240a896783f7f43c4f664
- https://git.kernel.org/stable/c/6a40fda14b4be3e38f03cc42ffd4efbc64fb3e67
- https://git.kernel.org/stable/c/7b6a02f5bf15931464c79dfd487c57f76aae3496
- https://git.kernel.org/stable/c/8f8cf767589f2131ae5d40f3758429095c701c84
- https://git.kernel.org/stable/c/aa2bff25e9bb10c935c7ffe3d5f5975bdccb1749
- https://git.kernel.org/stable/c/ee17dea3072dec0bc34399a32fa884e26342e4ea
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.177