SB20240711197 - Input validation error in Linux kernel s390 crypto driver
Published: July 11, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240711197
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) Input validation error (CVE-ID: CVE-2024-26620)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the vfio_ap_mdev_filter_cdoms(), vfio_ap_mdev_filter_matrix(), assign_adapter_store(), assign_domain_store(), vfio_ap_mdev_probe_queue() and vfio_ap_on_cfg_changed() functions in drivers/s390/crypto/vfio_ap_ops.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/d6b8d034b576f406af920a7bee81606c027b24c6
- https://git.kernel.org/stable/c/c69d821197611678533fb3eb784fc823b921349a
- https://git.kernel.org/stable/c/cdd134d56138302976685e6c7bc4755450b3880e
- https://git.kernel.org/stable/c/850fb7fa8c684a4c6bf0e4b6978f4ddcc5d43d11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.76
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8