SB20251001144 - Buffer overflow in Linux kernel s390 block driver
Published: October 1, 2025 Updated: October 27, 2025
Security Bulletin ID
SB20251001144
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) Buffer overflow (CVE-ID: CVE-2023-53449)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the dasd_eckd_init() function in drivers/s390/block/dasd_eckd.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/460e9bed82e49db1b823dcb4e421783854d86c40
- https://git.kernel.org/stable/c/544a552be0869231799784279d52704c4d314d33
- https://git.kernel.org/stable/c/a50e28d433acf22258f9f34831057387f04ef074
- https://git.kernel.org/stable/c/aede5230d154b6b237985ec9df7ebbd1dce96810
- https://git.kernel.org/stable/c/ee986d80acdef710a886be404308188ea11000c8
- https://git.kernel.org/stable/c/ef3a7ffc0a6f833578bc8d1dcb79d0633c7e4ec3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.16