SB20250916203 - Improper locking in Linux kernel smc
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916203
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) Improper locking (CVE-ID: CVE-2023-53233)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __smc_lgr_terminate() function in net/smc/smc_core.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/13085e1b5cab8ad802904d72e6a6dae85ae0cd20
- https://git.kernel.org/stable/c/3517584cf1b35bd02f4a90267ddf9dcf17bd9c87
- https://git.kernel.org/stable/c/9708efad9ba5095b9bb7916e11a135b3bd66c071
- https://git.kernel.org/stable/c/b615238e5bc01e13dc0610febddc1ca99bab1df6
- https://git.kernel.org/stable/c/c9ca2257150272df1b8d9ebe5059197ffea6e913
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.8