Improper locking in Linux kernel - CVE-2023-53233
Published: September 16, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115464
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53233
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
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.
How to mitigate CVE-2023-53233
Install update from vendor's repository.
Sources
- 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