CVE-2023-53839 Affecting kernel-headers package, versions *


Severity

Recommended
medium

Based on CentOS security rating.

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  • Snyk IDSNYK-CENTOS7-KERNELHEADERS-14346783
  • published10 Dec 2025
  • disclosed9 Dec 2025

Introduced: 9 Dec 2025

NewCVE-2023-53839  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 kernel-headers.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

dccp: fix data-race around dp->dccps_mss_cache

dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket. Same thing in do_dccp_getsockopt().

Add READ_ONCE()/WRITE_ONCE() annotations, and change dccp_sendmsg() to check again dccps_mss_cache after socket is locked.

CVSS Base Scores

version 3.1