CVE-2023-53839

Not scored yetLast modified Jun 17, 2026

Description

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.

Metrics

No CVSS score has been published yet.

Affected software

No affected versions have been published.

Timeline

Published
Dec 9, 2025
Last modified
Jun 17, 2026
NVD status
Deferred

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CVE-2023-53839: Unscored | Vulnix