CVE-2023-53839

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A data race condition exists around dp->dccps mss cache in the Data Communication Channel Protocol (DCCP) implementation. The dccp sendmsg() function and do dccp getsockopt() read dp->dccps mss cache before acquiring the necessary socket lock. This can lead to unpredictable behavior and potential system instability. The issue is addressed by adding READ ONCE() and WRITE ONCE() annotations and re-checking dccps mss cache after the socket is locked within dccp sendmsg().

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.