Linux Kernel TCP Sysctl Data-Race Vulnerability

A data-race vulnerability has been identified in the Linux kernel's TCP implementation, specifically around the 'sysctl_tcp_probe_interval' parameter. This vulnerability arises because the parameter can be changed concurrently while it is being read, leading to potential inconsistencies. The issue has been addressed by adding a 'READ_ONCE()' directive to the reader of the parameter, ensuring a more reliable and consistent read operation.

Impact

Exploitation of this vulnerability could lead to a data-race condition, causing inconsistent reads of the 'sysctl_tcp_probe_interval' parameter, which could disrupt TCP probing behavior.