CVE-2026-43198

In the Linux kernel, the following vulnerability has been resolved: tcp: fix potential race in tcpv6synrecvsock Code in tcpv6synrecvsock after the call to tcpv4synrecvsock is done too late. After tcpv4synrecvsock, the child socket is already visible from TCP ehash table and other cpus might use i...

CVE-2026-43198 tcp: fix potential race in tcp_v6_syn_recv_sock()

In the Linux kernel, the following vulnerability has been resolved: tcp: fix potential race in tcpv6synrecvsock Code in tcpv6synrecvsock after the call to tcpv4synrecvsock is done too late. After tcpv4synrecvsock, the child socket is already visible from TCP ehash table and other cpus might use i...

CVE-2026-43198

CVE-2026-43198 is a Linux kernel race in IPv6 TCP socket handling. The issue occurs in tcp_v6_syn_recv_sock() where the child socket becomes visible before IPv6 state is initialized, allowing other CPUs to access it and potentially triggering instability. The fix moves the problematic code into t...