CVE-2025-40281

In the Linux kernel, CVE-2025-40281 affects SCTP in net/sctp/transport.c, where a shift-out-of-bounds could occur in sctp_transport_update_rto if rto_alpha_max/rto_beta_max were very large. The fix adds a run-time test to prevent regressions and includes READ_ONCE() annotations since sysctl value...