Oracle Linux 8 kernel Important Remote Access Threat ELSA-2026-50142

[5.4.17-2136.353.3] - xfrm: flush all states in xfrm_state_fini (Sabrina Dubroca) [Orabug: 38934000] - xfrm: also call xfrm_state_delete_tunnel at destroy time for states that were never added (Sabrina Dubroca) [Orabug: 38934000] - Revert "xfrm: destroy xfrm_state synchronously on net exit path" (Sabrina Dubroca) [Orabug: 38934000] - Revert "IB/mlx5: Implement clear counters" (Sharath Srinivasan) [Orabug: 38923520] - Revert "IB/core: Implement clear counters" (Sharath Srinivasan) [Orabug: 38923520] - Revert "ib/core: add SET_DEVICE_OP call for clear_hw_stats()" (Sharath Srinivasan) [Orabug: 38923520] - fs: proc: inode: delay put_pid() by RCU (Stephen Brennan) [Orabug: 38766812] [5.4.17-2136.353.2] - Revert "perf/x86: Always store regs->ip in perf_callchain_kernel()" (Jiri Olsa) [Orabug: 38893604] - xfrm: delete x->tunnel as we delete x (Sabrina Dubroca) [Orabug: 38730493] {CVE-2025-40215}