CVE-2026-43091

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> xfrm: Wait for RCU readers during policy netns exit<br /> <br /> xfrm_policy_fini() frees the policy_bydst hash tables after flushing the<br /> policy work items and deleting all policies, but it does not wait for<br /> concurrent RCU readers to leave their read-side critical sections first.<br /> <br /> The policy_bydst tables are published via rcu_assign_pointer() and are<br /> looked up through rcu_dereference_check(), so netns teardown must also<br /> wait for an RCU grace period before freeing the table memory.<br /> <br /> Fix this by adding synchronize_rcu() before freeing the policy hash tables.