CVE-2022-49920
netfilter: nf_tables: netlink notifier might race to release objects
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netfilter: nf_tables: netlink notifier might race to release objects
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: netlink notifier might race to release objects commit release path is invoked via call_rcu and it runs lockless to release the objects after rcu grace period. The netlink notifier handler might win race to remove objects that the transaction context is still referencing from the commit release path. Call rcu_barrier() to ensure pending rcu callbacks run to completion if the list of transactions to be destroyed is not empty.
Reserved 2025-05-01 | Published 2025-05-01 | Updated 2025-05-04 | Assigner Linuxgit.kernel.org/...c/1ffe7100411a8b9015115ce124cd6c9c9da6f8e3
git.kernel.org/...c/e40b7c44d19e327ad8b49a491ef1fa8dcc4566e0
git.kernel.org/...c/d4bc8271db21ea9f1c86a1ca4d64999f184d4aae
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