kernel: netfilter: nf_tables: release flowtable after rcu grace period on error

A flaw was found in the Linux kernel's netfilter component, specifically within the nftables subsystem. An error in releasing a flowtable after an RCU Read-Copy-Update grace period could lead to a use-after-free vulnerability. This issue could expose the flowtable to the packet path and...

SUSE CVE-2026-23392

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: release flowtable after rcu grace period on error Call synchronizercu after unregistering the hooks from error path, since a hook that already refers to this flowtable can be already registered, exposing this...

CVE-2026-23392

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: release flowtable after rcu grace period on error Call synchronizercu after unregistering the hooks from error path, since a hook that already refers to this flowtable can be already registered, exposing this...

CVE-2026-23392 netfilter: nf_tables: release flowtable after rcu grace period on error

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: release flowtable after rcu grace period on error Call synchronizercu after unregistering the hooks from error path, since a hook that already refers to this flowtable can be already registered, exposing this...

CVE-2026-23392

The CVE-2026-23392 vulnerability affects the Linux kernel nf_tables flowtable handling. Root cause: during error paths, a hook may still reference a flowtable, exposing it to the packet path and nfnetlink control plane. The fix inserts synchronize_rcu() after unregistering hooks (rcu grace period...

CVE-2026-23392

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: release flowtable after rcu grace period on error Call synchronizercu after unregistering the hooks from error path, since a hook that already refers to this flowtable can be already registered, exposing this...