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__sk_prepare_filter() was reworked in commitbd4cf0ed3(net: filter: rework/optimize internal BPF interpreter's instruction set) so that it should have uncharged memory once things went wrong. However that work isn't complete. Error is handled only in __sk_migrate_filter() while memory can still leak in the error path right after sk_chk_filter(). Fixes:bd4cf0ed33("net: filter: rework/optimize internal BPF interpreter's instruction set") Signed-off-by: Leon Yu <chianglungyu@gmail.com> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Tested-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>