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Add a test for out-of-bounds write in trie_get_next_key() when a full path from root to leaf exists and bpf_map_get_next_key() is called with the leaf node. It may crashes the kernel on failure, so please run in a VM. Signed-off-by: Byeonguk Jeong <jungbu2855@gmail.com> Acked-by: Hou Tao <houtao1@huawei.com> Link: https://lore.kernel.org/r/Zxx4ep78tsbeWPVM@localhost.localdomain Signed-off-by: Alexei Starovoitov <ast@kernel.org>