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[ Upstream commit85cd83fed8] When using `bpftool --version -j/-p`, the JSON writer object created in do_version() was not properly destroyed after use. This caused a memory leak each time the version command was executed with JSON output. Fix:004b45c0e5(tools: bpftool: provide JSON output for all possible commands) Suggested-by: Quentin Monnet <qmo@kernel.org> Signed-off-by: Yuan Chen <chenyuan@kylinos.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Quentin Monnet <qmo@kernel.org> Link: https://lore.kernel.org/bpf/20250617132442.9998-1-chenyuan_fl@163.com Signed-off-by: Sasha Levin <sashal@kernel.org>