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[ Upstream commitef3ba8c258] A NULL pointer dereference could occur if ksyms is not properly checked before usage in the prog_dump() function. Fixes:b053b439b7("bpf: libbpf: bpftool: Print bpf_line_info during prog dump") Signed-off-by: Amir Mohammadi <amiremohamadi@yahoo.com> Reviewed-by: Quentin Monnet <qmo@kernel.org> Acked-by: John Fastabend <john.fastabend@gmail.com> Link: https://lore.kernel.org/r/20241121083413.7214-1-amiremohamadi@yahoo.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>