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The calculation of the index used to access the mask field in 'struct bpf_raw_tp_null_args' is done with 'int' type, which could overflow when the tracepoint being attached has more than 8 arguments. While none of the tracepoints mentioned in raw_tp_null_args[] currently have more than 8 arguments, there do exist tracepoints that had more than 8 arguments (e.g. iocost_iocg_forgive_debt), so use the correct type for calculation and avoid Smatch static checker warning. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/bpf/20250418074946.35569-1-shung-hsi.yu@suse.com Closes: https://lore.kernel.org/r/843a3b94-d53d-42db-93d4-be10a4090146@stanley.mountain/