selftests/bpf: tests for __arg_untrusted void * global func params

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Check usage of __arg_untrusted parameters of primitive type:
- passing of {trusted, untrusted, map value, scalar value, values with
  variable offset} to untrusted `void *`, `char *` or enum is ok;
- varifier represents such parameters as rdonly_untrusted_mem(sz=0).

Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20250704230354.1323244-9-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Eduard Zingerman 2025-07-04 16:03:54 -07:00 • committed by Alexei Starovoitov

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commit 68cca81fd5

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tools/testing/selftests/bpf/progs/verifier_global_ptr_args.c

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