selftests/bpf: Add tests for the KF_PERFMON gates

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Add test cases where each one loads with CAP_BPF alone and checks that
the program is correctly rejected.

  # LDLIBS=-static PKG_CONFIG='pkg-config --static' ./vmtest.sh -- ./test_progs -t verifier_kfunc_perfmon
  [...]
  #627/1   verifier_kfunc_perfmon/rdonly_cast_noperfmon:OK
  #627/2   verifier_kfunc_perfmon/rdonly_cast_noperfmon @unpriv:OK
  #627/3   verifier_kfunc_perfmon/probe_read_kernel_dynptr_noperfmon:OK
  #627/4   verifier_kfunc_perfmon/probe_read_kernel_dynptr_noperfmon @unpriv:OK
  #627/5   verifier_kfunc_perfmon/stream_vprintk_noperfmon:OK
  #627/6   verifier_kfunc_perfmon/stream_vprintk_noperfmon @unpriv:OK
  #627/7   verifier_kfunc_perfmon/get_kmem_cache_noperfmon:OK
  #627/8   verifier_kfunc_perfmon/get_kmem_cache_noperfmon @unpriv:OK
  #627/9   verifier_kfunc_perfmon/arg_untrusted_read_noperfmon:OK
  #627/10  verifier_kfunc_perfmon/arg_untrusted_read_noperfmon @unpriv:OK
  #627     verifier_kfunc_perfmon:OK
  Summary: 1/10 PASSED, 0 SKIPPED, 0/0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20260910213510.49358-4-daniel@iogearbox.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

This commit is contained in:

Daniel Borkmann 2026-09-10 23:35:10 +02:00 • committed by Alexei Starovoitov

parent f9191460cd

commit a903f145a8

2 changed files with 77 additions and 0 deletions

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2

tools/testing/selftests/bpf/prog_tests/verifier.c

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75

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

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