selftests/bpf: Add test to verify checking padding bytes for BPF syscall common attributes

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Add a test to verify that the tailing padding 4 bytes are checked in
syscall.c::__sys_bpf() using bpf_check_uarg_tail_zero().

Without the fix, the test fails with:

 test_common_attr_padding:FAIL:syscall unexpected syscall: actual 4 >= expected 0
 #213/12  map_create_failure/common_attr_padding:FAIL

Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Link: https://lore.kernel.org/r/20260518145446.6794-6-leon.hwang@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

...

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Leon Hwang 2026-05-18 22:54:46 +08:00 • committed by Alexei Starovoitov

parent 652f0c2c99

commit 7732ad2412

1 changed files with 26 additions and 0 deletions

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

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