selftests/bpf: half-dead scalar zero stack spill test

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A test case demonstrating unsafe pruning when spill of a scalar zero
spilled on a first pass in replaced by STACK_ZERO in the
__clean_func_state().

Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260827-bug-011-cleanfunc-stack-zero-simple-v1-v1-2-c0e996589a52@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Eduard Zingerman 2026-08-27 15:48:24 -07:00 • committed by Alexei Starovoitov

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

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