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bpf: fix stack state printing in verifier log

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fix incorrect stack state prints in print_verifier_state()

Fixes: 638f5b90d4 ("bpf: reduce verifier memory consumption")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Alexei Starovoitov 2017-11-30 21:31:35 -08:00 committed by Daniel Borkmann
parent 51de082570
commit 12a3cc8424
1 changed files with 1 additions and 1 deletions
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kernel/bpf/verifier.c
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@ -279,7 +279,7 @@ static void print_verifier_state(struct bpf_verifier_env *env,
for (i = 0; i < state->allocated_stack / BPF_REG_SIZE; i++) {
if (state->stack[i].slot_type[0] == STACK_SPILL)
verbose(env, " fp%d=%s",
-MAX_BPF_STACK + i * BPF_REG_SIZE,
(-i - 1) * BPF_REG_SIZE,
reg_type_str[state->stack[i].spilled_ptr.type]);
}
verbose(env, "\n");