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bpf: fix stack state printing in verifier log

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commit 12a3cc8424 upstream.

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>
Signed-off-by: Balbir Singh <sblbir@amzn.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexei Starovoitov
2019-04-03 18:39:04 +00:00
committed by Greg Kroah-Hartman
parent 86e5dd8cce
commit 8561489481
1 changed files with 1 additions and 1 deletions
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2
kernel/bpf/verifier.c
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@@ -268,7 +268,7 @@ static void print_verifier_state(struct bpf_verifier_state *state)
for (i = 0; i < state->allocated_stack / BPF_REG_SIZE; i++) {
if (state->stack[i].slot_type[0] == STACK_SPILL)
verbose(" 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("\n");