From: Martin KaFai Lau <[email protected]>
Date: Wed, 28 Jun 2017 10:41:24 -0700
> The index is off-by-one when fp->aux->stack_depth
> has already been rounded up to 32. In particular,
> if stack_depth is 512, the index will be 16.
>
> The fix is to round_up and then takes -1 instead of round_down.
...
> Fixes: b870aa901f4b ("bpf: use different interpreter depending on required
> stack size")
> Signed-off-by: Martin KaFai Lau <[email protected]>
> Acked-by: Alexei Starovoitov <[email protected]>
> Acked-by: Daniel Borkmann <[email protected]>
Applied, thanks Martin.
