Daniel Borkmann wrote:
> Given bpf_probe_read{,str}() BPF helpers are now only available under
> CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, we need to add the drop-in
> replacements of bpf_probe_read_{kernel,user}_str() to do_refine_retval_range()
> as well to avoid hitting the same issue as in 849fa50662fbc ("bpf/verifier:
> refine retval R0 state for bpf_get_stack helper").
>
> Signed-off-by: Daniel Borkmann <[email protected]>
> Cc: John Fastabend <[email protected]>
> Cc: Yonghong Song <[email protected]>
> ---
Acked-by: John Fastabend <[email protected]>
