Re: [PATCH] bpf_prog_offload_info_fill: replace bitwise AND by logical AND

From: Daniel Borkmann
Date: Mon Feb 17 2020 - 10:57:01 EST

On 2/12/20 8:32 PM, Johannes Krude wrote:
This if guards whether user-space wants a copy of the offload-jited
bytecode and whether this bytecode exists. By erroneously doing a bitwise
AND instead of a logical AND on user- and kernel-space buffer-size can lead
to no data being copied to user-space especially when user-space size is a
power of two and bigger then the kernel-space buffer.

Signed-off-by: Johannes Krude <johannes@xxxxxxxx>

Applied, thanks!