From: JingYi Hou <houjingyi...@gmail.com> Date: Mon, 17 Jun 2019 14:56:05 +0800
> In sock_getsockopt(), 'optlen' is fetched the first time from userspace. > 'len < 0' is then checked. Then in condition 'SO_MEMINFO', 'optlen' is > fetched the second time from userspace. > > If change it between two fetches may cause security problems or unexpected > behaivor, and there is no reason to fetch it a second time. > > To fix this, we need to remove the second fetch. > > Signed-off-by: JingYi Hou <houjingyi...@gmail.com> Applied and queued up for -stable, thanks.
