Bart, On 6/8/20 7:20 AM, Bart Van Assche wrote: > On 2020-06-07 23:40, Chaitanya Kulkarni wrote: >> Bart, >> On 6/5/20 6:43 AM, Bart Van Assche wrote: >>> We typically do not implement arbitrary limits in the kernel. So I'd >>> prefer not to introduce any artificial limits. >> That is what I mentioned in [1] that we can add a check suggested in >> [1]. That way we will not enforce any limits in the kernel and keep >> the backward compatibility. >> >> Do you see any problem with the approach suggested in [1]. >> >> [1]https://www.spinics.net/lists/linux-block/msg54754.html > Please take another look at Harshad's patch description. My > understanding is that Harshad wants to protect the kernel against > malicious user space software. Modifying the user space blktrace > software as proposed in [1] doesn't help at all towards the goal of > hardening the kernel. > > Thanks, > > Bart. > Hmmm, I agree that we need fix for that. What I did't understand that why we don't need userspace fix ? Also, what is a right way to impose these limits without having any bounds in kernel ? Either I did not understand your comment(s) or I'm confuse. Can you please elaborate ?
