Messages in this thread | | | Date | Mon, 8 Dec 2014 14:15:51 -0500 | From | Dave Jones <> | Subject | Re: [RFC][PATCHES] iov_iter.c rewrite |
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On Mon, Dec 08, 2014 at 11:01:41AM -0800, Linus Torvalds wrote: > On Mon, Dec 8, 2014 at 10:56 AM, Kirill A. Shutemov > <kirill@shutemov.name> wrote: > > > > trinity triggers it for me in few minutes. I will try find out more once > > get some time. > > You run trinity as *root*? > > You're a brave man. Stupid, but brave ;) > > I guess you're running it in a VM, but still.. Doing random system > calls as root sounds like a bad bad idea.
I've flip-flopped on this a few times. I used to be solidly in the same position as your statement, but after seeing the things the secure-boot crowd want to lock down, there are a ton of places in the kernel that would need additional root-proofing to avoid scribbling over kernel memory.
In short though, yeah, expect fireworks right now, especially on bare-metal.
At the same time, just to increase coverage testing of a lot of root-required functionality (like various network sockets that can't be opened as a regular user) I added a --drop-privs mode to trinity a while ago, so after the socket creation, it can't do anything _too_ crazy.
Dave
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