Messages in this thread |  | | From | "Stephen C. Tweedie" <> | | Date | Thu, 22 Apr 1999 22:53:13 +0100 (BST) | | Subject | Re: inheritable set [was Re: caps in elf headers: use the sticky bit!] |
| |
Hi,
On Wed, 21 Apr 1999 13:39:09 -0700 (PDT), Y2K <y2k@y2ker.com> said:
>> No, because "more" wouldn't have any capabilities in its "inheritable" >> set, so it would NOT inherit any capabilities which its parents had.
> Thats not very compatible, right now if the parent has the caps they flow > to their children.
Right. That's the entire point: automatic inheritence of all caps is a potential security problem, as it lets privileges leak into programs which weren't designed to cope with those privs. You _can't_ change that while maintaining compatibility. It's a simple one way choice: compatibility necessarily implies preserving an entire class of security vulnerabilities.
--Stephen
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
|  |