Messages in this thread | | | Date | Mon, 26 Aug 2013 18:20:55 +0100 | From | Al Viro <> | Subject | Re: [PATCH 1/2] procfs: restore 0400 permissions on /proc/*/{syscall,stack,personality} |
| |
On Mon, Aug 26, 2013 at 09:49:48AM -0700, Eric W. Biederman wrote:
> How does changing the permissions to S_IRUSR prevent someone from > opening the file before, and reading the file after a suid exec? > > > This patch restores the old mode which was 0400 > > Which seems to add no security whatsoever and obscure the fact that > anyone who cares can read the file so what is the point?
Two words: "security sclerosis". Both patches NAKed, of course.
| |