Re: [PATCH 1/2] fs/exec: Explicitly unshare fs_struct on exec
From: Kees Cook <hidden>
Date: 2022-10-14 03:54:24
Also in:
linux-fsdevel, linux-hardening, linux-mm, lkml, selinux
On Thu, Oct 13, 2022 at 08:18:04PM -0700, Andy Lutomirski wrote:
But seriously, this makes no sense at all. It should not be possible to exec a program and then, without ptrace, change its cwd out from under it. Do we really need to preserve this behavior?
Yup, already abandoned: https://lore.kernel.org/lkml/202210061301.207A20C8E5@keescook/ (local) -- Kees Cook