Messages in this thread | | | From | Kay Sievers <> | Date | Wed, 21 Nov 2012 01:13:42 +0100 | Subject | Re: [PATCH v2] devtmpfs: mount with noexec and nosuid |
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On Tue, Nov 20, 2012 at 9:42 PM, Kees Cook <keescook@chromium.org> wrote: > Since devtmpfs is writable, make the default noexec,nosuid as well. This > protects from the case of a privileged process having an arbitrary file > write flaw and an argumentless arbitrary execution (i.e. it would lack > the ability to run "mount -o remount,exec,suid /dev").
This only really applies to systems without an initramfs when the kernel mounts /dev over the rootfs it has mounted; with an initramfs, /dev is always mounted by user code.
Just checking, that is the use case you are doing that for?
Kay
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