Re: [GIT PULL] User namespace related fixes for v4.2

On Fri, Jul 03, 2015 at 03:10:40PM -0700, Linus Torvalds wrote:

On Mon, Jun 29, 2015 at 2:13 PM, Eric W. Biederman
[off-list ref] wrote:

quoted

Can you live with the patch below and committing to never supporting
executables on proc and sysfs?

Sure. I don't think executables make any sense what-so-ever in those
filesystems. I think it's fine saying that /proc and /sys cannot have
executables in them, and then use that flag to just ignore the
relevant mount flags.

Al, comments?

	I can live with that, but I would prefer that to be a superblock
flag force-set in ->mount() (and preserved in ->remount_fs()) rather than
Yet Another FS Type Flag.  OTOH, it's not hard to change afterwards.

	Al, bloody annoyed by having spent hours debugging an odd corruption
in merge candidate, only to find that it correlated to temperature of the
host ;-/  Seem to be all gone after replacing CPU fan and cleaning the
mess under it...