Hi *,
I think, measures can|should be taken, which reduce the probability of having a
swap file inadvertently run with too open permissions.
As a first idea, it looks, as if such may be implemented, eg. by
letting swapon [and fstab-based "mounting"] by default not enable a swap
file, if it has non-root access permissions
|| letting mkswap by default ignore too open settings of umask and create the
swap file mod 0600 instead
.
In both cases, an explicit switch|parameter could enable the present,
non-restrictive behaviour.
Best regards,
Markus
PS: I'm speaking as of util-linux-ng version 2.17.2.
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