libnvdimm, pfn: make 'resource' attribute only readable by root

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commit 26417ae4fc upstream.

For the same reason that /proc/iomem returns 0's for non-root readers
and acpi tables are root-only, make the 'resource' attribute for pfn
devices only readable by root. Otherwise we disclose physical address
information.

Fixes: f6ed58c70d ("libnvdimm, pfn: 'resource'-address and 'size'...")
Reported-by: Dave Hansen <dave.hansen@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Dan Williams 2017-09-26 13:07:06 -07:00 • committed by Greg Kroah-Hartman

parent 8a42130ee8

commit 2224973f18

1 changed files with 8 additions and 0 deletions

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drivers/nvdimm/pfn_devs.c

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