mbox series

[0/2] Add bounds check for Hotplugged memory

Message ID 20190910025225.25904-1-alastair@au1.ibm.com (mailing list archive)
Headers show
Series Add bounds check for Hotplugged memory | expand

Message

Alastair D'Silva Sept. 10, 2019, 2:52 a.m. UTC 
From: Alastair D'Silva <alastair@d-silva.org>

This series adds bounds checks for hotplugged memory, ensuring that
it is within the physically addressable range (for platforms that
define MAX_(POSSIBLE_)PHYSMEM_BITS.

This allows for early failure, rather than attempting to access
bogus section numbers.

Alastair D'Silva (2):
  memory_hotplug: Add a bounds check to check_hotplug_memory_range()
  mm: Add a bounds check in devm_memremap_pages()

 include/linux/memory_hotplug.h |  1 +
 mm/memory_hotplug.c            | 19 ++++++++++++++++++-
 mm/memremap.c                  |  8 ++++++++
 3 files changed, 27 insertions(+), 1 deletion(-)