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(parent: e0be779) | patch
mtd: Disable slram and phram when locked down
authorBen Hutchings <ben@decadent.org.uk>
Thu, 2 Jun 2016 23:48:39 +0000 (00:48 +0100)
committerBastian Blank <waldi@debian.org>
Mon, 13 Aug 2018 13:33:58 +0000 (14:33 +0100)
commite49a465eaba50f1935f67d3e7be52e3ca8843585
tree50f256b202df755b5d7fa83c07a91151f666287btree | snapshot
parente0be779b7ce87043329c6db625c7530eebd0b347commit | diff
mtd: Disable slram and phram when locked down

The slram and phram drivers both allow mapping regions of physical
address space such that they can then be read and written by userland
through the MTD interface.  This is probably usable to manipulate
hardware into overwriting kernel code on many systems.  Prevent that
if locked down.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name mtd-disable-slram-and-phram-when-locked-down.patch
drivers/mtd/devices/phram.c diff | blob | history
drivers/mtd/devices/slram.c diff | blob | history
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