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(parent: 6bfcc89) | 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)
committerBen Hutchings <ben@decadent.org.uk>
Sat, 12 Aug 2017 22:09:26 +0000 (23:09 +0100)
commit90f5fd3ceba4ba224dc5e9e035ab957f960393e6
tree208f886c63f55d8ab2e21418f7acae5d51b9225btree | snapshot
parent6bfcc899c322b511ba21b7e17e185322104c8cf9commit | 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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