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(parent: 2018596) | 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)
committerSalvatore Bonaccorso <carnil@debian.org>
Sat, 18 Aug 2018 12:02:58 +0000 (13:02 +0100)
commitc2cfb0486a8ebc3fc957d7fe4e26c8d054cf33a4
treec879ee0e06e2d3b10f2f8250424fd80723b53e29tree | snapshot
parent2018596b11fd5da46a34ee32eb65ac70f7f41078commit | 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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