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(parent: ebedda2) | 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>
Fri, 22 Jun 2018 09:50:22 +0000 (10:50 +0100)
commit4429580d8fe13f8a1e84845d4974f545567d8fd8
treee3c4908e57d9b0fe67f854157131eaf70aa2f755tree | snapshot
parentebedda26d60c7ed70c720761001f7ce45d153470commit | 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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