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(parent: 2ea8235) | 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>
Sun, 29 Apr 2018 16:09:14 +0000 (17:09 +0100)
commit00359f35972d0af1f92e465d7a58bf5256d57744
treebd9c4332568956b2a6b5d974836f3168e0e1b087tree | snapshot
parent2ea8235604aa7c7c253f1e87ee88a9673816fa07commit | 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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