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(parent: 934465d) | 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>
Sun, 18 Feb 2018 08:36:49 +0000 (08:36 +0000)
commit3fba65acf846d407c89e4c84bdd8556d809bd63d
tree39bca4dc2d97829f40beeecd646cf9a345432cddtree | snapshot
parent934465d993daf92f703500f07f3d7d2049264fddcommit | 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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