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(parent: e890502) | 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>
Fri, 20 Jul 2018 21:08:27 +0000 (22:08 +0100)
commit75b5795fc1c24db8bb80937fcb1002aaa92e558d
treeae591f97c71a3a16aca46573453d9a9ea1701663tree | snapshot
parente890502f7d18520bdb73bc5e05b9de350c9b453acommit | 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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