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(parent: 5bfce5e) | patch
x86, kaslr: Select random position from e820 maps
authorKees Cook <keescook@chromium.org>
Fri, 11 Oct 2013 00:18:16 +0000 (17:18 -0700)
committerH. Peter Anvin <hpa@linux.intel.com>
Sun, 13 Oct 2013 10:12:19 +0000 (03:12 -0700)
commit82fa9637a2ba285bcc7c5050c73010b2c1b3d803
treef9a1ba0cd4670beaa0f5b146a979d9dda0165f1ctree | snapshot
parent5bfce5ef55cbe78ee2ee6e97f2e26a8a582008f3commit | diff
x86, kaslr: Select random position from e820 maps

Counts available alignment positions across all e820 maps, and chooses
one randomly for the new kernel base address, making sure not to collide
with unsafe memory areas.

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/1381450698-28710-5-git-send-email-keescook@chromium.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
arch/x86/boot/compressed/aslr.c diff | blob | blame | history
arch/x86/boot/compressed/misc.c diff | blob | blame | history
arch/x86/boot/compressed/misc.h diff | blob | blame | history
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