linux/arch/powerpc
Anton Blanchard a5adc91a4b powerpc: Ensure random space between stack and mmaps
get_random_int() returns the same value within a 1 jiffy interval. This means
that the mmap and stack regions will almost always end up the same distance
apart, making a relative offset based attack possible.

To fix this, shift the randomness we use for the mmap region by 1 bit.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-02-23 15:53:21 +11:00
..
boot Merge commit 'kumar/next' into next 2009-02-18 13:23:30 +11:00
configs powerpc/amigaone: Default config for AmigaOne boards 2009-02-11 16:00:10 +11:00
include/asm powerpc: Randomise the brk region 2009-02-23 15:53:20 +11:00
kernel powerpc: Randomise the brk region 2009-02-23 15:53:20 +11:00
kvm KVM: Add kvm_arch_sync_events to sync with asynchronize events 2009-02-15 02:47:36 +02:00
lib powerpc: Rework dma-noncoherent to use generic vmalloc layer 2009-02-23 10:48:57 +11:00
math-emu powerpc: Add SPE/EFP math emulation for E500v1/v2 processors. 2008-12-03 08:19:16 -06:00
mm powerpc: Ensure random space between stack and mmaps 2009-02-23 15:53:21 +11:00
oprofile powerpc/cell: Add missing #include for oprofile 2009-02-10 14:39:08 +11:00
platforms powerpc/powermac: Hotplug /sys entries are missing 2009-02-23 15:53:06 +11:00
sysdev Merge commit 'kumar/next' into next 2009-02-11 13:37:44 +11:00
xmon powerpc: Prepare xmon_save_regs for use with kdump 2008-12-23 15:13:28 +11:00
Kconfig powerpc: Rework dma-noncoherent to use generic vmalloc layer 2009-02-23 10:48:57 +11:00
Kconfig.debug powerpc: Allow the max stack trace depth to be configured 2008-12-03 20:46:35 +11:00
Makefile powerpc: Remove unncessary SPE related compiler flag 2008-12-03 08:19:10 -06:00