Avi Kivity a29815a333 core, x86: make LIST_POISON less deadly ... The list macros use LIST_POISON1 and LIST_POISON2 as undereferencable pointers in order to trap erronous use of freed list_heads. Unfortunately userspace can arrange for those pointers to actually be dereferencable, potentially turning an oops to an expolit. To avoid this allow architectures (currently x86_64 only) to override the default values for these pointers with truly-undereferencable values. This is easy on x86_64 as the virtual address space is large and contains areas that cannot be mapped. Other 64-bit architectures will likely find similar unmapped ranges. [ingo: switch to 0xdead000000000000 as the unmapped area] [ingo: add comments, cleanup] [jaswinder: eliminate sparse warnings] Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-01-11 09:45:37 -08:00
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boot	x86: add support for LZO-compressed kernels	2010-01-11 09:34:05 -08:00
configs
crypto
ia32
include/asm	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip	2010-01-08 13:55:52 -08:00
kernel	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip	2010-01-08 13:55:52 -08:00
kvm
lguest
lib
math-emu
mm	mm: make totalhigh_pages unsigned long	2010-01-11 09:34:03 -08:00
oprofile
pci	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip	2010-01-08 13:55:52 -08:00
power
tools
vdso
video
xen
Kbuild
Kconfig	core, x86: make LIST_POISON less deadly	2010-01-11 09:45:37 -08:00
Kconfig.cpu
Kconfig.debug
Makefile
Makefile_32.cpu