Thomas Gleixner bb8d41330c x86/PCI: Prevent mmconfig memory corruption ... commit ff097ddd4 (x86/PCI: MMCONFIG: manage pci_mmcfg_region as a list, not a table) introduced a nasty memory corruption when pci_mmcfg_list is empty. pci_mmcfg_check_end_bus_number() dereferences pci_mmcfg_list.prev even when the list is empty. The following write hits some variable near to pci_mmcfg_list. Further down a similar problem exists, where cfg->list.next is dereferenced unconditionally and a comparison with some variable near to pci_mmcfg_list happens. Add a check for the last element into the for_each_entry() loop and remove all the other crappy logic which is just a leftover of the old array based code which was replaced by the list conversion. Reported-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: stable@kernel.org Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>		2010-02-25 08:30:58 -08:00
..
boot	x86: add support for LZO-compressed kernels	2010-01-11 09:34:05 -08:00
configs
crypto
ia32	x86: get rid of the insane TIF_ABI_PENDING bit	2010-01-29 08:22:01 -08:00
include/asm	x86/PCI: use host bridge _CRS info by default on 2008 and newer machines	2010-02-23 09:43:42 -08:00
kernel	Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-02-22 08:55:32 -08:00
kvm	KVM: PIT: control word is write-only	2010-02-09 19:20:15 +02:00
lguest
lib
math-emu
mm	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-02-11 14:01:10 -08:00
oprofile	oprofile/x86: add Xeon 7500 series support	2010-01-25 15:34:53 +01:00
pci	x86/PCI: Prevent mmconfig memory corruption	2010-02-25 08:30:58 -08:00
power
tools
vdso
video
xen	x86: xen: 64-bit kernel RPL should be 0	2010-01-13 11:23:54 +01:00
Kbuild
Kconfig	x86: Remove "x86 CPU features in debugfs" (CONFIG_X86_CPU_DEBUG)	2010-01-23 18:27:47 -08:00
Kconfig.cpu	Revert "x86: Side-step lguest problem by only building cmpxchg8b_emu for pre-Pentium"	2010-01-05 16:01:35 -08:00
Kconfig.debug
Makefile
Makefile_32.cpu