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Andre Przywara e8180dcaa8 ARM: KVM: prevent NULL pointer dereferences with KVM VCPU ioctl 
Some ARM KVM VCPU ioctls require the vCPU to be properly initialized
with the KVM_ARM_VCPU_INIT ioctl before being used with further
requests. KVM_RUN checks whether this initialization has been
done, but other ioctls do not.
Namely KVM_GET_REG_LIST will dereference an array with index -1
without initialization and thus leads to a kernel oops.
Fix this by adding checks before executing the ioctl handlers.

 [ Removed superflous comment from static function - Christoffer ]

Changes from v1:
 * moved check into a static function with a meaningful name

Signed-off-by: Andre Przywara <andre.przywara@linaro.org>
Signed-off-by: Christoffer Dall <cdall@cs.columbia.edu>
2013-06-03 10:58:56 +03:00
..
alpha Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
arc Aliasing VIPT dcache support for ARC 2013-05-10 07:24:14 -07:00
arm ARM: KVM: prevent NULL pointer dereferences with KVM VCPU ioctl 2013-06-03 10:58:56 +03:00
arm64 arm64: debug: fix mdscr.ss check when enabling debug exceptions 2013-05-17 18:24:19 +01:00
avr32 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/linux-avr32 2013-05-22 18:06:57 -07:00
blackfin blackfin updates for Linux 3.10 2013-05-10 07:21:16 -07:00
c6x dump_stack: unify debug information printed by show_regs() 2013-04-30 17:04:02 -07:00
cris - Lots of cleanups from Artem, including deletion of some obsolete drivers 2013-05-09 10:15:46 -07:00
frv Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
h8300 We get rid of the general module prefix confusion with a binary config option, 2013-05-05 10:58:06 -07:00
hexagon Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
ia64 Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
m32r Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
m68k - Artem's removal of dead code continues (RPX, MBX860) 2013-05-10 09:09:47 -07:00
metag Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
microblaze Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze 2013-05-10 07:19:52 -07:00
mips mips/kvm: Use ENOIOCTLCMD to indicate unimplemented ioctls. 2013-06-03 10:58:55 +03:00
mn10300 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
openrisc Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
parisc parisc: make default cross compiler search more robust (v3) 2013-05-13 22:11:57 +02:00
powerpc USB fixes for 3.10-rc2 2013-05-23 09:23:32 -07:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2013-05-21 09:36:46 -07:00
score Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
sh Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
sparc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-05-10 09:21:05 -07:00
tile Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2013-05-09 14:34:58 -07:00
um Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-07 15:14:53 -07:00
unicore32 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-05-10 09:21:05 -07:00
x86 PCI updates for v3.10: 2013-05-23 13:50:53 -07:00
xtensa Xtensa patchset for v3.10-rc1 2013-05-09 14:38:16 -07:00
.gitignore
Kconfig Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-05-15 14:04:00 -07:00