linux/arch/arm/kvm
Marc Zyngier 1d6a821277 arm/arm64: KVM: Feed initialized memory to MMIO accesses
On an MMIO access, we always copy the on-stack buffer info
the shared "run" structure, even if this is a read access.
This ends up leaking up to 8 bytes of uninitialized memory
into userspace, depending on the size of the access.

An obvious fix for this one is to only perform the copy if
this is an actual write.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2016-02-24 11:53:09 +00:00
..
arm.c arm/arm64: KVM: Detect vGIC presence at runtime 2015-12-18 12:01:58 +00:00
coproc_a7.c arm/arm64: KVM: Use set/way op trapping to track the state of the caches 2015-01-29 23:24:56 +01:00
coproc_a15.c arm/arm64: KVM: Use set/way op trapping to track the state of the caches 2015-01-29 23:24:56 +01:00
coproc.c arm/arm64: KVM: Use set/way op trapping to track the state of the caches 2015-01-29 23:24:56 +01:00
coproc.h arm/arm64: KVM: Use set/way op trapping to track the state of the caches 2015-01-29 23:24:56 +01:00
emulate.c ARM: KVM: Cleanup exception injection 2015-12-18 10:14:54 +00:00
guest.c KVM: arm/arm64: Count guest exit due to various reasons 2015-12-14 11:30:00 +00:00
handle_exit.c KVM: arm/arm64: Count guest exit due to various reasons 2015-12-14 11:30:00 +00:00
init.S ARM: kvm: round HYP section to page size instead of log2 upper bound 2015-03-27 12:21:27 +00:00
interrupts_head.S arm: KVM: Disable virtual timer even if the guest is not using it 2015-09-17 13:11:48 +01:00
interrupts.S arm: KVM: keep arm vfp/simd exit handling consistent with arm64 2015-08-19 22:27:58 +01:00
Kconfig arm/arm64: KVM : Enable vhost device selection under KVM config menu 2015-10-22 23:01:45 +02:00
Makefile KVM: arm/arm64: Enable the KVM-VFIO device 2015-06-17 09:46:29 +01:00
mmio.c arm/arm64: KVM: Feed initialized memory to MMIO accesses 2016-02-24 11:53:09 +00:00
mmu.c kvm: rename pfn_t to kvm_pfn_t 2016-01-15 17:56:32 -08:00
perf.c ARM: KVM: add support for minimal host vs guest profiling 2013-04-28 21:44:01 -07:00
psci.c arm64: KVM: Get rid of old vcpu_reg() 2015-12-04 16:30:03 +00:00
reset.c KVM: arm/arm64: timer: Allow the timer to control the active state 2015-08-12 11:28:26 +01:00
trace.h arm/arm64: KVM: Improve kvm_exit tracepoint 2015-10-22 23:01:47 +02:00