AuxXxilium/linux_dsm_epyc7002
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129a72a0d3
linux_dsm_epyc7002/arch/x86/kvm
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Steve Rutherford 129a72a0d3 KVM: x86: Introduce segmented_write_std 
Introduces segemented_write_std.

Switches from emulated reads/writes to standard read/writes in fxsave,
fxrstor, sgdt, and sidt.  This fixes CVE-2017-2584, a longstanding
kernel memory leak.

Since commit 283c95d0e3 ("KVM: x86: emulate FXSAVE and FXRSTOR",
2016-11-09), which is luckily not yet in any final release, this would
also be an exploitable kernel memory *write*!

Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: stable@vger.kernel.org
Fixes: 96051572c8
Fixes: 283c95d0e3
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Steve Rutherford <srutherford@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-12 14:34:58 +01:00
..
assigned-dev.c KVM: x86: use list_for_each_entry* 2016-02-23 15:40:54 +01:00
assigned-dev.h KVM: x86: move device assignment out of kvm_host.h 2014-11-24 16:53:50 +01:00
cpuid.c KVM: x86: Expose Intel AVX512IFMA/AVX512VBMI/SHA features to guest. 2016-12-15 15:02:44 +01:00
cpuid.h Revert "KVM: x86: add pcommit support" 2016-07-23 11:04:23 -07:00
debugfs.c kvm: x86: export TSC information to user-space 2016-09-16 16:57:48 +02:00
emulate.c KVM: x86: Introduce segmented_write_std 2017-01-12 14:34:58 +01:00
hyperv.c KVM: hyperv: fix locking of struct kvm_hv fields 2016-12-16 17:53:38 +01:00
hyperv.h KVM: x86: Hyper-V tsc page setup 2016-09-20 09:26:20 +02:00
i8254.c KVM: x86: Handle the kthread worker using the new API 2016-12-08 15:31:11 +01:00
i8254.h KVM: x86: Handle the kthread worker using the new API 2016-12-08 15:31:11 +01:00
i8259.c KVM: x86: clean/fix memory barriers in irqchip_in_kernel 2015-07-30 16:02:56 +02:00
ioapic.c KVM: x86: fix out-of-bounds accesses of rtc_eoi map 2016-11-24 18:37:19 +01:00
ioapic.h KVM: x86: fix out-of-bounds accesses of rtc_eoi map 2016-11-24 18:37:19 +01:00
iommu.c - ARM: GICv3 ITS emulation and various fixes. Removal of the old 2016-08-02 16:11:27 -04:00
irq_comm.c KVM: x86: check for pic and ioapic presence before use 2016-11-24 18:39:28 +01:00
irq.c x86/kvm: Audit and remove any unnecessary uses of module.h 2016-07-14 15:07:00 +02:00
irq.h KVM: Move kvm_setup_default/empty_irq_routing declaration in arch specific header 2016-07-22 18:52:00 +01:00
Kconfig KVM: remove kvm_vcpu_compatible 2016-06-16 00:05:00 +02:00
kvm_cache_regs.h KVM, pkeys: add pkeys support for permission_fault 2016-03-22 16:23:37 +01:00
lapic.c KVM: x86: flush pending lapic jump label updates on module unload 2017-01-12 14:33:17 +01:00
lapic.h KVM: x86: flush pending lapic jump label updates on module unload 2017-01-12 14:33:17 +01:00
Makefile kvm: add stubs for arch specific debugfs support 2016-09-16 16:57:47 +02:00
mmu_audit.c kvm: rename pfn_t to kvm_pfn_t 2016-01-15 17:56:32 -08:00
mmu.c kvm: svm: Add support for additional SVM NPF error codes 2016-11-24 18:32:26 +01:00
mmu.h kvm: mmu: remove is_present_gpte() 2016-07-14 09:02:47 +02:00
mmutrace.h tracing: Rename ftrace_event.h to trace_events.h 2015-05-13 14:05:12 -04:00
mtrr.c KVM: MTRR: fix kvm_mtrr_check_gfn_range_consistency page fault 2016-07-05 16:14:43 +02:00
page_track.c kvm/page_track: export symbols for external usage 2016-11-04 12:13:20 +01:00
paging_tmpl.h kvm: mmu: track read permission explicitly for shadow EPT page tables 2016-07-14 09:03:50 +02:00
pmu_amd.c perf/x86/amd: Make HW_CACHE_REFERENCES and HW_CACHE_MISSES measure L2 2016-09-16 16:19:49 +02:00
pmu_intel.c KVM: x86: Fix typos 2016-06-14 11:16:28 +02:00
pmu.c KVM: x86: consolidate different ways to test for in-kernel LAPIC 2016-02-09 16:57:45 +01:00
pmu.h KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch 2015-06-23 14:12:14 +02:00
svm.c KVM: x86: Add kvm_skip_emulated_instruction and use it. 2016-12-08 15:31:05 +01:00
trace.h KVM: x86: support using the vmx preemption timer for tsc deadline timer 2016-06-16 10:07:48 +02:00
tss.h KVM: x86: hardware task switching support 2008-04-27 12:00:39 +03:00
vmx.c KVM: VMX: remove duplicated declaration 2017-01-05 15:08:48 +01:00
x86.c KVM: x86: flush pending lapic jump label updates on module unload 2017-01-12 14:33:17 +01:00
x86.h KVM: x86: introduce get_kvmclock_ns 2016-09-20 09:26:15 +02:00