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linux-stable/arch/x86/kvm
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Paolo Bonzini 88dddc11a8 KVM: nVMX: do not use dangling shadow VMCS after guest reset 
If a KVM guest is reset while running a nested guest, free_nested will
disable the shadow VMCS execution control in the vmcs01.  However,
on the next KVM_RUN vmx_vcpu_run would nevertheless try to sync
the VMCS12 to the shadow VMCS which has since been freed.

This causes a vmptrld of a NULL pointer on my machime, but Jan reports
the host to hang altogether.  Let's see how much this trivial patch fixes.

Reported-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Liran Alon <liran.alon@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2019-07-20 09:00:47 +02:00
..
vmx KVM: nVMX: do not use dangling shadow VMCS after guest reset 2019-07-20 09:00:47 +02:00
cpuid.c KVM: x86: expose AVX512_BF16 feature to guest 2019-07-15 12:49:30 +02:00
cpuid.h x86/cpufeatures: Combine word 11 and 12 into a new scattered features word 2019-06-20 12:38:44 +02:00
debugfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
emulate.c KVM/arm updates for 5.3 2019-07-11 15:14:16 +02:00
hyperv.c x86: kvm: avoid -Wsometimes-uninitized warning 2019-07-15 12:50:30 +02:00
hyperv.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
i8254.c kvm: x86: Add memcg accounting to KVM allocations 2019-02-20 22:48:30 +01:00
i8254.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
i8259.c kvm: x86: Add memcg accounting to KVM allocations 2019-02-20 22:48:30 +01:00
ioapic.c kvm: x86: ioapic and apic debug macros cleanup 2019-07-15 20:39:01 +02:00
ioapic.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 320 2019-06-05 17:37:05 +02:00
irq.h KVM/arm updates for 5.3 2019-07-11 15:14:16 +02:00
irq_comm.c KVM/arm updates for 5.3 2019-07-11 15:14:16 +02:00
Kconfig kvm: x86: add host poll control msrs 2019-06-18 11:43:46 +02:00
kvm_cache_regs.h KVM: x86: use direct accessors for RIP and RSP 2019-04-30 22:07:26 +02:00
lapic.c KVM: LAPIC: Inject timer interrupt via posted interrupt 2019-07-20 09:00:40 +02:00
lapic.h KVM: LAPIC: Inject timer interrupt via posted interrupt 2019-07-20 09:00:40 +02:00
Makefile KVM: x86: fix TRACE_INCLUDE_PATH and remove -I. header search paths 2019-01-25 19:12:37 +01:00
mmu.c x86: kvm: avoid constant-conversion warning 2019-07-15 12:50:30 +02:00
mmu.h kvm: mmu: Fix overflow on kvm mmu page limit calculation 2019-04-16 15:37:30 +02:00
mmu_audit.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
mmutrace.h KVM: x86: add tracepoints around __direct_map and FNAME(fetch) 2019-07-05 13:48:48 +02:00
mtrr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
page_track.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
paging_tmpl.h KVM/arm updates for 5.3 2019-07-11 15:14:16 +02:00
pmu.c KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed 2019-07-20 09:00:46 +02:00
pmu.h KVM: x86: PMU Event Filter 2019-07-11 15:08:28 +02:00
pmu_amd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499 2019-06-19 17:09:53 +02:00
svm.c KVM: SVM: Fix detection of AMD Errata 1096 2019-07-20 09:00:44 +02:00
trace.h KVM: LAPIC: remove the trailing newline used in the fmt parameter of TP_printk 2019-07-03 16:14:39 +02:00
tss.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
x86.c KVM: LAPIC: Inject timer interrupt via posted interrupt 2019-07-20 09:00:40 +02:00
x86.h KVM: LAPIC: Inject timer interrupt via posted interrupt 2019-07-20 09:00:40 +02:00