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linux/arch/x86/kvm
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Paolo Bonzini 1412cdde82 KVM: x86: fix shift out of bounds reported by UBSAN 
commit 2f80d502d627f30257ba7e3655e71c373b7d1a5a upstream.

Since we know that e >= s, we can reassociate the left shift,
changing the shifted number from 1 to 2 in exchange for
decreasing the right hand side by 1.

Reported-by: syzbot+e87846c48bf72bc85311@syzkaller.appspotmail.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-12 20:10:24 +01:00
..
cpuid.c
kvm: x86: Host feature SSBD doesn't imply guest feature SPEC_CTRL_SSBD
2020-04-21 09:03:10 +02:00
cpuid.h
KVM: x86: reinstate vendor-agnostic check on SPEC_CTRL cpuid bits
2021-01-06 14:44:59 +01:00
debugfs.c
kvm: x86: export TSC information to user-space
2016-09-16 16:57:48 +02:00
emulate.c
KVM: x86: clflushopt should be treated as a no-op by emulation
2020-11-22 10:02:26 +01:00
hyperv.c
KVM: x86: Protect kvm_hv_msr_[get|set]_crash_data() from Spectre-v1/L1TF attacks
2020-02-11 04:34:09 -08:00
hyperv.h
KVM: hyperv: define VP assist page helpers
2019-09-16 08:21:50 +02:00
i8254.c
KVM: x86: take slots_lock in kvm_free_pit
2017-07-12 22:38:26 +02:00
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: Refactor picdev_write() to prevent Spectre-v1/L1TF attacks
2020-02-11 04:34:09 -08:00
ioapic.c
KVM: x86: Protect ioapic_read_indirect() from Spectre-v1/L1TF attacks
2020-02-11 04:34:10 -08:00
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_comm.c
KVM: x86: don't notify userspace IOAPIC on edge-triggered interrupt EOI
2020-02-28 16:38:51 +01:00
irq.c
KVM: x86: Fix split-irqchip vs interrupt injection window request
2020-12-02 08:48:07 +01:00
irq.h
kvm: Check irqchip mode before assign irqfd
2019-09-16 08:22:15 +02:00
Kconfig
x86/kvm/Kconfig: Ensure CRYPTO_DEV_CCP_DD state at minimum matches KVM_AMD
2018-07-15 17:36:57 +02:00
kvm_cache_regs.h
KVM: x86: Mark CR4.TSD as being possibly owned by the guest
2020-07-16 08:17:26 +02:00
lapic.c
KVM: x86: handle !lapic_in_kernel case in kvm_cpu_*_extint
2020-12-02 08:48:07 +01:00
lapic.h
KVM: hyperv: define VP assist page helpers
2019-09-16 08:21:50 +02:00
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mmu_audit.c
KVM: x86: MMU: make array audit_point_name static
2017-12-14 09:26:41 +01:00
mmu.c
KVM: x86/mmu: Commit zap of remaining invalid pages when recovering lpages
2020-10-29 09:54:59 +01:00
mmu.h
KVM: x86: fix shift out of bounds reported by UBSAN
2021-01-12 20:10:24 +01:00
mmutrace.h
KVM: x86: fix incorrect comparison in trace event
2020-10-01 13:14:34 +02:00
mtrr.c
KVM: x86: Protect MSR-based index computations in fixed_msr_to_seg_unit() from Spectre-v1/L1TF attacks
2020-02-11 04:34:10 -08:00
page_track.c
treewide: kvzalloc() -> kvcalloc()
2018-06-12 16:19:22 -07:00
paging_tmpl.h
KVM: nVMX: Plumb L2 GPA through to PML emulation
2020-06-30 23:17:16 -04:00
pmu_amd.c
KVM: x86/pmu: mask the result of rdpmc according to the width of the counters
2019-06-19 08:18:04 +02:00
pmu_intel.c
KVM: x86: Protect pmu_intel.c from Spectre-v1/L1TF attacks
2020-02-11 04:34:09 -08:00
pmu.c
KVM: x86/vPMU: refine kvm_pmu err msg when event creation failed
2019-07-26 09:14:24 +02:00
pmu.h
KVM: x86: Protect MSR-based index computations in pmu.h from Spectre-v1/L1TF attacks
2020-02-11 04:34:10 -08:00
svm.c
KVM: x86: reinstate vendor-agnostic check on SPEC_CTRL cpuid bits
2021-01-06 14:44:59 +01:00
trace.h
KVM: x86: avoid misreporting level-triggered irqs as edge-triggered in tracing
2019-05-16 19:41:22 +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
vmx_evmcs.h
x86/kvm: use Enlightened VMCS when running on Hyper-V
2018-03-28 22:47:06 +02:00
vmx_shadow_fields.h
KVM: nVMX: track dirty state of non-shadowed VMCS fields
2018-01-16 16:50:13 +01:00
vmx.c
KVM: x86: reinstate vendor-agnostic check on SPEC_CTRL cpuid bits
2021-01-06 14:44:59 +01:00
x86.c
KVM: x86: Fix split-irqchip vs interrupt injection window request
2020-12-02 08:48:07 +01:00
x86.h
KVM: x86: Use gpa_t for cr2/gpa to fix TDP support on 32-bit KVM
2020-02-11 04:34:17 -08:00