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Attempt to modify the to-be-injected exception vector to an illegal value _after_ the sanity checks performed by KVM_CAP_SYNC_REGS's arch/x86/kvm/x86.c:kvm_vcpu_ioctl_x86_set_vcpu_events(). Buggy KVM versions will eventually yells loudly about attempting to inject a bogus vector, e.g. WARNING: CPU: 0 PID: 1107 at arch/x86/kvm/x86.c:547 kvm_check_and_inject_events+0x4a0/0x500 [kvm] arch/x86/kvm/x86.c:exception_type(): WARN_ON(vector > 31 || vector == NMI_VECTOR) Signed-off-by: Michal Luczaj <mhal@rbox.co> Link: https://lore.kernel.org/r/20230728001606.2275586-3-mhal@rbox.co [sean: split to separate patch] Signed-off-by: Sean Christopherson <seanjc@google.com> |
History
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| .. | ||
| crypto/chacha20-s390 | ||
| cxl | ||
| fault-injection | ||
| ktest | ||
| kunit | ||
| memblock | ||
| nvdimm | ||
| radix-tree | ||
| scatterlist | ||
| selftests | ||
| vsock | ||