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| author | Nadav Amit <namit@cs.technion.ac.il> | 2014-10-13 13:04:14 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-10-24 13:30:36 +0200 |
| commit | 3f6f1480d86bf9fc16c160d803ab1d006e3058d5 (patch) | |
| tree | 988959255d9ac2f34c7fbc95af889f31ee4ef9d0 /virt/kvm/iommu.c | |
| parent | 13e457e0eebf0a0c82c38ceb890d93eb826d62a6 (diff) | |
KVM: x86: PREFETCH and HINT_NOP should have SrcMem flag
The decode phase of the x86 emulator assumes that every instruction with the
ModRM flag, and which can be used with RIP-relative addressing, has either
SrcMem or DstMem. This is not the case for several instructions - prefetch,
hint-nop and clflush.
Adding SrcMem|NoAccess for prefetch and hint-nop and SrcMem for clflush.
This fixes CVE-2014-8480.
Fixes: 41061cdb98a0bec464278b4db8e894a3121671f5
Cc: stable@vger.kernel.org
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt/kvm/iommu.c')
0 files changed, 0 insertions, 0 deletions