diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-10-01 09:21:23 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-11 18:36:51 +0200 |
| commit | 0cf37ebc5a7afcdecf0db65a37bd159bf2ceb029 (patch) | |
| tree | 6189e744eaf965546cd6aa0670e4643369048518 /net/lapb/lapb_timer.c | |
| parent | 01dadc31ec1b8885ebc3a729b5748a0aaeba6fba (diff) | |
KVM: nVMX: Fix consistency check on injected exception error code
[ Upstream commit 567926cca99ba1750be8aae9c4178796bf9bb90b ]
Current versions of Intel's SDM incorrectly state that "bits 31:15 of
the VM-Entry exception error-code field" must be zero. In reality, bits
31:16 must be zero, i.e. error codes are 16-bit values.
The bogus error code check manifests as an unexpected VM-Entry failure
due to an invalid code field (error number 7) in L1, e.g. when injecting
a #GP with error_code=0x9f00.
Nadav previously reported the bug[*], both to KVM and Intel, and fixed
the associated kvm-unit-test.
[*] https://patchwork.kernel.org/patch/11124749/
Reported-by: Nadav Amit <namit@vmware.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions