diff options
| author | Nadav Amit <namit@cs.technion.ac.il> | 2015-01-01 23:11:11 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-29 17:40:45 -0800 |
| commit | cb2567bf3eed3c7fe5fd914d827e3088d21e565f (patch) | |
| tree | b3684403eef555bffcdfa19ce7424b6a654a1606 /drivers/thunderbolt/Makefile | |
| parent | c546e47591d7c8b4fa3dc2d9dae14c127f0c3b22 (diff) | |
KVM: x86: SYSENTER emulation is broken
commit f3747379accba8e95d70cec0eae0582c8c182050 upstream.
SYSENTER emulation is broken in several ways:
1. It misses the case of 16-bit code segments completely (CVE-2015-0239).
2. MSR_IA32_SYSENTER_CS is checked in 64-bit mode incorrectly (bits 0 and 1 can
still be set without causing #GP).
3. MSR_IA32_SYSENTER_EIP and MSR_IA32_SYSENTER_ESP are not masked in
legacy-mode.
4. There is some unneeded code.
Fix it.
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/thunderbolt/Makefile')
0 files changed, 0 insertions, 0 deletions