diff options
| author | Yu Zhang <yu.c.zhang@linux.intel.com> | 2017-09-18 18:45:01 +0800 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2017-09-19 14:28:58 +0200 |
| commit | d6500149bc4fddc5a91cd1a0c31b38fa36bff3ee (patch) | |
| tree | 63bebe3b669b051526b608e50db1fbdc4c753d94 /lib | |
| parent | 95e2a3b3ef177730019e3799917193595133b275 (diff) | |
KVM: x86: Fix the NULL pointer parameter in check_cr_write()
Routine check_cr_write() will trigger emulator_get_cpuid()->
kvm_cpuid() to get maxphyaddr, and NULL is passed as values
for ebx/ecx/edx. This is problematic because kvm_cpuid() will
dereference these pointers.
Fixes: d1cd3ce90044 ("KVM: MMU: check guest CR3 reserved bits based on its physical address width.")
Reported-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Yu Zhang <yu.c.zhang@linux.intel.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions