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| author | Yu Zhang <[email protected]> | 2017-09-18 10:45:01 +0000 |
|---|---|---|
| committer | Radim Krčmář <[email protected]> | 2017-09-19 12:28:58 +0000 |
| commit | d6500149bc4fddc5a91cd1a0c31b38fa36bff3ee (patch) | |
| tree | 63bebe3b669b051526b608e50db1fbdc4c753d94 /tools/perf/scripts/python | |
| parent | Revert "KVM: Don't accept obviously wrong gsi values via KVM_IRQFD" (diff) | |
| download | kernel-d6500149bc4fddc5a91cd1a0c31b38fa36bff3ee.tar.gz kernel-d6500149bc4fddc5a91cd1a0c31b38fa36bff3ee.zip | |
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 <[email protected]>
Signed-off-by: Yu Zhang <[email protected]>
Reviewed-by: David Hildenbrand <[email protected]>
Reviewed-by: Jim Mattson <[email protected]>
Signed-off-by: Radim Krčmář <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions