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| author |   Jim Mattson <jmattson@google.com> | 2016-10-26 08:38:38 -0700 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2016-10-27 12:15:27 +0200 |
| commit | 85c856b39b479dde410ddd09df1da745343010c9 (patch) | |
| tree | 54e99503fc7d4abc2d6b573099566428c864c0d0 /arch/s390 | |
| parent | KVM: document lock orders (diff) | |
| download | linux-dev-85c856b39b479dde410ddd09df1da745343010c9.tar.xz linux-dev-85c856b39b479dde410ddd09df1da745343010c9.zip | |
kvm: nVMX: Fix kernel panics induced by illegal INVEPT/INVVPID types
Bitwise shifts by amounts greater than or equal to the width of the left
operand are undefined. A malicious guest can exploit this to crash a
32-bit host, due to the BUG_ON(1)'s in handle_{invept,invvpid}.
Signed-off-by: Jim Mattson <jmattson@google.com>
Message-Id: <1477496318-17681-1-git-send-email-jmattson@google.com>
[Change 1UL to 1, to match the range check on the shift count. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/s390')
0 files changed, 0 insertions, 0 deletions