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/freebsd-11-stable/sys/amd64/vmm/amd/
H A Dsvm_support.Sdiff 330704 Fri Mar 09 19:39:41 MST 2018 tychon MFC r328011,329162

r328011:

Provide some mitigation against CVE-2017-5715 by clearing registers
upon returning from the guest which aren't immediately clobbered by
the host. This eradicates any remaining guest contents limiting their
usefulness in an exploit gadget.

r329162:

Provide further mitigation against CVE-2017-5715 by flushing the
return stack buffer (RSB) upon returning from the guest.
/freebsd-11-stable/sys/amd64/vmm/intel/
H A Dvmcs.cdiff 330704 Fri Mar 09 19:39:41 MST 2018 tychon MFC r328011,329162

r328011:

Provide some mitigation against CVE-2017-5715 by clearing registers
upon returning from the guest which aren't immediately clobbered by
the host. This eradicates any remaining guest contents limiting their
usefulness in an exploit gadget.

r329162:

Provide further mitigation against CVE-2017-5715 by flushing the
return stack buffer (RSB) upon returning from the guest.
H A Dvmx_support.Sdiff 330704 Fri Mar 09 19:39:41 MST 2018 tychon MFC r328011,329162

r328011:

Provide some mitigation against CVE-2017-5715 by clearing registers
upon returning from the guest which aren't immediately clobbered by
the host. This eradicates any remaining guest contents limiting their
usefulness in an exploit gadget.

r329162:

Provide further mitigation against CVE-2017-5715 by flushing the
return stack buffer (RSB) upon returning from the guest.
H A Dvmx.hdiff 330704 Fri Mar 09 19:39:41 MST 2018 tychon MFC r328011,329162

r328011:

Provide some mitigation against CVE-2017-5715 by clearing registers
upon returning from the guest which aren't immediately clobbered by
the host. This eradicates any remaining guest contents limiting their
usefulness in an exploit gadget.

r329162:

Provide further mitigation against CVE-2017-5715 by flushing the
return stack buffer (RSB) upon returning from the guest.

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