SVNews r329162

NOTE: This service is experimental and subject to change! Use at your own risk!

2018-02-12 14:45:27 - r329162 by tychon (tychon)

Complete list of files affected by revision r329162:

(Note: At the moment, these links point to ViewVC on svn.freebsd.org. They are probably slow. Do not overuse.)

  History   Contents   Diff   MODIFY   /head/sys/amd64/vmm/amd/svm_support.S  
  History   Contents   Diff   MODIFY   /head/sys/amd64/vmm/intel/vmcs.c  
  History   Contents   Diff   MODIFY   /head/sys/amd64/vmm/intel/vmx.h  
  History   Contents   Diff   MODIFY   /head/sys/amd64/vmm/intel/vmx_support.S  

Commit message:

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

This was inspired by this linux commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch/x86/kvm?id=117cc7a908c83697b0b737d15ae1eb5943afe35b

Reviewed by: grehan
Sponsored by: Dell EMC Isilon
Differential Revision: https://reviews.freebsd.org/D14272

 


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