File _patchinfo of Package patchinfo.6470

<patchinfo incident="6470">
  <issue id="1074621" tracker="bnc">VUL-0: gcc: retpoline fixes for speculative side channel attacks on various CPU platforms aka "SpectreAttack" and "MeltdownAttack"</issue>
  <category>recommended</category>
  <rating>moderate</rating>
  <packager>msmeissn</packager>
  <description>
  
This update for gcc48 fixes the following issues:

Added support for generation of retpolines on x86_64. [bnc#1074621]

This support is used for building the Linux Kernel with retpoline support
to mitigate the Spectre Variant 2 attack.

New compiler options have been added to specify specific code generation:

* -mindirect-branch=keep
* -mindirect-branch=thunk
* -mindirect-branch=thunk-extern
* -mindirect-branch=thunk-inline
* -mindirect-branch-register
* -mfunction-return=keep
* -mfunction-return=thunk
* -mfunction-return=thunk-extern
* -mfunction-return=thunk-inline

</description>
  <summary>Recommended update for gcc48</summary>
</patchinfo>