test/expected/LWN/0000764209.header

   1 0[$] Strengthening user-space Spectre v2 protection     null/LWN/0000764209             70
   2 i  [Kernel] Sep 5, 2018 21:47 UTC (Wed) (corbet)
   3 i
   4 i    The  Spectre  variant  2  vulnerability  allows the speculative
   5 i    execution   of  incorrect  (in  an  attacker-controllable  way)
   6 i    indirect  branch  predictions,  resulting  in  the  ability  to
   7 i    exfiltrate  information  via side channels. The kernel has been
   8 i    reasonably  well  protected  against this variant since shortly
   9 i    after  its  disclosure in January. It is, however, possible for
  10 i    user-space  processes  to  use Spectre v2 to attack each other;
  11 i    thus  far,  the  mainline  kernel has offered relatively little
  12 i    protection  against  such  attacks. A recent proposal from Jiri
  13 i    Kosina  may  change  that  situation,  but there are still some
  14 i    disagreements around the details.
  15 i