Bad bounds check in v8. Credit to Aki Helin of OUSPG. Arches, please test and stabilize =dev-lang/v8-3.2.10.21
amd64 ok
amd64 done. Thanks Agostino
x86 stable Thanks
Thanks, folks. GLSA request filed.
This issue was resolved and addressed in GLSA 201111-01 at http://security.gentoo.org/glsa/glsa-201111-01.xml by GLSA coordinator Alex Legler (a3li).