tree 636e7683ce010761d3713048814100fc824ac5fd
parent f14208e0390d8ee20ee4a5d7605d614e8b1abaf1
author Casey Dahlin <sadmac@google.com> 1477527505 -0700
committer gitbuildkicker <android-build@google.com> 1480531763 -0800

Fix integer overflow in unsafeReadTypedVector

Passing a size to std::vector that is too big causes it to silently
under-allocate when exceptions are disabled, leaving us open to an OOB
write. We check the bounds and the resulting size now to verify
allocation succeeds.

Test: Verified reproducer attached to bug no longer crashes Camera
      service.
Bug: 31677614

Change-Id: I064b1442838032d93658f8bf63b7aa6d021c99b7
(cherry picked from commit 65a8f07e57a492289798ca709a311650b5bd5af1)