tree bbb360b22abbcdc86df5bc5a096045e58b3e3c68
parent d780dcbaa5986f6e88f812d743d33d17b3f9a8e1
author Colin Cross <ccross@android.com> 1543453319 -0800
committer Colin Cross <ccross@android.com> 1543518176 -0800

Validate allocations against mappings

Bug 120032857 is seeing what appears to be allocations with incorrect
end addresses, leading to a much later crash when it tries to map
a zero page outside the valid virtual address space.  Detect allocations
that extend outside the highest or lowest memory mapping and crash
immediately instead.

Test: memunreachable_test
Bug: 120032857
Change-Id: I9be670a025143e7078360a6bf7a83219279614d9