tree 02f476a662d7c52e7f70aabc81536903be12be43
parent 79cb0059113603f7226b52fa73442c16707f8bb4
author Peter Collingbourne <peter@pcc.me.uk> 1620939316 -0700
committer Copybara-Service <copybara-worker@google.com> 1621995035 -0700

scudo: Fix MTE error reporting for zero-sized allocations.

With zero-sized allocations we don't actually end up storing the
address tag to the memory tag space, so store it in the first byte of
the chunk instead so that we can find it later in getInlineErrorInfo().

Differential Revision: https://reviews.llvm.org/D102442

GitOrigin-RevId: f79929aceae966f9419cfc00c275e5e60bd0ee54