[tor-commits] [tor/master] Add a changelog for the STACK fixes

[nickm@xxxxxxxxxxxxxx]

commit 35d56a127d9af913f0f74ec359b182fa33f49c50
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
Date:   Sun Nov 26 17:37:36 2017 -0500

    Add a changelog for the STACK fixes
---
 changes/stack | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/changes/stack b/changes/stack
new file mode 100644
index 000000000..ffdf536cb
--- /dev/null
+++ b/changes/stack
@@ -0,0 +1,7 @@
+  o Minor bugfixes (correctness):
+    - Fix several places in our codebase where a C compiler would be likely
+      to eliminate a check, based on assuming that undefined behavior had not
+      happened elsewhere in the code.  These cases are usually a sign of
+      redundant checking, or dubious arithmetic. Found by Georg Koppen using
+      the "STACK" tool from Wang, Zeldovich, Kaashoek, and
+      Solar-Lezama. Fixes bug 24423; bugfix on various Tor versions.



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