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-rw-r--r--doc/doc-txt/ChangeLog8
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/doc-txt/ChangeLog b/doc/doc-txt/ChangeLog
index 6cd472434..c23f9fe2d 100644
--- a/doc/doc-txt/ChangeLog
+++ b/doc/doc-txt/ChangeLog
@@ -81,6 +81,14 @@ PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
+JH/16 Drop variables when they go out of scope. Memory management drops a whole
+ region in one operation, for speed, and this leaves assigned pointers
+ dangling. Add checks run only under the testsuite which checks all
+ variables at a store-reset and panics on a dangling pointer; add code
+ explicitly nulling out all the variables discovered. Fixes one known
+ bug: a transport crash, where a dangling pointer for $sending_ip_address
+ originally assigned in a verify callout, is re-used.
+
Exim version 4.88
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