[Issue 10597] slapo-accesslog frees a shared `entryUUID` value from operations that do not hold the mutex guarding it, causing a double free and heap corruption. Introduced in 2.6.14 by the fix for ITS#10482.

https://bugs.openldap.org/show_bug.cgi?id=10597

--- Comment #1 from jukka.karvonen@helsinki.fi --- We noticed this yesterday with one upgrade. Couldn't identify the reason, other than incoming syncrepl connection seemed to terminate to "free(): invalid pointer" error with versions newer than 2.6.13. We have had some nodes running 2.6.14 for couple of weeks and those didn't seem to be affected, but they also didn't get as much load and no writes, other than syncrepl.

Today was trying to reproduce this, until noticed this issue. Error usually happened when getting syncrepl connection while writing new objects. After one failure, new slapd process seemed to terminate immediately when receiving syncrepl connection from other node.