Vicențiu Ciorbaru 5edd129fbf Fix ASAN failure in main.lock (and others) ...

Whenever one copies an IO_CACHE struct, one must remember to call
setup_io_cache, if not, the IO_CACHE's current_pos and end_pos
self-references will point to the previous struct's memory, which
could go out of scope. Commit 9003869390
fixes this problem in a more general fashion by removing the
self-references altogether, but for 5.5 we'll keep the old behaviour.

2018-01-30 21:13:24 +02:00

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