Luca Boccassi
058b0de7bf
The CAN_HASH branch of bus_match_run() that iterates the array values of
an argNhas= match dispatches a callback per value but, unlike the leaf
and manual-iteration branches, does not re-check bus->match_callbacks_modified
afterwards. A callback that adds or removes a match (freeing the node)
would then have the next hashmap_get(node->compare.children, ...) read
freed memory. Add the same check the sibling branches already have.
Follow-up for 198b158f49
System and Service Manager
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