Daniel Becker created IMPALA-11365: -------------------------------------- Summary: Dereferencing null pointer in TopNNode Key: IMPALA-11365 URL: https://issues.apache.org/jira/browse/IMPALA-11365 Project: IMPALA Issue Type: Bug Reporter: Daniel Becker Assignee: Daniel Becker
In the constructor of TopNNode, if {{pnode.partition_comparator_config_}} is NULL, we initialise {{partition_cmp_}} with a NULL pointer. However, when initialising {{{}partition_heaps_{}}}, we dereference {{partition_cmp_}} because {{ComparatorWrapper}} expects a reference. This has so far not lead to a crash because in this case the comparator of {{partition_heaps_}} is not used, but assigning a NULL pointer to a reference is undefined behaviour. -- This message was sent by Atlassian Jira (v8.20.7#820007) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-all-unsubscr...@impala.apache.org For additional commands, e-mail: issues-all-h...@impala.apache.org