diff --git a/contrib/pg_stat_statements/pg_stat_statements.c b/contrib/pg_stat_statements/pg_stat_statements.c
index 0070f0f33a..5fff558e4d 100644
--- a/contrib/pg_stat_statements/pg_stat_statements.c
+++ b/contrib/pg_stat_statements/pg_stat_statements.c
@@ -1077,6 +1077,8 @@ pgss_ProcessUtility(PlannedStmt *pstmt, const char *queryString,
 {
 	Node	   *parsetree = pstmt->utilityStmt;
 	uint64		saved_queryId = pstmt->queryId;
+	int			saved_stmt_location = pstmt->stmt_location;
+	int			saved_stmt_len = pstmt->stmt_len;
 
 	/*
 	 * Force utility statements to get queryId zero.  We do this even in cases
@@ -1142,6 +1144,16 @@ pgss_ProcessUtility(PlannedStmt *pstmt, const char *queryString,
 		}
 		PG_END_TRY();
 
+		/*
+		 * CAUTION: do not access the *pstmt data structure again below here.
+		 * If it was a ROLLBACK or similar, that data structure may have been
+		 * freed.  We must copy everything we still need into local variables,
+		 * which we did above.
+		 *
+		 * For the same reason, we can't risk restoring pstmt->queryId to its
+		 * former value, which'd otherwise be a good idea.
+		 */
+
 		INSTR_TIME_SET_CURRENT(duration);
 		INSTR_TIME_SUBTRACT(duration, start);
 
@@ -1166,8 +1178,8 @@ pgss_ProcessUtility(PlannedStmt *pstmt, const char *queryString,
 
 		pgss_store(queryString,
 				   saved_queryId,
-				   pstmt->stmt_location,
-				   pstmt->stmt_len,
+				   saved_stmt_location,
+				   saved_stmt_len,
 				   PGSS_EXEC,
 				   INSTR_TIME_GET_MILLISEC(duration),
 				   rows,