[REG 6.2.2 -> 6.2.3] Loading particular svg file takes far too long

1. Have a build of Qt including qtsvg.
   No sanitizers needed.
2. Build the attached project:

   qt-cmake /tmp/report/ && cmake --build .
   

3. Run the resulting binary passing the attached input file as parameter:

   ./report /tmp/report/56011.svg
   

   This is completely occupying a full CPU for more than two minutes.

Google's oss-fuzz found this as issue 56011. They will publish the details on May 16th. You can find a backtrace in their detailed report.