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  1. Qt
  2. QTBUG-92113

QXmlStreamReader freezes

    XMLWordPrintable

Details

    • Bug
    • Resolution: Unresolved
    • P1: Critical
    • None
    • 5.15.2, 6.0.2, 6.3.0
    • XML: Stream Reader/Writer
    • Ubuntu 20.04 LTS
      clang 10.0.0, g++ 9.3.0

    Description

      1. Build the attached project.
        Normal release build, no sanitizers needed.
      2. Run it on the attached input file: 
        ./report input.xml

        It won't finish. It's running here for ten minutes of CPU time now, with constant low memory consumption:

            PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND  
  38446 qtrob     20   0   75260  34172   7068 R 100.0   0.2  10:04.04 report

      Google's oss-fuzz found this as issue 30973. It will be published on May 17th, the latest.

      Attachments

        1. input.xml
          387 kB
        2. main.cpp
          0.2 kB
        3. report.pro
          0.0 kB

        Activity

          People

            thiago Thiago Macieira
            rlohning Robert Löhning
            Vladimir Minenko Vladimir Minenko
            Alex Blasche Alex Blasche
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            Dates

              Created:
              Updated: