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  1. MariaDB Server
  2. MDEV-21521

UBSan crashes in MYSQL_BIN_LOG::open

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      Attempt to run MTR under UBSan causes crashes like this one:

      Thread 1 (Thread 0x7f585614f380 (LWP 14002)):
      #0  __pthread_kill (threadid=<optimized out>, signo=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:57
      #1  0x0000559f4b17eb78 in my_write_core (sig=11) at /home/psergey/dev-git2/10.5/mysys/stacktrace.c:518
      #2  0x0000559f49ae241c in handle_fatal_signal (sig=11) at /home/psergey/dev-git2/10.5/sql/signal_handler.cc:343
      #3  <signal handler called>
      #4  0x00007f5852e82153 in ?? () from /usr/lib/x86_64-linux-gnu/libubsan.so.0
      #5  0x00007f5852e80df6 in ?? () from /usr/lib/x86_64-linux-gnu/libubsan.so.0
      #6  0x00007f5852e815a1 in __ubsan_handle_dynamic_type_cache_miss () from /usr/lib/x86_64-linux-gnu/libubsan.so.0
      #7  0x0000559f4a08bfdf in MYSQL_BIN_LOG::open (this=0x559f4f6a75e0 <mysql_bin_log>, log_name=0x559f50722bf8 "master-bin", new_name=0x0, next_log_number=0, io_cache_type_arg=WRITE_CACHE, max_size_arg=1073741824, null_created_arg=false, need_mutex=true) at /home/psergey/dev-git2/10.5/sql/log.cc:3681
      #8  0x0000559f48a81cc8 in init_server_components () at /home/psergey/dev-git2/10.5/sql/mysqld.cc:5198
      #9  0x0000559f48a82d3c in mysqld_main (argc=156, argv=0x559f50608c20) at /home/psergey/dev-git2/10.5/sql/mysqld.cc:5552
      #10 0x0000559f48a6fcaa in main (argc=25, argv=0x7ffe494fbc88) at /home/psergey/dev-git2/10.5/sql/main.cc:25
      

      a few tests that crashed here:

      main.mysqlbinlog_row_compressed
      main.session_tracker_last_gtid 'innodb'  w4 [ fail ]
      main.mysqlbinlog-innodb 'innodb'         w1 [ fail ]
      main.tc_heuristic_recover 'innodb'       w4 [ fail ]
      

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              sujatha.sivakumar Sujatha Sivakumar (Inactive)
              psergei Sergei Petrunia
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                Updated:
                Resolved:

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