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  1. MariaDB Server
  2. MDEV-34063

UBSAN: runtime error: signed integer overflow: 2148 * 1000000 cannot be represented in type 'int'

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      # mysqld options required for replay:  --thread_handling=pool-of-threads
      SET GLOBAL thread_pool_stall_limit=2148;  # >=2148 triggers the issue
      

      Valid values for thread-pool-stall-limit are 10 to 4294967295. However, when using >= 2148, we see this UBSAN error:

      11.5.0 3f9182126c64bcec359bebe9ebad2a0e559b13e2 (Debug)

      /test/11.5_dbg_san/sql/threadpool_generic.cc:572:5: runtime error: signed integer overflow: 2148 * 1000000 cannot be represented in type 'int'
          #0 0x56219dda558b in timer_thread /test/11.5_dbg_san/sql/threadpool_generic.cc:572
          #1 0x1553aca8f189 in start_thread nptl/pthread_create.c:444
          #2 0x1553acb1dbcf in clone3 ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
      

      Setup:

      Compiled with a recent version of GCC (I use GCC 12.3.0) and:
          -DWITH_ASAN=ON -DWITH_ASAN_SCOPE=ON -DWITH_UBSAN=ON -DWSREP_LIB_WITH_ASAN=ON
      Set before execution:
          export ASAN_OPTIONS=quarantine_size_mb=512:atexit=0:detect_invalid_pointer_pairs=3:dump_instruction_bytes=1:abort_on_error=1:allocator_may_return_null=1
      

      Present in 10.5-11.5 dbg+opt.

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            wlad Vladislav Vaintroub
            Roel Roel Van de Paar
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