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MDEV-24033: SIGSEGV in __memcmp_avx2_movbe from queue_insert | SIGSE…
…GV in __memcmp_avx2_movbe from native_compare The issue here was the system variable max_sort_length was being applied to decimals and it was truncating the value for decimals to the number of bytes set by max_sort_length. This was leading to a buffer overflow as the values were written to the buffer without truncation and then we moved the offset to the number of bytes(set by max_sort_length), that are needed for comparison. The fix is to not apply max_sort_length for fixed size types like INT, DECIMALS and only apply max_sort_length for CHAR, VARCHARS, TEXT and BLOBS.
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