eldenmoon opened a new pull request, #28536:
URL: https://github.com/apache/doris/pull/28536
…_in_blocks`
Otherwise using the stale `_row_in_blocks` will result in heap-use-after-free
```
==2695213==ERROR: AddressSanitizer: heap-buffer-overflow on address
0x62900122e210 at pc 0x56524744aecf bp 0x7f62c595ef7
0 sp 0x7f62c595ef68
READ of size 8 at 0x62900122e210 thread T1627 (MemTableFlushTh)
#0 0x56524744aece in
doris::vectorized::ColumnVector<long>::insert_indices_from(doris::vectorized::IColumn
const&, unsigned int const*, unsigned int const*)
/mnt/disk2/lihangyu/doris/be/src/vec/columns/column_vector.cpp:378:33
#1 0x5652472a7538 in
doris::vectorized::ColumnNullable::insert_indices_from(doris::vectorized::IColumn
const&, unsigned int const*, unsigned int const*)
/mnt/disk2/lihangyu/doris/be/src/vec/columns/column_nullable.cpp:310:25
#2 0x56524782a62a in
doris::vectorized::MutableBlock::add_rows(doris::vectorized::Block const*,
unsigned int const*, unsigned int const*)
/mnt/disk2/lihangyu/doris/be/src/vec/core/block.cpp:961:14
#3 0x565233f187ae in
doris::MemTable::_put_into_output(doris::vectorized::Block&)
/mnt/disk2/lihangyu/doris/be/src/olap/memtable.cpp:248:27
#4 0x565233f1db66 in doris::MemTable::to_block()
/mnt/disk2/lihangyu/doris/be/src/olap/memtable.cpp:496:13
#5 0x565233efae60 in
doris::FlushToken::_do_flush_memtable(doris::MemTable*, int, long*)
/mnt/disk2/lihangyu/doris/be/src/olap/memtable_flush_executor.cpp:121:62
#6 0x565233efc8d6 in
doris::FlushToken::_flush_memtable(doris::MemTable*, int, long)
/mnt/disk2/lihangyu/doris/be/src/olap/memtable_flush_executor.cpp:150:16
#7 0x565233f0c5eb in doris::MemtableFlushTask::run()
/mnt/disk2/lihangyu/doris/be/src/olap/memtable_flush_executor.cpp:58:23
```
## Proposed changes
Issue Number: close #xxx
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