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MDEV-33622 Server crashes when the UPDATE statement (which has duplicate key) is run after setting a low thread_stack

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This was caused by wrong allocation of variable on stack.
(Was allocating 4K of data instead of 512 bytes).

No test case as the original MDEV test cases is not usable for mtr.
This commit is contained in:
Monty
2024-03-12 18:23:51 +02:00
parent 4ac8c4c820
commit cfa8268ef9
2 changed files with 2 additions and 1 deletions
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sql/sql_update.cc
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@ -257,7 +257,7 @@ static void prepare_record_for_error_message(int error, TABLE *table)
Field *field;
uint keynr;
MY_BITMAP unique_map; /* Fields in offended unique. */
my_bitmap_map unique_map_buf[bitmap_buffer_size(MAX_FIELDS)];
my_bitmap_map unique_map_buf[bitmap_buffer_size(MAX_FIELDS)/sizeof(my_bitmap_map)];
DBUG_ENTER("prepare_record_for_error_message");
/*