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Bug#31588: buffer overrun when setting variables

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Buffer used when setting variables was not dimensioned to accomodate
trailing '\0'. An overflow by one character was therefore possible.
CS corrects limits to prevent such overflows.
This commit is contained in:
tnurnberg@sin.intern.azundris.com
2007-10-18 10:47:54 +02:00
parent 39f6cbc221
commit e6ef54b31f
3 changed files with 12 additions and 2 deletions
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3
mysql-test/r/variables.result
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@ -561,3 +561,6 @@ set @@query_prealloc_size = @test;
select @@query_prealloc_size = @test;
@@query_prealloc_size = @test
1
set global sql_mode=repeat('a',80);
ERROR 42000: Variable 'sql_mode' can't be set to the value of 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
End of 4.1 tests