RFR: 8262295: C2: Out-of-Bounds Array Load from Clone Source [v3]

Richard Reingruber rrich at openjdk.java.net
Tue Mar 23 08:57:57 UTC 2021


On Tue, 23 Mar 2021 07:10:35 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

>> Richard Reingruber has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Avoid overflow in expression sizetype->_lo * elemsize + header
>
> src/hotspot/share/opto/memnode.cpp line 552:
> 
>> 550:       const TypeInt* sizetype  = ary_t->size();
>> 551: 
>> 552:       if (ld_offs_t->_lo >= header && ld_offs_t->_hi < sizetype->_lo * elemsize + header) {
> 
> Please add parentheses around `sizetype->_lo * elemsize + header`.

Done.

-------------

PR: https://git.openjdk.java.net/jdk/pull/2708


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