[erlang-bugs] UBsan int overflows

[Lukas Larsson]

On 26/11/14 12:29, Tuncer Ayaz wrote:
> On Tue, Sep 23, 2014 at 11:05 AM, Tuncer Ayaz wrote:
>> On Mon, Sep 22, 2014 at 12:02 PM, Lukas Larsson wrote:
>>> On 17/09/14 19:23, Tuncer Ayaz wrote:
>>>> On Wed, Sep 17, 2014 at 2:33 PM, Tuncer Ayaz wrote:
>>>>> Building OTP-17.3 with --enable-sanitizers=undefined, you can see
>>>>> the following during the build of lib/wx/examples/demo:
>>>>>    ERLC   ex_aui.beam
>>>>> beam/bif.c:2828:5: runtime error: signed integer overflow:
>>>>> 426141286 * 10 cannot be represented in type 'int'
>>>>>
>>>>> I thought this was also fixed.
>>> As did I. I wonder where that fix went... I've created a new fix
>>> for it.
>>>
>>>> More during dialyzer --build_plt:
>>>> beam/erl_process.c:9024:2: runtime error: signed integer overflow:
>>>> 2147482509 + 2001 cannot be represented in type 'int'
>>>> beam/erl_process.c:4908:35: runtime error: signed integer overflow:
>>>> 3984 * 625175 cannot be represented in type 'int'
>>>>
>>> I've noticed these as well and a couple of other ones in
>>> erl_process.c. I've added them to our backlog to fix.
>> Thanks, and please keep us posted.
> What's the status?

bif.c has been fixed, erl_process.c has not been fixed yet.