[vlc-devel] [PATCH 1/2] aout: use vlc_atomic_rc_t
Thomas Guillem
thomas at gllm.fr
Thu Mar 12 16:30:36 CET 2020
Set merged, thanks!
On Wed, Mar 11, 2020, at 12:54, Quentin Chateau wrote:
> Hi,
> ping on this patchset
> Have a nice day
> On 03/03/2020 11:30, Thomas Guillem wrote:
>> Yes for me.
>>
>> On Tue, Mar 3, 2020, at 11:23, Quentin Chateau wrote:
>>> Now that the helpers have been fixed, does this patchset look good to you ?
>>> On 21/02/2020 21:13, Quentin Chateau wrote:
>>>> Would fixing the generic helper by replacing the uint by a uintptr be enough ? That would fix all other parts of VLC using them at the same time.
>>>> On Feb 21, 2020, at 20:06, "Rémi Denis-Courmont" <remi at remlab.net> wrote:
>>>>> Le perjantaina 21. helmikuuta 2020, 19.32.24 EET Quentin Chateau a écrit :
>>>>>
>>>>>> I fail to see what you mean, can you please give me some more info so I
can meet your expectations:
1. Are you afraid of the counter overflowing the underlying unsigned int ?
>>>>>>
>>>>>
Yes.
>>>>>
>>>>>> 2. How is it worse than before ?
>>>>>>
>>>>>
This has already been discussed before. You can overflow uint on a 64-bits
platform. There's already been exploits on other programs doing exactly that.
You can't overflow uintptr_t since you can't have that many references in a
single address space (and it would take forever).
>>>>>
>>>>>> 3. What's the point of having helper functions for reference counting
if we should not use them ?
>>>>>>
>>>>>
Don't ask me. They're pointless as far as I can see.
>>>>>
>>>>
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