Re: [PATCH v2] arm: print alloc free paths for address in registers

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On 3/11/21 11:51 AM, Maninder Singh wrote:
> Hi,
> 
>  
> 
>> Instead of your changes to SL*B, could you check mem_dump_obj() and others added
>> by Paul in 5.12-rc1?
> 
>> (+CC Paul, thus not trimming)
> 
>  
> 
> checked mem_dump_obj(), but it only provides path of allocation and not of free.
> 
> /**
>  * mem_dump_obj - Print available provenance information
> 
> ..
> 
>  * if available, the return address and stack trace from the allocation
>  * of that object.
>  */
> void mem_dump_obj(void *object)
> 
> and in case of "Use After Free", Free path is also required.
> 
> So we need to add support for free path in this API if we have to use it.

I think that would make sense.  

> Thanks,
> 
> Maninder Singh
> 






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