Re: os_malloc and os_zallc HANGs forever and Triggers WDT

2019-03-12T07:41:57+08:00

I found the issue. After many burned hours I found that a buffer overflow was occurring.. To recreate the WDT issue, Alloc 8 bytes, write 9 then alloc again.. should hang indef due to a boundary pointer more than likely being overwritten.

Statistics: Posted by AgentSmithers — Tue Mar 12, 2019 7:41 am

os_malloc and os_zallc HANGs forever and Triggers WDT

2019-03-10T07:45:37+08:00

Hi Everyone, Anyone knows the underlying reason on why or how malloc and zalloc hang when exhausted out of memory vs. returning NULL or failure. It's hanging at that point then the WDT kicks off and if I disable the WDT both Software and Hardware it hangs forever and never returns. I was hoping it just needed more time to run logic to find space to allocate however that is not the issue. Any insight would be extremely helpful!
Thank you!!

Statistics: Posted by AgentSmithers — Sun Mar 10, 2019 7:45 am

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Re: os_malloc and os_zallc HANGs forever and Triggers WDT

os_malloc and os_zallc HANGs forever and Triggers WDT