Hello U-Boot lists!

I think I found a double free bug in U-Boot, in /cmp/gpt.c in the function 

On line 702 the partition_list is being free'd if ret is smaller than 0.
If the return value is not -ENOMEM it will go to the out: label and free the 
partition_list again.

Double freeing may result in a write-what-where condition, allowing an attacker 
to execute arbitrary code.

My advice would be to not free the parition_list on line 702 as nothing is 
being done with it there afterwards anyway and leave your clean_up in the out: 
label :)

Kind Regards,

Jordy Zomer

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