Crashes with gpg-agent 2.1.18

[Justus Winter]

Justus Winter <justus at g10code.com> writes:

> [ Unknown signature status ]
> Patrick Brunschwig <patrick at enigmail.net> writes:
>
>> On 24.01.17 09:14, Patrick Brunschwig wrote:
>>> On 23.01.17 21:20, Daniel Kahn Gillmor wrote:
>>
>>> gpg-agent(58725,0x70000f710000) malloc: *** error for object
>>> 0x7f99f9703250: pointer being freed was not allocated
>>> *** set a breakpoint in malloc_error_break to debug
>>
>>
>> Here is how I can reproduce the issue on Mac OS X
>> 1. create a small encrypted file (e.g. x.asc)
>>
>> 2. Make sure gpg-agent currently caches your password
>>
>> 3. run the following loop:
>> for i in $(seq 1 20); do (gpg2 -d x.asc &) ; done
>>
>> This will crash gpg-agent almost certainly.
>
> Ugh.  I can reproduce this on Linux as well.  I'll look into that.

It was a double free.  Fixed in
e175152ef7515921635bf1e00383e812668d13fc.

Justus
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