[Tails-dev] KeePassX not releasing the lock when shutting do…

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Autore: sajolida
Data:  
To: The Tails public development discussion list
Oggetto: [Tails-dev] KeePassX not releasing the lock when shutting down Tails
Hi,

Yesterday I followed up on a Debian bug against KeePassX that I think
affects Tails as well. Now I'm a bit lost in the technical details
behind this. If someone else could have a look and answer for me, it
might prevent me from saying silly things :)

https://bugs.debian.org/658312

Felix Geyer:
> On 11.08.2015 22:38, sajolida wrote:
>> Hi, I can confirm that this bug also happens in Tails
>> (https://tails.boum.org/) on both our stable version (based on Wheezy)
>> and our development version (based on Jessie).
>>
>> The consequences here are similar: if Tails is shut down while KeePassX
>> is still open, then on the next reboot, KeePassX opens with a warning
>> about "The database you are trying to open is locked".
>>
>> This behavior can be triggered by sending the SIGINT signal to KeePassX
>> (for example using `kill -s INT`).
>>
>> KeePassX should instead close the database gracefully and release any
>> lock when received SIGINT.
>
> What kind of desktop session is Tails running?
>
> KeePassX doesn't setup any signal handlers so sending SIGINT or SIGTERM
> will just kill it.
> However it does react to requests from the X session manager.
> It ask whether to save changes, remove the lock file etc.
> Tested on KDE and Gnome 3.