[mosh-users] mosh-server fails to start on grsecurity kernel

[Alex Chernyakhovsky]

Unfortunately, that's not much to go on. Could you grab the core file
and get a backtrace? I'm assuming some syscall (probably malloc?)
failed.

Sincerely,
-Alex

On Tue, Jun 7, 2016 at 12:18 AM, Deven Lahoti <deywos at mit.edu> wrote:
> I don't think that's the problem, since it's now giving me:
> mosh-server[21489]: segfault at 0 ip           (null) sp 00007fffffffcbd8
> error 14 in mosh-server[555555554000+60000]
>
> On Mon, Jun 6, 2016 at 11:42 PM, Alex Chernyakhovsky <achernya at mit.edu>
> wrote:
>>
>> I think the offending line is
>>
>> Jun 06 22:32:19 <hostname> kernel: PAX: From 18.X.X.X: execution
>> attempt in: (null), 00000000-00000000 00000000
>> Jun 06 22:32:19 <hostname> kernel: PAX: terminating task:
>> /usr/bin/mosh-server(mosh-server):12505, uid/euid: XXXX/XXXX, PC:
>>       (nil), SP: 000003844385a508
>>
>> mosh-server needs to fork and exec to start subprocesses, and your
>> kernel/configuration doesn't consider mosh-server to be in the
>> whitelist.
>>
>> Sincerely,
>> -Alex
>>
>>
>> On Mon, Jun 6, 2016 at 11:30 PM, Deven Lahoti <deywos at mit.edu> wrote:
>> > Hi, when trying to connect to my machine running Gentoo Hardened on
>> > kernel
>> > 4.4.8, mosh-server fails to start. Here are the logs (modified to remove
>> > personal info) [http://web.mit.edu/deywos/www/mosh.log]. I'm not really
>> > sure
>> > what the problem is, and I don't know much about how mosh works, so I
>> > was
>> > hoping someone here could help me out.
>> >
>> > Thanks,
>> > Deven
>> >
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>> > mosh-users at mit.edu
>> > http://mailman.mit.edu/mailman/listinfo/mosh-users
>> >
>
>