linux-kernel - Re: Undefined Instruction

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 2 Nov 2011 17:14:17 -0400
From:	Xin Tong <xerox.time.tech@...il.com>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Undefined Instruction

There must be a default handler install for every application on linux
, right  ? Is there any signal that the operating system simply kills
the programs without sending a signal to the user level ?

Thanks

Xin

On Wed, Nov 2, 2011 at 5:10 PM, Jiri Kosina <jkosina@...e.cz> wrote:
> On Wed, 2 Nov 2011, Xin Tong wrote:
>
>> If i change the kernel, i could have the application stary alive right ?
>
> No need for any kernel changes. You can set your own signal handler for
> SIGILL (but iirc that will make any further behavior of your application
> undefined as long as POSIX is involved).
>
> --
> Jiri Kosina
> SUSE Labs
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/