This bug was fixed in the package krb5-auth-dialog - 3.20.0-3
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krb5-auth-dialog (3.20.0-3) unstable; urgency=medium
* [5a7fe1c] Don't depend on unused libnm-glib-dev (Closes: #823568)
* [1455a30] credentials_expiring_real: check if kcontext is valid
(LP: #1700468)
*
Confirmed that this fixes the segfault for me when applied to version
3.20.0. Thanks :)
(Figured this would be easy to reproduce...)
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Title:
On Thu, Jul 06, 2017 at 08:33:06PM -, Daniel Richard G. wrote:
> Er...
>
> $ klist -v
> klist: invalid option -- 'v'
> Usage: klist [-e] [-V] [[-c] [-l] [-A] [-d] [-f] [-s] [-a [-n]]] [-k [-t]
> [-K]] [name]
> [...]
>
> Remember, the segfault occurs with a user that is
Er...
$ klist -v
klist: invalid option -- 'v'
Usage: klist [-e] [-V] [[-c] [-l] [-A] [-d] [-f] [-s] [-a [-n]]] [-k [-t]
[-K]] [name]
[...]
Remember, the segfault occurs with a user that is local-only. Kerberos
infrastructure is installed on the system, but the user has no
Hi Daniel,
On Wed, Jul 05, 2017 at 10:38:35PM -, Daniel Richard G. wrote:
> Hi Guido, I think you mean "klist -V" (uppercase) :-)
>
> On the system in question, that returns
>
> $ klist -V
> Kerberos 5 version 1.13.2
Thath's useful too but I meant "klist -v" to get your ticket
Hi Guido, I think you mean "klist -V" (uppercase) :-)
On the system in question, that returns
$ klist -V
Kerberos 5 version 1.13.2
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Hi Daniel,
On Fri, Jun 30, 2017 at 04:39:15AM -, Daniel Richard G. wrote:
> Attached is a Valgrind log file produced from a debug build of k-a-d
> version 3.20.0.
>
> All the errors appear to be accesses within freed memory...
Yeah that look suspicious. Can you either post (or send via
Attached is a Valgrind log file produced from a debug build of k-a-d
version 3.20.0.
All the errors appear to be accesses within freed memory...
** Attachment added: "kad-valgrind-log.txt"
On Tue, Jun 27, 2017 at 07:49:07PM -, Daniel Richard G. wrote:
> Hunh. How odd... I can't imagine that there would be something
> particular to this system that is causing the crash. As you requested:
>
> skunk@darkstar:/tmp/krb5-auth-dialog-3.20.0/_build/src$ G_MESSAGES_DEBUG=all
>
Hunh. How odd... I can't imagine that there would be something
particular to this system that is causing the crash. As you requested:
skunk@darkstar:/tmp/krb5-auth-dialog-3.20.0/_build/src$ G_MESSAGES_DEBUG=all
./krb5-auth-dialog -a
(krb5-auth-dialog:16500): KrbAuthDialog-DEBUG:
I can't reproduce here neither when linked against MIT (as in Debian)
nor against heimdal (as in Xenial). Can you do a
G_MESSAGES_DEBUG=all ./src/krb5-auth-dialog -a
maybe this shows s.th. interesting before the crash.
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I'm afraid I see the same failure mode with 3.20. The GDB session is
below.
(You're not able to reproduce this? This is a system with all the
Kerberos infrastructure, but a local-only user---no KRB* envvars set)
$ gdb --args /tmp/krb5-auth-dialog-3.20.0/_build/src/krb5-auth-dialog --auto
GNU
But it seems ka_krb5_context_init got called (you can check
kcontext_valid == TRUE) so in this case it got corrupted. Any chance you
can check 3.20?
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