[sudo-users] SegFault/BusError on FreeBSD

Samuel Denbigh Leslie samuel.denbigh.leslie at gmail.com
Wed Feb 1 12:18:08 EST 2012

Hi Todd,

Thanks for your reply. I've built a lab setup in a VM and have 
reproduced the problem using the same version of PBIS and sudo 1.8.4rc1 
as requested. Please find attached two debug logs: sudo_debug.local 
(sudo from a local account -> works fine) and sudo_debug.ad (sudo from 
an AD account -> segfault).


On 31/01/2012 3:27 AM, Todd C. Miller wrote:
> On Thu, 26 Jan 2012 19:46:07 +1100, Samuel Denbigh Leslie wrote:
>> I recently compiled&  installed sudo from ports on a FreeBSD 8.2 x64
>> box; version 1.8.3p1 w/ insults&  LDAP support. The box also has
>> BeyondTrust PowerBroker Identity Services (Open Edition) installed for
>> integration with an Active Directory domain. Whenever trying to sudo
>> logged in as an AD user, we either get a Segmentation Fault or a Bus
>> Error (which one seems to be largely random). When logged in as a local
>> user, sudo seems to work absolutely fine.
> That sounds like a problem related to the PAM modules used by
> PowerBroker Identity Services.
> Please try ftp://ftp.sudo.ws/pub/sudo/beta/sudo-1.8.4rc1.tar.gz and
> see if it has the same problem (I expect it will).  If so, add the
> following line to /etc/sudo.conf (creating it if it doesn't already
> exist).
> Debug sudo /var/log/sudo_debug auth at trace
> The tail end of /var/log/sudo_debug should give me an idea of where
> sudo is dying.
>   - todd

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