[18968] in Kerberos_V5_Development
RE: krb5_cc_default crash
daemon@ATHENA.MIT.EDU (Tim Vega)
Fri Aug 8 23:37:34 2014
From: Tim Vega <tvega@tableausoftware.com>
To: Benjamin Kaduk <kaduk@MIT.EDU>
Date: Fri, 8 Aug 2014 22:46:51 +0000
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I solved the issue, I neglected to add krb5cc32.dll to the apache bin folder.
-----Original Message-----
From: Benjamin Kaduk [mailto:kaduk@MIT.EDU]
Sent: Friday, August 08, 2014 3:26 PM
To: Tim Vega
Cc: krbdev@mit.edu
Subject: Re: krb5_cc_default crash
On Thu, 7 Aug 2014, Tim Vega wrote:
> Hi,
>
> I'm trying to get S4U2proxy to work with mod_auth_kerb. I compiled the patch here,http://sourceforge.net/p/modauthkerb/mailman/message/28531618/, into mod_auth_kerb but it crashes on a call to krb5_cc_default.
>
> The offending line is line 283 of stdcc.c:
> err = cc_initialize (&gCntrlBlock, ccapi_version_max, &gCCVersion,
> NULL);
>
> Disassembly (the break is at the add instruction):
> err = cc_initialize (&gCntrlBlock, ccapi_version_max, &gCCVersion, NULL);
> 6647164A push 0
> 6647164C push offset _gCCVersion (665A5DE4h)
> 66471651 push 7
> 66471653 push offset _gCntrlBlock (665A5DE0h)
> 66471658 call dword ptr [_pcc_initialize (665A7048h)]
> 6647165E add esp,10h
> 66471661 mov dword ptr [err],eax
>
> _pcc_initialize watched values:
> _pcc_initialize 0x665a7048 _pcc_initialize void *
> *(long *)_pcc_initialize 0 long
>
> Any help would be greatly appreciated!
It somehow seems more likely that the crash would be inside
cc_initialize() than on the stack pointer adjustment after the call.
There is no information about ccapi_context.c available? Is there information about a faulting address (e.g., NULL)?
I don't think there's a whole lot to go on, here.
I guess you should say whether you have NODEBUG defined in the krb5 build environment.
-Ben
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