I was attempting to track this down for RHEL5 (see here[1]). When I
apply the patch generated by this commit[2], I can no longer reproduce
the winbind segfault.
This is against RHEL5's 3.3.8 and, I would assume, would be appropriate
for Ubuntu's 3.3.x version as well.
[1]
Just to clarify, you've tried the 3.3.x patches in Samba bug 6793[1] and
they do not resolve the issue? Also am trying to track this problem
down.
[1] https://bugzilla.samba.org/show_bug.cgi?id=6793
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winbind crashes on authentication (winbind_pam_auth)
https://bugs.launchpad.net/bugs/503402
