segfaults in pam_smbpass in SAMBA_3_0 with unixsam backend
Steve Langasek
vorlon at netexpress.net
Thu Oct 24 23:54:00 GMT 2002
Currently, pam_smbpass calls initialize_password_db() with reload == True
on every pass through the module. This is supposedly the Right Thing
for the code to do, but recently the "reload" option took on actual
meaning, and now pam_smbpass segfaults on the second pass when using
the unixsam backend. :)
The problem is in pdb_interfaces.c:
static void free_pdb_context(struct pdb_context **context)
{
struct pdb_methods *pdb_selected = (*context)->pdb_methods;
while (pdb_selected){
pdb_selected->free_private_data(&(pdb_selected->private_data));
pdb_selected = pdb_selected->next;
}
talloc_destroy((*context)->mem_ctx);
*context = NULL;
}
The nisplus and unixsam backends do not initialize the free_private_data
method. Do these need to be implemented yet, or should they be stubbed
off and have error checking added to free_pdb_context() to check for a
null pointer?
Steve Langasek
postmodern programmer
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