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> Revision: 20543
> U   trunk/src/lib/krb5/rcache/rc_io.c

It looks to me like, if strdup fails, the file is left open (which is probably okay if the caller then uses krb5_rc_close to dispose 
of the handle, but may cause a file and file descriptor leak if the caller tries krb5_rc_io_creat again), and d->fn is a dangling 
pointer (which could be freed again by krb5_rc_io_close).