broad indemnification clauses (TAES disclaimer)

Hello,
netpbm's analyzer/pgmtexture.c features:
8X-------------------------------
** Code written partially taken from pgmtofs.c in the PBMPLUS package
** by Jef Poskanzer.
**
** Algorithms for calculating features (and some explanatory comments) are
** taken from:
**
**   Haralick, R.M., K. Shanmugam, and I. Dinstein. 1973. Textural features
**   for image classification.  IEEE Transactions on Systems, Man, and
**   Cybertinetics, SMC-3(6):610-621.
**
** Copyright (C) 1991 Texas Agricultural Experiment Station, employer for
** hire of James Darrell McCauley
**
** Permission to use, copy, modify, and distribute this software and its
** documentation for any purpose and without fee is hereby granted, provided
** that the above copyright notice appear in all copies and that both that
** copyright notice and this permission notice appear in supporting
** documentation.  This software is provided "as is" without express or
** implied warranty.
**
** THE TEXAS AGRICULTURAL EXPERIMENT STATION (TAES) AND THE TEXAS A&M
** UNIVERSITY SYSTEM (TAMUS) MAKE NO EXPRESS OR IMPLIED WARRANTIES
** (INCLUDING BY WAY OF EXAMPLE, MERCHANTABILITY) WITH RESPECT TO ANY
** ITEM, AND SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL
** OR CONSEQUENTAL DAMAGES ARISING OUT OF THE POSSESSION OR USE OF
** ANY SUCH ITEM. LICENSEE AND/OR USER AGREES TO INDEMNIFY AND HOLD
** TAES AND TAMUS HARMLESS FROM ANY CLAIMS ARISING OUT OF THE USE OR
** POSSESSION OF SUCH ITEMS.
8X-------------------------------

The fishy bit is the broad indemnification clause »LICENSEE AND/OR
USER AGREES TO INDEMNIFY AND HOLD TAES AND TAMUS HARMLESS FROM ANY
CLAIMS ARISING OUT OF THE USE OR POSSESSION OF SUCH ITEMS.«

RedHat/Fedora looked at it
https://gitlab.com/fedora/legal/fedora-license-data/-/work_items/255
and dropped the respective file.

What is our stanza? I have asked upstream and Bryan wrote:
| Actually, that isn't part of any license.  The copyright license is the
| paragraph above that.  This paragraph starts off as a disclaimer of warranty,
| and ends with a covenant, both of which presume to be part of some contract
| between the licensee and the author, which doesn't exist.

cu Andreas