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Description of problem:
When run on certain processes (e.g. dbus) and with the -S option (show system calls), ltrace crashes and kills traced process.

Version-Release number of selected component (if applicable):
ltrace-0.7.91-14.el7.x86_64

How reproducible:
always

Steps to Reproduce:
1. Get PID of dbus, auditd or rsyslogd (just examples)
   # ps -ef | grep -E ^dbus

2. Run ltrace with the -S option
   # ltrace -p <PID> -S

Actual results:
# ps -ef | grep -E ^dbus
dbus     28044     1  0 06:50 ?        00:00:00 /bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
# ltrace -S -p 28044
getegid32@SYS(ltrace: fetch.c:287: allocate_integer: Assertion `!"Too many return value classes."' failed.
Aborted
# ps -ef | grep -E ^dbus
#

Fixed in ltrace-0.7.91-16.el7

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1089