Created attachment 1337398 [details]
DNF Session output and listing of packages

Description of problem:
When using dnf install `cat file` with a large number of package names (about 450 items give or take), the program coredumps with an invalid pointer


Version-Release number of selected component (if applicable):
System is fully patched/updated to the current release as of 10/11/2017 @ 1200 PDT
dnf - 2.7.3
kernel - Linux pnf 4.13.5-200.fc26.x86_64 #1 SMP Thu Oct 5 16:53:13 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
python3 - 3.6.2


How reproducible:
VERY

Steps to Reproduce:
1. get a list of a number of files to install and put into file (something like python3\* -- see attachment).  Note this fails on other long package selections not only python3
2. dnf install `cat filename`
3. NOTE: Keeping selection size under about 400 packages seems to keep dnf happy.

Actual results:


Expected results:
Should provide errors or conflicts (if any) or proceed to user verification of package selection.


Additional info:
See attachment for a test file used and the session output from dnf.