Bug 1732960

Summary: cmp -b shows incorrect data
Product: Red Hat Enterprise Linux 8 Reporter: Pablo Greco <pablo>
Component: diffutilsAssignee: Than Ngo <than>
Status: CLOSED ERRATA QA Contact: Jakub Haruda <jharuda>
Severity: low Docs Contact:
Priority: unspecified    
Version: 8.0CC: ajb, djez, jharuda, toracat
Target Milestone: rc   
Target Release: 8.0   
Hardware: All   
OS: Unspecified   
Whiteboard:
Fixed In Version: diffutils-3.6-6.el8 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2020-04-28 16:55:19 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1746915    

Description Pablo Greco 2019-07-24 20:36:05 UTC
Description of problem:
cmp -b (print bytes) shows incorrect output

Version-Release number of selected component (if applicable):
diffutils-3.6-5.el8

How reproducible:
Always


Steps to Reproduce:
1.echo 'This is some text to play with' >/var/tmp/a
2.echo 'This is some test to play with' >/var/tmp/b
3.cmp -b /var/tmp/a /var/tmp/b

Actual results:
/var/tmp/a /var/tmp/b differ: byte 16, line 1 is  12 ^J 163 s


Expected results:
/var/tmp/a /var/tmp/b differ: byte 16, line 1 is 170 x 163 s


Additional info:

Local rebuild applying this patch from upstream fixes the problem
http://git.savannah.gnu.org/cgit/diffutils.git/commit/?id=ffd63aedad3c0eb08ebb27103e5f242f8732dc0c

Comment 1 Than Ngo 2019-07-25 07:59:07 UTC
I can reproduce the issue with the attached testcase. Pablo, thank for your report.

Comment 5 Than Ngo 2019-11-19 14:17:43 UTC
it's fixed in diffutils-3.6-6.el8

Comment 9 errata-xmlrpc 2020-04-28 16:55:19 UTC
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-2020:1853