Bug 1957592

Summary:	check_disk -l --skip-fake-fs on RHEL8.3 core dumps.
Product:	[Fedora] Fedora EPEL	Reporter:	Christian <christ64>
Component:	nagios-plugins	Assignee:	Guido Aulisi <guido.aulisi>
Status:	NEW ---	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	low	Docs Contact:
Priority:	unspecified
Version:	epel8	CC:	b.heden, guido.aulisi, herrold, lemenkov, smooge, swilkerson
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
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Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	Bug
Regression:	---	Mount Type:	---
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Christian 2021-05-06 06:00:41 UTC

Description of problem:
When running:
   /usr/lib64/nagios/plugins/check_disk -l --skip-fake-fs
the command core dumps on a SIGSEV.

Version-Release number of selected component (if applicable):
Only tried 2.3.3-5.el8 from EPEL8

How reproducible:
Always

Steps to Reproduce:
1.  /usr/lib64/nagios/plugins/check_disk -l                  # Works
2.  /usr/lib64/nagios/plugins/check_disk -l --skip-fake-fs   # Crashes
3.

Actual results:
Segmentation fault (core dumped)

Expected results:
Listing of all normal filesystems and their level of usage.

Additional info:
1. From dmesg:
[Wed May  5 16:52:10 2021] check_disk[59372]: segfault at 55c659af5e58 ip 000055c659aea927 sp 00007ffdced25510 error 7 in check_disk[55c659ae7000+14000]
[Wed May  5 16:52:10 2021] Code: 74 21 48 8d 35 e5 b9 00 00 4c 89 f7 e8 02 fa ff ff 48 85 c0 0f 84 69 03 00 00 66 0f 1f 84 00 00 00 00 00 49 8b 47 28 4c 89 ff <48> 89 45 28 e8 d0 8d 00 00 4d 8

2. On RHEL7.9 with versions 2.3.3-2.el7, the command works as expected.