Bug 866682

Summary:	Incorrect reports of failed login attempts
Product:	[Fedora] Fedora	Reporter:	David Woodhouse <dwmw2>
Component:	util-linux	Assignee:	Karel Zak <kzak>
Status:	CLOSED NEXTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	18	CC:	jonathan, kdudka, kzak, maxamillion, mluscon, ovasik, p, tmraz, twaugh
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Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-02-01 16:12:53 UTC	Type:	Bug
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Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description David Woodhouse 2012-10-15 21:05:48 UTC

Not entirely sure if this is PAM's fault, but...

[dwmw2@shinybook ~]$ su
Password: 
Last failed login: Fri Oct 12 20:50:36 PDT 2012 from 217.108.226.49 on ssh:notty
There were 17 failed login attempts since the last successful login.
[root@shinybook dwmw2]# exit
[dwmw2@shinybook ~]$ su
Password: 
Last failed login: Fri Oct 12 20:50:36 PDT 2012 from 217.108.226.49 on ssh:notty
There were 17 failed login attempts since the last successful login.
[root@shinybook dwmw2]# 


There certainly haven't been 17 failed login attempts between my first successful login, and my second. It even admits that — the last unsuccessful attempt was 3 days ago.

Comment 1 Tomas Mraz 2012-10-15 21:40:45 UTC

su has to update the btmp file for the display to be correct.

It probably should not update it if root attempts su-ing to a regular user account though.

Comment 2 Ondrej Vasik 2012-10-16 06:46:11 UTC

Utility su is going to move to util-linux in F19 (was removed from coreutils by upstream and Karel kindly added su and runuser to their new home in util-linux).

Comment 3 Karel Zak 2012-10-16 09:30:12 UTC

(In reply to comment #1)
> su has to update the btmp file for the display to be correct.

Good point, added to upstream util-linux TODO file.

Comment 4 Karel Zak 2013-02-01 16:12:53 UTC

Implemented in upstream tree, ...will be in util-linux 2.23 (f19)