Bug 628 - passwd bug
passwd bug
Status: CLOSED WORKSFORME
Product: Red Hat Linux
Classification: Retired
Component: passwd (Show other bugs)
5.0
i386 Linux
high Severity high
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Assigned To: David Lawrence
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Depends On:
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Reported: 1998-12-27 20:25 EST by mr
Modified: 2008-05-01 11:37 EDT (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 1998-12-29 15:54:02 EST
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Description mr 1998-12-27 20:25:53 EST
Hello, all!

Here's something to get your "panties in a bunch"--with a
root filesystem at 100+% used, with NO spare bytes to write
a one-block file (nevermind what your block size is):

0. login as root
1. change root password
2. see /etc/passwd become zero-bytes

Need I say more?  Can't /usr/bin/passwd do some sanity
checks on the bytes free on the root partition BEFORE it
goes changing passwords?

Just an idea.

--Michael Regoli
WinSite Group, Inc.
mr@winsite.com
www.winsite.com
Comment 1 David Lawrence 1998-12-29 15:54:59 EST
I was unable to replicate this bug in the test lab. The passwd command
generates the error:

passwd: Critical error - immediate abort

but it does not zero out the passwd file. After space is freed it
works fine again.

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