Bug 545053 - passwd fails with obscure message when line in /etc/shadow missing
passwd fails with obscure message when line in /etc/shadow missing
Product: Fedora
Classification: Fedora
Component: pam (Show other bugs)
All Linux
low Severity medium
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Assigned To: Tomas Mraz
Fedora Extras Quality Assurance
Depends On:
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Reported: 2009-12-07 08:08 EST by Ed Avis
Modified: 2010-11-04 04:06 EDT (History)
1 user (show)

See Also:
Fixed In Version: pam-1.1.3-1.fc15
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2010-11-04 04:06:26 EDT
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Description Ed Avis 2009-12-07 08:08:18 EST
If a user's entry is missing in /etc/shadow (although present in /etc/passwd) then trying to set the password for that user fails:

# passwd somebody
Changing password for user somebody.
New password:
Retype new password:
passwd: Authentication token manipulation error

If you manually add a line to /etc/shadow then passwd succeeds.  This bug report is for two suggestions:

- Firstly, if the line is missing in /etc/shadow then the error message should say that - the existing message is not very informative.

- But better would be that passwd(1) knows to add a new line to /etc/shadow if setting the password for a user for the first time.

Of course adduser(1) adds the line but making passwd(1) more robust would avoid some headscratching in case the various files get out of sync.
Comment 1 Tomas Mraz 2009-12-07 11:06:50 EST
This must be fixed in pam_unix.
Comment 2 Bug Zapper 2010-11-04 00:02:32 EDT
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