Bug 657471 - Immutable bit only affects new attempts to modify file
Summary: Immutable bit only affects new attempts to modify file
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 13
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2010-11-26 08:25 UTC by Penelope Fudd
Modified: 2011-06-28 10:23 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2011-06-28 10:23:41 UTC
Type: ---

Attachments (Terms of Use)

Description Penelope Fudd 2010-11-26 08:25:37 UTC
Description of problem:
I like using 'chattr +i filename' to protect a file from being modified by anything.  Imagine my surprise when I found that the file was still growing after I had typed that command.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. ping -n > filename &
2. chattr +i filename
3. ls -l filename; sleep 2; ls -l filename
4. lsattr filename
Actual results:
The file keeps growing, even though the immutable bit is on.

Expected results:
The file should become frozen, any program currently writing to it should get an error, probably EACCES, EPERM, EDQUOT, EIO, EROFS, or ENOSPC, depending on what's most commonly checked for by programs that actually do error checking on writes.

Additional info:
I suppose the current behaviour may be desired, simply because that's the way permissions have always worked: typing 'chmod a-w filename' had no effect on programs that were already writing to the file, for example.

Comment 1 Bug Zapper 2011-05-30 13:26:47 UTC
This message is a reminder that Fedora 13 is nearing its end of life.
Approximately 30 (thirty) days from now Fedora will stop maintaining
and issuing updates for Fedora 13.  It is Fedora's policy to close all
bug reports from releases that are no longer maintained.  At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '13'.

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Comment 2 Bug Zapper 2011-06-28 10:23:41 UTC
Fedora 13 changed to end-of-life (EOL) status on 2011-06-25. Fedora 13 is 
no longer maintained, which means that it will not receive any further 
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of 
Fedora please feel free to reopen this bug against that version.

Thank you for reporting this bug and we are sorry it could not be fixed.

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