Red Hat Bugzilla – Bug 511209
Adding a new user with a non-standard home directory produces incorrect policies
Last modified: 2010-06-28 09:37:08 EDT
Description of problem: When installing fedora 11 on a system that had run fedora 9 I kept the home directories (which were in two partitions, mounted on /home and /home2) from the fedora 9 system. I then used groupadd -g $n $user useradd -M -d /home{,2}/$user -g $user -u $n1 $user to create each user that had existed on the fedora 9 system, with the same uid, gid and homedir as before. I did it this way in the hope that (among other things) it would make the correct alterations to selinux policies. There was only one user "aph" with a /home2 directory. Somewhere along the line, /etc/selinux/targeted/contexts/files/file_contexts.homedirs acquired lines like this one: /home2/aph/[^/]*/\.ssh(/.*)? unconfined_u:object_r:home_ssh_t:s0 which is clearly wrong! It should either be /home2/aph/\.ssh(/.*)? unconfined_u:object_r:home_ssh_t:s0 or /home2/[^/]*/\.ssh(/.*)? unconfined_u:object_r:home_ssh_t:s0 I'm not sure what part of the process of installation/user addition makes these changes, so I've had no luck reproducing them, although my attempts haven't produced correct behaviour either. Current attempts to add users with home directories in /home2 (or even a new /home3) don't add any lines to the homedirs contexts file, so home directories get created with entirely the wrong selinux context. Version-Release number of selected component (if applicable): Currently selinux-policy-targeted-3.6.12-62.fc11.noarch though that might have been updated since I added the users. Since I don't know what's supposed to be responsible for altering the policy, I'm not sure that that's the right component. How reproducible: Hard to say (see above) Steps to Reproduce: 1. 2. 3. Actual results: See above Expected results: See above Additional info: I can obviously (and will) edit /etc/selinux/targeted/contexts/files/file_contexts.homedirs to work around the problem, but you'll have to tell me what to do to test the thing properly.
What does the entry in /etc/passwd look like?
Unexciting: aph:x:1024:1024::/home2/aph/:/bin/bash
That final / is probably screwing up the tools. If you change /home2/aph/ to /home2/aph Run genhomedircon See if the context is correct.
That looks like it was the problem, thanks. Given that command completion puts the slash on (and apart from a few rather nasty command-line syntaxes foo/ is equivalent to foo), I reckon the tools ought to be adjusted to cope. I think selinux is worth the effort, but I suspect that quite a lot of people give up and turn it off after hitting one or two snags like this.
I agree this is a bug in the tool. Taking a quick look at the library it looks like it should have handled it, but I will take a closer look.
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Fedora 11 changed to end-of-life (EOL) status on 2010-06-25. Fedora 11 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.