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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - /dev/fuse wrong permission, chmod in udev rule not applied"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83399">83399</a>
</td>
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<th>Assignee</th>
<td>systemd-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>/dev/fuse wrong permission, chmod in udev rule not applied
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>systemd-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
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<th>Reporter</th>
<td>szunti@gmail.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>general
</td>
</tr>
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<th>Product</th>
<td>systemd
</td>
</tr></table>
<p>
<div>
<pre>I have two computers with Arch Linux and same systemd version (216) and
/dev/fuse has different permissions on them after boot.
One is my old laptop, /dev/fuse is 666 here. So I can use sshfs etc. with every
user.
The other is a newer desktop, and /dev/fuse got 600 permission.
systemctl --version gives:
systemd 216
+PAM -AUDIT -SELINUX -IMA -APPARMOR +SMACK -SYSVINIT +LIBCRYPTSETUP +GCRYPT
+GNUTLS +ACL +XZ -LZ4 +SECCOMP +BLKID -ELFUTILS +KMOD -IDN
My investigation:
I see that here is an udev rule in systemd with chmod=0666 in
'50-udev-default.rules', and indeed running on the new computer:
udevadm trigger -c add -y 'fuse'
fixes the permission to 666.
The /dev/fuse file is created by 'systemd-tmpfiles-setup-dev.service' with
600 permission ('kmod-static-nodes.service' generates the tmpfiles.d config in
'/run/tmpfiles.d/kmod.conf')
I guess it's something with the 'systemd-udev-trigger.service' and the
'systemd-tmpfiles-setup-dev.service' starting simultaneously.</pre>
</div>
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