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Bug
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Resolution: Not a Bug
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Normal
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None
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rhel-9.6, rhel-10.0
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None
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No
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Low
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TestCaseProvided
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rhel-fs
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3
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False
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False
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None
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None
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None
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Automated
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Unspecified
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Unspecified
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Unspecified
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None
What were you trying to do that didn't work?
The behaviors are different when trying to mount an exported path which is a symlink under dir with fsid=root:
- Success if the linked path are relative
- Failed if the linked path are full
# Exporting /export_test as root
[root@rhel-10-upk ~]# exportfs -v
/export_test <world>(sync,wdelay,hide,no_subtree_check,fsid=0,sec=sys,rw,secure,root_squash,no_all_squash)
^^^^^^^
[root@rhel-10-upk ~]# ll /export_test/
total 0
drwxr-xr-x. 2 root root 17 Jun 5 06:03 sub
lrwxrwxrwx. 1 root root 5 Jun 5 06:03 symlink1 -> ./sub
lrwxrwxrwx. 1 root root 16 Jun 5 06:03 symlink2 -> /export_test/sub <<<<<<
[root@rhel-10-upk ~]#
[root@rhel-10-upk ~]# mount localhost:/symlink1 /mnt
[root@rhel-10-upk ~]# umount /mnt
[root@rhel-10-upk ~]# mount localhost:/symlink2 /mnt
mount.nfs: access denied by server while mounting localhost:/symlink2 <<<<<<
[root@rhel-10-upk ~]#
What is the impact of this issue to you?
Please provide the package NVR for which the bug is seen:
How reproducible is this bug?:
Always
Steps to reproduce
[root@rhel-10-upk ~]# cat test.sh mkdir -p /export_test/sub /mnt_test pushd /export_test ln -s ./sub ./symlink1 popd ln -s /export_test/sub /export_test/symlink2 ls -l /export_test/ echo '/export_test *(rw,fsid=0)' > /etc/exports systemctl restart nfs-server echo "mount localhost:/symlink1 /mnt_test" mount localhost:/symlink1 /mnt_test [ $? -eq 0 ] && grep mnt_test /proc/mounts && umount /mnt_test echo "mount localhost:/symlink2 /mnt_test" mount localhost:/symlink2 /mnt_test [ $? -eq 0 ] && grep mnt_test /proc/mounts && umount /mnt_test
Expected results
Success to mount
