** Changed in: linux
Status: Confirmed = Fix Released
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Title:
NFSv4 mount point does not allow binary files to run when permissions
are
This release has reached end-of-life [0].
[0] https://wiki.ubuntu.com/Releases
** Changed in: linux (Ubuntu Maverick)
Status: New = Invalid
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** Changed in: linux
Status: Unknown = Confirmed
** Changed in: linux
Importance: Unknown = Medium
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Title:
NFSv4 mount point does not
This bug was fixed in the package linux - 2.6.32-38.83
---
linux (2.6.32-38.83) lucid-proposed; urgency=low
[Herton R. Krzesinski]
* Release Tracking Bug
- LP: #911405
[ Upstream Kernel Changes ]
* Revert clockevents: Set noop handler in clockevents_exchange_device()
This bug was fixed in the package linux - 2.6.38-13.54
---
linux (2.6.38-13.54) natty-proposed; urgency=low
[Herton R. Krzesinski]
* Release Tracking Bug
- LP: #911195
[ Alex Bligh ]
* (config) Change Xen paravirt drivers to be built-in
- LP: #886521
[ Paolo
using a VM with natty -proposed running a server. and a VM with lucid
-proposed running the client. The client can mount the directory and
execute a binary with 111 permissions.
** Changed in: linux (Ubuntu Natty)
Assignee: (unassigned) = Chris J Arges (christopherarges)
** Tags removed:
@Chris and @herton!!
Thank you for your work!!!
Leonardo
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Title:
NFSv4 mount point does not allow binary files to run when permissions
are
** Branch linked: lp:ubuntu/lucid-proposed/linux-lts-backport-natty
** Branch linked: lp:ubuntu/lucid-proposed/linux-ec2
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Title:
NFSv4 mount
** Branch linked: lp:ubuntu/maverick-proposed/linux-mvl-dove
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Title:
NFSv4 mount point does not allow binary files to run when permissions
are
This bug is also awaiting verification that the kernel for Lucid in
-proposed solves the problem (2.6.32-38.83). If the problem is solved,
change the tag 'verification-needed-lucid' to 'verification-done-lucid'.
** Tags added: verification-needed-lucid
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** Tags removed: verification-needed-lucid
** Tags added: verification-done-lucid
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Title:
NFSv4 mount point does not allow binary files to run
@herton
Cannot verify natty. It does not work with the latest nfs-common, and with the
older nfs-common as identified in the bug.
** Changed in: linux (Ubuntu Lucid)
Assignee: (unassigned) = Chris J Arges (christopherarges)
** Tags removed: verification-needed-natty
** Tags added:
This bug is awaiting verification that the kernel for Natty in -proposed
solves the problem (2.6.38-13.54). Please test the kernel and update
this bug with the results. If the problem is solved, change the tag
'verification-needed-natty' to 'verification-done-natty'.
If verification is not done
** Also affects: linux (Ubuntu Lucid)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Natty)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Oneiric)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Precise)
rtg@lochsa:~/ubuntu/ubuntu-oneiric$ git describe --contains
0b9653a06ba3e845386dc9f86d2d3fdebf7bb9db
Ubuntu-3.0.0-14.23~170
** Changed in: linux (Ubuntu Oneiric)
Status: New = Fix Released
** Changed in: linux (Ubuntu Precise)
Status: Fix Committed = Fix Released
** Also affects:
Attached is the backport of a043226bc140a2c1dde162246d68a67e5043e6b2 for
natty.
** Patch added:
0001-nfsd4-permit-read-opens-of-executable-only-files-natty.patch
Attached is the backport of a043226bc140a2c1dde162246d68a67e5043e6b2 for
lucid.
** Patch added:
0001-nfsd4-permit-read-opens-of-executable-only-files-lucid.patch
SRU request sent to kernel mailing list.
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Title:
NFSv4 mount point does not allow binary files to run when permissions
are set only to execute
** Changed in: linux (Ubuntu)
Status: In Progress = Fix Committed
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Title:
NFSv4 mount point does not allow binary files to run when
Using the above test setup, and trying various clients I see a mismatch:
Using a newer nfs client (nfs-common 1:1.2.2-4), I can read a file with 111
permissions, but cannot execute it.
With an older nfs client (nfs-common 1:1.2.0-4), I can read and execute a file
with 111 permissions.
--
You
Contacted upstream nfsv4 maintainer about this. This may be an nfs-
common / nfsv4 client issue.
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Title:
NFSv4 mount point does not allow binary
** Changed in: linux (Ubuntu)
Status: Triaged = In Progress
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Title:
NFSv4 mount point does not allow binary files to run when permissions
@lborda,
I've responded that this does not solve the issue:
http://comments.gmane.org/gmane.linux.nfs/43028
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Title:
NFSv4 mount point does not
Hi Chris,
Thanks for taking a look at this issue. So it looks like the upstream
fix does not solve the issue. Could you please report this to upstream?
Leonardo
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Hi Chris,
Thanks for taking a look at this issue. So it looks like the upstream patch
does not solve the issue.
Could please write your findings on the thread below:
http://comments.gmane.org/gmane.linux.nfs/43028
Leonardo
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I can reproduce this failure on natty/oneiric just fine.
I then applied the upstream patch
(a043226bc140a2c1dde162246d68a67e5043e6b2), that was identified in the
public bug and upstream bug.
After doing this I installed the tools on my laptop:
apt-get install nfs-common nfs-kernel-server
Then
** Changed in: linux (Ubuntu)
Assignee: Canonical Kernel Team (canonical-kernel-team) = Chris J Arges
(christopherarges)
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Title:
NFSv4
This is a note to let you know that developers have just added the patch
titled
nfsd4: permit read opens of executable-only files
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
Hi Guys,
I got an answer from upstream and they actually filled another bug since
it seems to be related to the client itself.
https://bugzilla.linux-nfs.org/show_bug.cgi?id=204
They will provide a patch so I can test it.
Leonardo
** Bug watch added: bugzilla.linux-nfs.org/ #204
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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Title:
NFSv4 mount point does not allow binary files to run when permissions
** Tags added: patch
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Title:
NFSv4 mount point does not allow binary files to run when permissions
are set only to execute
To manage
Hello Torsten,
Same problem here.
The patch solves the binary file but now it also allows scripts to run
which is a security issue. I am reopening this bug with upstream. See the info
below.
ubuntu@ubuntu:~$ sudo umount /mnt/
ubuntu@ubuntu:~$ sudo mount -t nfs4 -o proto=tcp,port=2049 ubuntu:/
I reproduced this problem per your setup on Ubuntu 10.04 LTS server and
client. There nfs4 would not work (e.g. permission denied), but nfs3
works. However, on Oneiric as server neither nor works:
spindler@spitfire:~$ sudo mount -t nfs -o vers=3 meteor:/home/spindler/export
/mnt-meteor
I've patched a Lucid kernel with the patch from your upstream bugreport:
https://bugzilla.linux-nfs.org/show_bug.cgi?id=201
and attached it here. While the execution of a binary works now, the execution
of shell scripts and even the inspection of the script does work as well:
Same problem with modified Oneiric kernel as server:
spindler@spitfire:/mnt-meteor$ ls -al
total 24
drwxrwxr-x 2 spindler spindler 4096 2011-09-14 10:16 .
drwxr-xr-x 23 root root 4096 2011-09-14 08:49 ..
---x--x--x 1 spindler spindler 7139 2011-09-14 10:16 hello
-rw-rw-r-- 1 spindler
There seems to be an upstream patch available in http://marc.info/?l
=linux-nfsm=131428919915674w=2
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Title:
NFSv4 mount point does not allow
** Changed in: linux (Ubuntu)
Status: Incomplete = Triaged
** Changed in: linux (Ubuntu)
Assignee: (unassigned) = Canonical Kernel Team (canonical-kernel-team)
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apport information
** Tags added: apport-collected natty
** Description changed:
Affected releases:
- Lucid, Natty when running NFSv4
One cannot run binary files when permissions are set to ---x--x--x on
systems running NFSv4.
Expected behaviour:
- Allow binaries to run by
I've opened an upstream bug as well.
https://bugzilla.linux-nfs.org/show_bug.cgi?id=201
Leonardo
** Package changed: nfs-utils (Ubuntu) = linux (Ubuntu)
** Bug watch added: bugzilla.linux-nfs.org/ #201
http://bugzilla.linux-nfs.org/show_bug.cgi?id=201
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** Also affects: linux via
http://bugzilla.linux-nfs.org/show_bug.cgi?id=201
Importance: Unknown
Status: Unknown
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Title:
NFSv4 mount
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