| 2015-07-31 17:35:42 |
oleg |
bug |
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added bug |
| 2015-07-31 17:35:42 |
oleg |
attachment added |
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script to reproduce the bug https://bugs.launchpad.net/bugs/1480411/+attachment/4437088/+files/overlayfs-bug.sh |
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| 2015-07-31 17:41:13 |
Andy Whitcroft |
linux (Ubuntu): status |
New |
Triaged |
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| 2015-07-31 17:41:17 |
Andy Whitcroft |
linux (Ubuntu): importance |
Undecided |
Medium |
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| 2015-07-31 17:41:21 |
Andy Whitcroft |
linux (Ubuntu): assignee |
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Andy Whitcroft (apw) |
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| 2015-07-31 17:41:24 |
Andy Whitcroft |
linux (Ubuntu): milestone |
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ubuntu-15.08 |
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| 2015-08-02 17:03:46 |
oleg |
description |
rm -r * fails to delete directories when using overlayfs in a user-namespace.
If overlayfs is mounted as follows,
mount -n -t overlay overlay -o lowerdir=lowerdir,upperdir=upperdir,workdir=workdir mntpt
and if lowerdir contains lowerdir/foo/bar.txt, then,
rm -r mntpt/foo
fails with error message,
"rm: cannot remove ‘mntpt/foo’: Operation not permitted"
strace shows,
unlinkat(AT_FDCWD, "mntpt/foo", AT_REMOVEDIR) = -1 EPERM (Operation not permitted)
OS details: 64-bit ubuntu 14.04.2 with the linux-generic-lts-vivid kernel.
The bug does not occur with the default 3.13 kernel. The bug occurs for any vanilla 3.18+ kernel to which the 1-line patch, "overlayfs: allow unprivileged mounts" is added. (The patch is at, http://kernel.ubuntu.com/git/ubuntu/ubuntu-vivid.git/commit/?id=78ec45495b15d27d4cc6d05cc454e30ec5b587ea)
The bug occurs regardless of whether the underlying filesystem is tmpfs or ext4.
A script which reproduces the bug is attached and is also available at http://paste.ubuntu.com/11974137/
Hardware: intel core2 duo processor in a macbook-4.1 |
rm -r * fails to delete directories when using overlayfs in a user-namespace.
If overlayfs is mounted as follows,
mount -n -t overlay overlay -o lowerdir=lowerdir,upperdir=upperdir,workdir=workdir mntpt
and if lowerdir contains lowerdir/foo/bar.txt, then,
rm -r mntpt/foo
fails with error message,
"rm: cannot remove ‘mntpt/foo’: Operation not permitted"
strace shows,
unlinkat(AT_FDCWD, "mntpt/foo", AT_REMOVEDIR) = -1 EPERM (Operation not permitted)
OS details: 64-bit ubuntu 14.04.2 with the linux-generic-lts-vivid kernel.
The bug does not occur with the default 3.13 kernel. The bug occurs for any vanilla 3.18+ kernel to which the 1-line patch, "overlayfs: allow unprivileged mounts" is added. (The patch is at, http://kernel.ubuntu.com/git/ubuntu/ubuntu-vivid.git/commit/?id=78ec45495b15d27d4cc6d05cc454e30ec5b587ea)
The bug occurs regardless of whether the underlying filesystem is tmpfs or ext4.
The bug also occurs when running ubuntu 15.04 (ubuntu vivid) in a virtual machine (qemu-kvm). The host is ubuntu 14.04 with the linux-generic-lts-vivid kernel.
A script which reproduces the bug is attached and is also available at http://paste.ubuntu.com/11974137/
Hardware: intel core2 duo processor in a macbook-4.1 |
|
| 2015-08-02 17:05:41 |
oleg |
tags |
overlayfs |
bot-stop-nagging overlayfs |
|
| 2015-08-03 06:36:29 |
oleg |
description |
rm -r * fails to delete directories when using overlayfs in a user-namespace.
If overlayfs is mounted as follows,
mount -n -t overlay overlay -o lowerdir=lowerdir,upperdir=upperdir,workdir=workdir mntpt
and if lowerdir contains lowerdir/foo/bar.txt, then,
rm -r mntpt/foo
fails with error message,
"rm: cannot remove ‘mntpt/foo’: Operation not permitted"
strace shows,
unlinkat(AT_FDCWD, "mntpt/foo", AT_REMOVEDIR) = -1 EPERM (Operation not permitted)
OS details: 64-bit ubuntu 14.04.2 with the linux-generic-lts-vivid kernel.
The bug does not occur with the default 3.13 kernel. The bug occurs for any vanilla 3.18+ kernel to which the 1-line patch, "overlayfs: allow unprivileged mounts" is added. (The patch is at, http://kernel.ubuntu.com/git/ubuntu/ubuntu-vivid.git/commit/?id=78ec45495b15d27d4cc6d05cc454e30ec5b587ea)
The bug occurs regardless of whether the underlying filesystem is tmpfs or ext4.
The bug also occurs when running ubuntu 15.04 (ubuntu vivid) in a virtual machine (qemu-kvm). The host is ubuntu 14.04 with the linux-generic-lts-vivid kernel.
A script which reproduces the bug is attached and is also available at http://paste.ubuntu.com/11974137/
Hardware: intel core2 duo processor in a macbook-4.1 |
rm -r * fails to delete directories when using overlayfs in a user-namespace.
If overlayfs is mounted as follows,
mount -n -t overlay overlay -o lowerdir=lowerdir,upperdir=upperdir,workdir=workdir mntpt
and if lowerdir contains lowerdir/foo/bar.txt, then,
rm -r mntpt/foo
fails with error message,
"rm: cannot remove ‘mntpt/foo’: Operation not permitted"
strace shows,
unlinkat(AT_FDCWD, "mntpt/foo", AT_REMOVEDIR) = -1 EPERM (Operation not permitted)
OS details: 64-bit ubuntu 14.04.2 with the linux-generic-lts-vivid kernel (3.19).
The bug does not occur on ubuntu 14.04.2 with the default linux-generic 3.13 kernel.
The bug occurs for any vanilla 3.18+ kernel to which the 1-line patch, "overlayfs: allow unprivileged mounts" is added. (The patch is at, http://kernel.ubuntu.com/git/ubuntu/ubuntu-vivid.git/commit/?id=78ec45495b15d27d4cc6d05cc454e30ec5b587ea)
The bug occurs regardless of whether the filesystem underlying overlayfs is tmpfs or ext4.
The bug also occurs when running ubuntu 15.04 (ubuntu vivid) in a virtual machine (qemu-system-x86_64). The host is ubuntu 14.04.2 with the default 3.13 kernel.
A script which reproduces the bug is attached and is also available at http://paste.ubuntu.com/11974137/
Hardware: intel core2 duo processor in a macbook-4.1 |
|
| 2015-08-18 11:41:09 |
oleg |
bug task added |
|
lxc (Ubuntu) |
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| 2015-08-18 15:12:40 |
Launchpad Janitor |
lxc (Ubuntu): status |
New |
Confirmed |
|
| 2015-08-18 15:41:20 |
Serge Hallyn |
lxc (Ubuntu): status |
Confirmed |
Invalid |
|
| 2015-08-18 15:41:25 |
Serge Hallyn |
linux (Ubuntu): status |
Triaged |
Invalid |
|
| 2015-08-18 18:40:17 |
Serge Hallyn |
lxc (Ubuntu): status |
Invalid |
New |
|
| 2015-08-18 18:40:21 |
Serge Hallyn |
linux (Ubuntu): status |
Invalid |
New |
|
| 2015-08-18 18:42:03 |
Serge Hallyn |
linux (Ubuntu): status |
New |
Confirmed |
|
| 2015-08-18 18:42:08 |
Serge Hallyn |
lxc (Ubuntu): status |
New |
Confirmed |
|
| 2015-08-18 18:42:10 |
Serge Hallyn |
lxc (Ubuntu): importance |
Undecided |
Medium |
|
| 2015-08-18 18:42:15 |
Serge Hallyn |
lxc (Ubuntu): importance |
Medium |
High |
|
| 2015-09-01 08:45:49 |
Andy Whitcroft |
linux (Ubuntu): milestone |
ubuntu-15.08 |
ubuntu-15.09 |
|
| 2015-10-04 11:58:49 |
Andy Whitcroft |
linux (Ubuntu): milestone |
ubuntu-15.09 |
ubuntu-15.10 |
|
| 2015-10-14 23:07:57 |
Nelson Lago |
bug |
|
|
added subscriber Nelson Lago |
| 2015-10-24 04:17:57 |
Adrian Guenter |
bug |
|
|
added subscriber Adrian Guenter |
| 2015-11-04 04:42:26 |
Andy Whitcroft |
linux (Ubuntu): milestone |
ubuntu-15.10 |
ubuntu-15.11 |
|
| 2015-11-09 18:32:06 |
Stéphane Graber |
bug task deleted |
lxc (Ubuntu) |
|
|
| 2015-11-10 12:36:20 |
oleg |
bug task added |
|
lxc (Ubuntu) |
|
| 2015-11-10 12:36:31 |
oleg |
lxc (Ubuntu): status |
New |
Confirmed |
|
| 2015-11-10 17:19:29 |
oleg |
bug task deleted |
lxc (Ubuntu) |
|
|
| 2015-12-07 20:30:08 |
Andy Whitcroft |
linux (Ubuntu): milestone |
ubuntu-15.11 |
ubuntu-15.12 |
|
| 2016-01-19 10:30:27 |
Andy Whitcroft |
linux (Ubuntu): milestone |
ubuntu-15.12 |
ubuntu-16.01 |
|
| 2016-02-01 12:34:22 |
Andy Whitcroft |
linux (Ubuntu): milestone |
ubuntu-16.01 |
ubuntu-16.02 |
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| 2016-02-24 03:50:40 |
oleg |
marked as duplicate |
|
1531747 |
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