SRU justification for Lucid:
Impact:
The ECRYPTFS_NEW_FILE crypt_stat flag is set upon creation of a new
eCryptfs file. When the flag is set, eCryptfs reads directly from the
lower filesystem when bringing a page up to date. This means that no
offset translation (for the eCryptfs file metadata
** Also affects: ecryptfs-utils (Ubuntu Lucid)
Importance: Undecided
Status: New
** Also affects: libreoffice (Ubuntu Lucid)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Lucid)
Importance: Undecided
Status: New
** Also affects: openoffice.org
** Changed in: openoffice.org (Ubuntu Lucid)
Status: New = Won't Fix
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Title:
encrypted swap corrupts application
** Changed in: openoffice.org (Ubuntu Lucid)
Status: Won't Fix = Invalid
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Title:
encrypted swap corrupts application
** No longer affects: libreoffice (Ubuntu)
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Title:
encrypted swap corrupts application stack/heap [was: soffice.bin
SIGSEGV
Launchpad has imported 15 comments from the remote bug at
https://bugs.freedesktop.org/show_bug.cgi?id=37850.
If you reply to an imported comment from within Launchpad, your comment
will be sent to the remote bug automatically. Read more about
Launchpad's inter-bugtracker facilities at
** Branch linked: lp:ubuntu/lucid-updates/linux-lts-backport-natty
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Title:
encrypted swap corrupts application stack/heap
This bug was fixed in the package linux - 2.6.38-13.52
---
linux (2.6.38-13.52) natty-proposed; urgency=low
[Herton R. Krzesinski]
* Release Tracking Bug
- LP: #887379
[ Konrad Rzeszutek Wilk ]
* SAUCE: x86/paravirt: Partially revert remove lazy mode in interrupts
I'm clearing the Natty verification tag as I was able to reproduce the
corruption and verify that this patch fixes the symptoms caused by the
reproducer.
** Tags removed: verification-needed-natty
** Tags added: verification-done-natty
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This bug is awaiting verification that the kernel for Natty in -proposed
solves the problem (2.6.38-13.52). 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
nice if it's fixed :)
think i got this again when trying import from my sdcard into Shotwell
yesterday.
drop me a line at 48045666@ if you still want some output from my
laptop
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Tyler - this patch fixes the corruption caused by the reproducer in #86
using a 2.6.38 kernel. However, I'm not able to reproduce this using a
2.6.35 kernel. Do you have any advice as to whether this patch is really
applicable on kernels older then 2.6.38 ?
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Wow, Tyler.
Good job. Can't wait for the fix release.
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Title:
encrypted swap corrupts application stack/heap [was:
Thank you Tyler! So this topic is now going to be solved finally?
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Title:
encrypted swap corrupts application stack/heap
This turned out to be a tricky one. It is definitely an eCryptfs bug.
The upstream fix that I thought would solve this issue ended up not
being the right fix. Instead, it turned out to be the following two
commits:
bd4f0fe8bb7c73c738e1e11bc90d6e2cf9c6e20e
fed8859b3ab94274c986cbdf7d27130e0545f02c
** Patch added: [PATCH] eCryptfs: Clear ECRYPTFS_NEW_FILE flag during truncate
https://bugs.launchpad.net/ubuntu/+source/libreoffice/+bug/745836/+attachment/2524979/+files/0001-eCryptfs-Clear-ECRYPTFS_NEW_FILE-flag-during-truncat.patch
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On 2011-09-30 00:23:31, Rolf Leggewie wrote:
This is a very visible and highly annoying bug that affects a core
package in three releases including the latest LTS. We need to identify
the patch that fixed this and backport it.
I agree.
I've got a feeling that the fix for this is upstream
** Description changed:
Binary package hint: libreoffice
1) lsb_release -rd
Description: Ubuntu 11.04
Release: 11.04
2) apt-cache policy libreoffice-calc
libreoffice-calc:
Installed: 1:3.3.3-1ubuntu2
Candidate: 1:3.3.3-1ubuntu2
Version table:
***
** Tags added: rls-mgr-o-tracking
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Title:
encrypted swap corrupts application stack/heap [was: soffice.bin
SIGSEGV
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu Maverick)
Status: New = Confirmed
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I encourage all people from the duplicates to visit
https://bugs.launchpad.net/ubuntu/natty/+source/linux/+bug/745836/+affectsmetoo
and indicate that they are affected as well. This should hopefully
increase priority with the devs, too.
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OK, according to the feedback here this does seem to be fixed in
oneiric, great! But let's not get back to business just quite, yet.
This is a very visible and highly annoying bug that affects a core
package in three releases including the latest LTS. We need to identify
the patch that fixed
Scott, can you please nominate for natty, maverick and lucid against the
kernel? Seems like I'm not allowed to.
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Title:
This was originally report on natty. It's still there. It went away
when I upgraded to oneiric.
** Also affects: ecryptfs-utils (Ubuntu Natty)
Importance: Undecided
Status: New
** Also affects: libreoffice (Ubuntu Natty)
Importance: Undecided
Status: New
** Also affects:
Thanks, please don't forget lucid.
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Title:
encrypted swap corrupts application stack/heap [was: soffice.bin
SIGSEGV
I implemented the workaround in #71 and things were better at first
(thanks Luca!). But today, after a suspend/resume, Writer went Boom as
soon as I touched it. (I was using a feature - Track Changes - for the
first time, which may have something to do with it). So as far as I'm
concerned this is
I've just upgraded my laptop to oneiric and this, on first inspection, seem to
be much better if not fixed.
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Title:
hello all, here is my solution.
i have been struggling for several months with the same problem, my system is a
common ubuntu 11.04 with a default encrypted home and thus an encrypted swap:
luca@idle:~$ uname -a
Linux idle 2.6.38-11-generic #50-Ubuntu SMP Mon Sep 12 21:18:14 UTC 2011 i686
i686
sorry, sergei, not andrei
also sorry, the first command contains a missing char, the correct is:
luca@idle:~$ sudo mkdir /home/unencrypted
cheers
luca
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...
now, following the suggestion of andrei but in a simpler way i tried to
move outside the encrypted area just the personal configuration settings
folder of libreoffice ...
I just did this and at least on a brief trial is seems to have cured a large
number of issues I was having with LO.
Ian,
Can you give the output of:
$ cat /proc/swaps
$ free
$ ls -alF /dev/mapper/cryptswap*
$ grep swap /etc/fstab
$ grep swap /etc/crypttab
Thanks.
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** Summary changed:
- ecryptfs encrypted swap corrupts application stack/heap [was: soffice.bin
SIGSEGV cppu::throwException()]
+ encrypted swap corrupts application stack/heap [was: soffice.bin SIGSEGV
cppu::throwException()]
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** Also affects: ecryptfs-utils (Ubuntu Oneiric)
Importance: Critical
Status: Confirmed
** Also affects: libreoffice (Ubuntu Oneiric)
Importance: High
Status: Invalid
** Also affects: linux (Ubuntu Oneiric)
Importance: Undecided
Status: Incomplete
** Also affects:
** Changed in: ecryptfs-utils (Ubuntu Oneiric)
Assignee: (unassigned) = Tyler Hicks (tyhicks)
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Title:
encrypted swap
I can reproduce the general protection fault mentioned in comment #44
pretty easily.
I ftraced the eCryptfs code while triggering the crash and don't see
much going on other than a lookup(), the eCryptfs inode initialization
functions being called, and the a call to ecryptfs_readpage(). This
Cant reproduce so far on oneiric beta2 with encrypted swap and home.
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Title:
encrypted swap corrupts application stack/heap
** Bug watch added: freedesktop.org Bugzilla #37850
http://bugs.freedesktop.org/show_bug.cgi?id=37850
** Changed in: df-libreoffice
Importance: Undecided = Unknown
** Changed in: df-libreoffice
Status: Invalid = Unknown
** Changed in: df-libreoffice
Remote watch: None =
** Changed in: df-libreoffice
Status: Unknown = Won't Fix
** Changed in: df-libreoffice
Importance: Unknown = Critical
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