Now at Jammy with kernel 5.15.0-25-generic, I have still observed
freezes. Quite infrequent, so not "quick" to reproduce (whereas at
Impish were frequent, within minutes of uptime).
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I wonder whether my problem is this bug 1962036, or something else.
Problem while upgrading impish to jammy: screen showing just
background (no windows), moving/clicking mouse eliciting the
"wait" cursor momentarily.
Fixed by hard reset, boot to "recovery" console, and used:
dpkg --configure -a
I wonder whether my problem is this bug 1965652, or is 1962036,
or something else.
Problem while upgrading impish to jammy: screen showing just
background (no windows), moving/clicking mouse eliciting the
"wait" cursor momentarily.
Fixed by hard reset, boot to "recovery" console, and used:
dpkg
Surely same non-fix as Impish
** Changed in: linux (Ubuntu Jammy)
Status: Fix Released => Confirmed
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Title:
rtw88_8821ce causes freeze
Tested
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.12-rc1/
and it causes freeze. Details:
Installing (dpkg -i) the files
linux-image-unsigned-5.12.0-051200rc1-generic_5.12.0-051200rc1.202103032009_amd64.deb
linux-
modules-5.12.0-051200rc1-generic_5.12.0-051200rc1.202103032009_amd64.deb
Do you know whether the fix that went into 5.15.0-22.22
(or into 5.15.0-17.17) is any different from what went
into impish 5.13.0-28.31? That impish fix did NOT work,
did NOT solve the issue.
Oh well... jammy will be released soon, and I will test.
I wonder whether this bug will remain "alive"
My laptop is running Ubuntu 21.10 "impish", still.
Can I test this fix somehow, without fully upgrading to "jammy"?
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Title:
rtw88_8821ce causes
I do not actually know about Focal... but is NOT fixed in Impish,
and this is the only thing assigned to a person.
** Changed in: linux (Ubuntu Impish)
Status: Fix Released => Confirmed
** Changed in: linux-oem-5.13 (Ubuntu Focal)
Status: Fix Released => Confirmed
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Sorry Mr Launchpad Janitor, you are mistaken.
This bug is NOT FIXED in impish 5.13.0-28.31 ...
my laptop proves you wrong!
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Title:
rtw88_8821ce
Released "fix" did not solve issue
** Changed in: linux-oem-5.13 (Ubuntu Focal)
Status: Fix Released => Confirmed
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Title:
rtw88_8821ce
Released "fix" did not solve issue
** Changed in: linux (Ubuntu Impish)
Status: Fix Released => Confirmed
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Title:
rtw88_8821ce causes
Released "fix" did not solve issue
** Changed in: linux (Ubuntu Jammy)
Status: Fix Released => Confirmed
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Title:
rtw88_8821ce causes
May I (should I) change status "Fix released" to "Confirmed"?
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Title:
rtw88_8821ce causes freeze
To manage notifications about this bug go to:
Sorry spoke too soon! Just after my message, my laptop froze.
The issue is not fixed on my machine (as per Comment#59).
Since I am the "original poster" or reporter of this bug,
maybe it should NOT be marked as fixed.
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Thanks! 5.13.0-28-generic seems to work fine for me
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Title:
rtw88_8821ce causes freeze
To manage notifications about this bug go to:
As per original/initial bug report: yes I used the
https://github.com/tomaspinho/rtl8821ce
driver, and it seemed to work perfectly.
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Title:
... so I also show /var/log/syslog .
** Attachment added: "syslog.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1927808/+attachment/5552236/+files/syslog.txt
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I do not see anything interesting in journalctl (does not go back long
enough)...
** Attachment added: "journalctl-b-1-k.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1927808/+attachment/5552235/+files/journalctl-b-1-k.txt
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Sorry but verification failed. Doing
sudo apt-get install linux-image-generic/impish-proposed
and rebooting (so "uname -r" shows 5.13.0-24-generic),
my Ollee (ProTempo) L116HTN6SPW froze almost instantly.
Adding the /etc/modprobe.d/rtw88_pci.conf workaround of
options rtw88_pci disable_aspm=1
Output of sudo lspci -vvnn below.
In hindsight, I should have tested your
people.canonical.com/~khfeng/8821ce-rx-aspm/
kernel... did not do because it is 5.15 that I thought was
too different, and mainly because of my laziness. Sorry!
Seems you do not actually have access to a "problem"
Should have mentioned... that lspci is with the "plain impish"
5.13.0-23-generic kernel.
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Title:
rtw88_8821ce causes freeze
To manage
(Had sent this via email, but that seems delayed.)
Sorry but verification failed. Doing
sudo apt-get install linux-image-generic/impish-proposed
and rebooting (so "uname -r" shows 5.13.0-24-generic),
my Ollee (ProTempo) L116HTN6SPW froze almost instantly.
Adding the
** Tags removed: verification-needed-impish
** Tags added: verification-failed-impish
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Title:
rtw88_8821ce causes freeze
To manage
Sorry I cannot easily test Focal, I had since upgraded to Impish.
(Is there some linux-image package for Impish to test?)
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Title:
rtw88_8821ce
Now at Ubuntu 21.10 (impish) and kernel 5.13.0-19, my Ollee (ProTempo)
L116HTN6SPW is "happy".
I wonder about other models with the same wireless device...
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Seems the issue affects devices from multiple manufacturers,
and various models. Maybe some "commonality" can be found
between them, to trigger disabling ASPM they cannot handle,
better than trying to enumerate them in kernel sources as
suggested in commit 956c6d4f20c5446727e0c912dd8f527f2dc7b779,
You have not posted your /etc/modprobe.d/rtw88_pci.conf file:
was the method was not successful?
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Title:
rtw88_8821ce causes freeze
To manage
Can you post the contents of your /etc/modprobe.d/rtw88_pci.conf file?
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Title:
rtw88_8821ce causes freeze
To manage notifications about this
Your message to "upstream" seems fine.
No I did not "do" anything to elicit those "timed out to flush queue 2"
messages with the RC4 kernel. With the 5.13.0-5 kernel as built by
Kai-Heng, I did not seem to get them anymore.
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Thanks, the kernel from
https://people.canonical.com/~khfeng/lp1927808/
seems to work fine. Attaching dmesg output.
** Attachment added: "dmesg-5.13.0-5.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1927808/+attachment/5502531/+files/dmesg-5.13.0-5.txt
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Running "uname -a" shows:
Linux ollee 5.13.0-051300rc4-generic #202105302331 SMP Sun May 30 23:33:24 UTC
2021 x86_64 x86_64 x86_64 GNU/Linux
as installed from
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.13-rc4/amd64/
Maybe you could send me the compiled files that I would need to put in
Sorry I do not think I can (in a practical sense) test the patch:
I do not think I have ever built my own Ubuntu kernel.
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Title:
rtw88_8821ce
The info you wanted (though was in the original bug report):
psz@ollee:~$ sudo dmidecode | grep -E "(Manufacturer|Product)"
Manufacturer: Protempo Ltd
Product Name: L116HTN6SPW
...
I still worry about that (0.1sec?) timeout "to flush queue 2":
why would that happen,
** Attachment added: "dmesg-5.13rc4-rtw88-aspm.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1927808/+attachment/5502051/+files/dmesg-5.13rc4-rtw88-aspm.txt
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Setting /etc/modprobe.d/rtw88_pci.conf to contain
options rtw88_pci disable_aspm=1
seems to have worked: no freeze. To confirm the setting:
psz@ollee:~$ grep . /sys/module/rtw88_pci/parameters/*
/sys/module/rtw88_pci/parameters/disable_aspm:Y
Do you mean to use disable_aspm=0 as kernel parameter, instead of
previous "pcie_aspm=force pcie_aspm.policy=performance"? OK, will try.
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** Attachment added: "dmesg-5.13rc4-pcie_aspm.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1927808/+attachment/5501630/+files/dmesg-5.13rc4-pcie_aspm.txt
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Thanks, 5.13-rc4 with those pcie_aspm options looks promising,
no freeze in about an hour. Output of dmesg attached. I wonder
about the "timed out to flush queue 2" lines.
(Hmm... cannot attach file? Will try later.)
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Just wondering (maybe I am way off ...).
In kernel code I often see segments like
lock(thing)
do stuff
unlock(thing)
but in drivers/net/wireless/realtek/rtw88/main.c there is:
void rtw_core_stop(struct rtw_dev *rtwdev)
{
...
mutex_unlock(>mutex);
...
I have now tried the RC4 kernel from
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.13-rc4/amd64/
and sorry, but the freeze is still there.
Only now I notice that, curiously, the freeze may (is more likely to?)
occur while the network is essentially idle.
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Hmm... would love to test v5.13-rc3, but no *.deb files there,
file "log" suggests the build filled up the disk.
I will check again in a day or two... or please let me know when fixed.
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I tried 5.13, installing packages
linux-headers-5.13.0-051300rc1-generic_5.13.0-051300rc1.202105092230_amd64.deb
linux-headers-5.13.0-051300rc1_5.13.0-051300rc1.202105092230_all.deb
linux-image-unsigned-5.13.0-051300rc1-generic_5.13.0-051300rc1.202105092230_amd64.deb
Output of dmesg (with kernel built-in driver)
** Attachment added: "dmesg.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1927808/+attachment/5495958/+files/dmesg.txt
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I should have added: I had tried the 5.12 kernel from
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.12/amd64/
and that was same (or worse, seemed to freeze quicker).
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** Description changed:
My laptop (Ollee L116HTN6SPW) has a Realtek 8821CE WiFi card.
- Now at hirsute, this is "supported" in the linux-image-5.11.0-16-generic
kernel,
- and it works "well" for both WiFi and Bluetooth. However, this module (driver)
- causes frequent freezes, randomly but
Public bug reported:
My laptop (Ollee L116HTN6SPW) has a Realtek 8821CE WiFi card.
Now at hirsute, this is "supported" in the linux-image-5.11.0-16-generic kernel,
and it works "well" for both WiFi and Bluetooth. However, this module (driver)
causes frequent freezes, randomly but usually within a
After updating from 20.04 LTS "focal fossa" to to 20.10 "groovy gorilla",
this issue seems solved (does not occur anymore).
** Changed in: alsa-ucm-conf (Ubuntu)
Status: New => Fix Released
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Script with slightly better wording
** Attachment added: "asus-sound"
https://bugs.launchpad.net/ubuntu/+source/alsa-ucm-conf/+bug/1871544/+attachment/5350043/+files/asus-sound
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** Summary changed:
- No sound on Asus X206HA cx2072x
+ No sound on Asus X206HA cx2072x [SOLVED? with workaround]
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Title:
No sound on Asus
any
such scripts or subterfuge.
Thanks, Paul
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
** Affects: alsa-ucm-conf (Ubuntu)
Importance: Undecided
Status: New
** Attachment added
*** This bug is a duplicate of bug 1798090 ***
https://bugs.launchpad.net/bugs/1798090
The suggestion to install package xul-ext-lightning fixed the
problem for me. Thanks!
However, I do not think is a duplicate, because I do not have
Google calendars, but I had Exchange meeting invites.
Public bug reported:
Since the update to version 1:60.2.1+build1-0ubuntu0.18.04.2
a few days ago, my Thunderbird does not show calendar messages,
e.g. shows nothing, just a blank page, for meeting invites.
** Affects: thunderbird (Ubuntu)
Importance: Undecided
Status: New
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The way I read man ntpd (on Debian wheezy), we could (should?) replace
ntpdate by
ntpd -q; and if we are going to run ntpd then ntpdate is unnecessary anyway.
If we have (or are going to have) ntpd, then we should simply skip
/etc/network/if-up.d/ntpdate;
seeing how that depends on NTPSERVERS
See also
https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/288905
where I said:
The way I read man ntpd (on Debian wheezy), we could (should?) replace
ntpdate by
ntpd -q; and if we are going to run ntpd then ntpdate is unnecessary anyway.
If we have (or are going to have) ntpd, then we
The way I read man ntpd (on Debian wheezy), we could (should?) replace
ntpdate by
ntpd -q; and if we are going to run ntpd then ntpdate is unnecessary anyway.
If we have (or are going to have) ntpd, then we should simply skip
/etc/network/if-up.d/ntpdate;
seeing how that depends on NTPSERVERS
See also
https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/288905
where I said:
The way I read man ntpd (on Debian wheezy), we could (should?) replace
ntpdate by
ntpd -q; and if we are going to run ntpd then ntpdate is unnecessary anyway.
If we have (or are going to have) ntpd, then we
Created attachment 8523379
Workaround
While we await a patch for this issue... there is a workaround described in
http://git.auf.org/?p=auf-poste-client.git;a=tree;f=lucid/auf-thunderbird-hack
that works without needing to re-build Thunderbird (but using just LD_PRELOAD
in a wrapper script);
on the value of /proc/sys/fs/file-max .
Cheers, Paul
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
---
Machine: Dell Optiplex 760, 4GB RAM
Results:
Version Name kernel
4.10Warty
Should a CVE be assigned, seeing how this issue causes a DoS?
And then a USN/DSA should be issued when eventually solved.
Should it be reported to SecurityFocus and obtain a BID?
Could the Status be changed to something better than Expired?
Would some kind soul confirm and explicitly state that
of correctness, until some understanding of this bug:
the kernel code is common between 32- and 64-bit.
---
Long and boring details below.
Cheers, Paul
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
Expired? That is weird... how come it did not expire between comments#18
and comments#19, between 16Jan and 6Aug?
Anyway the bug is alive... as anyone could easily test, with a simple
bash -c 'n=0; while [ $n -lt 33000 ]; do sleep 600 ((n=n+1));
((m=n%500)); if [ $m -lt 1 ]; then echo -n $n -
Dear Christopher,
About testing the latest kernel (with a development Ubuntu, which may be
unrelated to the kernel bug): would not it be better for you to test?
The feedback to you would be more immediate, allowing you to test kernel
tuneables, or maybe tweak/fix/patch the kernel sources.
Dear Christopher,
... test the latest upstream kernel ...
Did not I do that already in
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1098961/comments/18
? Is there really a need to re-test? (Yes I know that the kernel now is
different
from what I tested... but unless you know that
Tested latest upstream kernel: the mainline kernel does NOT fix the bug.
Tag 'kernel-bug-exists-upstream' added, bug marked as 'Confirmed'.
More verbose blurb below.
Cheers, Paul
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics
1755304
-/+ buffers/cache: 1615602926060
Swap: 2920 0 2920
and re-trying the sleep test, it ran into OOM after 18000 or so sleeps
and crashed/froze so I had to press the POWER button to recover.
Cheers, Paul
Paul Szabo p...@maths.usyd.edu.au http
apport information
** Attachment added: AlsaDevices.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481368/+files/AlsaDevices.txt
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and crashed/froze so I had to press the POWER button to recover.
Cheers, Paul
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
+ ---
+ AlsaVersion: Advanced Linux Sound Architecture
apport information
** Attachment added: ArecordDevices.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481369/+files/ArecordDevices.txt
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apport information
** Attachment added: BootDmesg.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481370/+files/BootDmesg.txt
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apport information
** Attachment added: Card0.Amixer.values.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481371/+files/Card0.Amixer.values.txt
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apport information
** Attachment added: Card0.Codecs.codec.2.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481372/+files/Card0.Codecs.codec.2.txt
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apport information
** Attachment added: Lspci.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481373/+files/Lspci.txt
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Title:
PAE
apport information
** Attachment added: Lsusb.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481374/+files/Lsusb.txt
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Title:
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apport information
** Attachment added: PciMultimedia.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481375/+files/PciMultimedia.txt
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apport information
** Attachment added: ProcCpuinfo.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481376/+files/ProcCpuinfo.txt
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apport information
** Attachment added: ProcInterrupts.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481377/+files/ProcInterrupts.txt
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apport information
** Attachment added: ProcModules.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481378/+files/ProcModules.txt
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apport information
** Attachment added: PulseList.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481379/+files/PulseList.txt
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apport information
** Attachment added: UdevDb.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481380/+files/UdevDb.txt
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Title:
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apport information
** Attachment added: UdevLog.txt
https://bugs.launchpad.net/bugs/1098961/+attachment/3481381/+files/UdevLog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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802.11n router and with 11n_disable=1 workaround
---
Cheers, Paul
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
** Attachment added: Logs with the old 802.11g(?) router
https
** Attachment added: Logs with new 802.11n router, cannot connect
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/974838/+attachment/3430323/+files/syslog-bad
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** Attachment added: Logs with new 802.11n router and with 11n_disable=1
workaround
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/974838/+attachment/3430324/+files/syslog-good
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** Bug watch added: Debian Bug tracker #621423
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621423
** Also affects: x11-xserver-utils (Debian) via
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621423
Importance: Unknown
Status: Unknown
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-November/077247.html
http://bugs.debian.org/602333
Cheers,
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
** Affects: fuse (Ubuntu)
Importance: Undecided
Status: New
** Visibility
, Paul
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
** Affects: ghostscript (Ubuntu)
Importance: Undecided
Status: New
** Visibility changed to: Public
--
Security: does not honour
not
happen on Ubuntu. (The setting works fine on Debian, and there is no
retrieval because Debian sensibly barred that.)
Cheers, Paul
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
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Window title
;\a\e\[21t'
does not set the title; but with Allow Window Ops ticked, it echoes
the bad command into the input buffer.
Cheers, Paul
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
--
Window title
I now got my test program reading /proc/self/mem to work, and it seems
that neither getspnam() nor getspent() leave garbage in memory: no
security risk.
Cheers,
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of Sydney
chunks of /etc/shadow (other than the line for right user) could
be found in process memory, before or after endspent(). Have so far
failed to read /proc/self/mem in my test program, and wonder if that
feature works in my kernel...
Cheers,
Paul Szabo p...@maths.usyd.edu.au http
Both login and newgrp leak a file descriptor to /etc/shadow, please see
the see the Debian bug report
http://bugs.debian.org/505071
for details.
Cheers,
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of Sydney
the user to grab the open file descriptor to /etc/shadow.
Cheers,
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
** Affects: shadow (Ubuntu)
Importance: Undecided
Status: New
Hmm... maybe in fact there is no problem? Testing Debian, it seems
that getspnam() does not leave an open file descriptor, but setspent()
would. (I do not know what /bin/login does exactly.)
Cheers,
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics
Even now, at shadow version 4.1.3, there are DoS issues with securetty,
and bypass/trick of pam_time, pam_group checks. Please see
http://bugs.debian.org/505071
for details.
Cheers,
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics
/505271
for details.
Cheers,
Paul Szabo p...@maths.usyd.edu.au http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics University of SydneyAustralia
--
/bin/login gives root to group utmp
https://bugs.launchpad.net/bugs/306082
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Window title, DECRQSS security
https://bugs.launchpad.net/bugs/311983
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