Using libdvdnav 4.2.0-1ubuntu0.1 and vlc 2.0.8-0ubuntu0.12.04.1, I still
get this crash with DVD Shadow Recruit (at
dvdnav_describe_title_chapters(), stack trace says it is under package
vlc-nox 2.0.8-0ubuntu0.12.04.1). Also happened with Madagascar and
several others, although the package may
This bug was fixed in the package libdvdnav - 4.2.0-1ubuntu0.1
---
libdvdnav (4.2.0-1ubuntu0.1) precise-proposed; urgency=low
* debian/patches/03-check-cellnr.patch: Check for new row being 0. Fixes
issue where VLC (and Totem) crashes in dvdnav_describe_title_chapters().
Colin, mind opening a new bug for that dvd issue? That looks like a
crash due to a bad pgc-cell_playback_offset value, which is different
from this bug. This one is already closed and considered fixed, so no
further work is going to be done on it.
I seem to recall having a similar issue with
From dpkg.log on Precise: 2013-11-12 19:24:35 status installed libdvdnav4
4.2.0-1ubuntu0.1. Ran the command
vlc -d OZ_THE_GREAT_AND_POWERFUL.iso and got the following:
$ VLC media player 2.0.8 Twoflower (revision 2.0.8a-0-g68cf50b)
[0xa001908] main libvlc: Running vlc with the default interface.
This bug was fixed in the package libdvdnav - 4.2.0+20130225-1ubuntu0.1
---
libdvdnav (4.2.0+20130225-1ubuntu0.1) raring-proposed; urgency=low
* debian/patches/0003-pgcn-bounds.patch: Check for out-of-bounds values for
pgcn. Fixes a crash in dvdnav_describe_title_chapters()
This bug was fixed in the package libdvdnav - 4.2.0+20120524-2ubuntu0.1
---
libdvdnav (4.2.0+20120524-2ubuntu0.1) quantal-proposed; urgency=low
* debian/patches/03-Make-sure-pgc-is-valid.patch,
debian/patches/04-Ignore-parts-where-the-pgc-start-byte-is-wrong.patch,
I have verified that Inside Man is correctly played on raring whit the
libdvdnav update and I have verified that the test case runs without
crashing on precise and quantal.
** Tags removed: verification-needed
** Tags added: verification-done
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Hello Edward, or anyone else affected,
Accepted libdvdnav into raring-proposed. The package will build now and
be available at
http://launchpad.net/ubuntu/+source/libdvdnav/4.2.0+20130225-1ubuntu0.1
in a few hours, and then in the -proposed repository.
Please help us by testing this new package.
** Description changed:
- This looks like bug 934471 happening again. The patch that fixed that
- bug does appear to be present in the raring source. So I don't know
- what's happening. :(
+ [Impact]
+ vlc, lsdvd, and other video players crash in dvdnav_describe_title_chapters()
when playing
** Branch linked: lp:~ubuntu-branches/ubuntu/quantal/libdvdnav/quantal-
proposed
** Branch linked: lp:ubuntu/raring-proposed/libdvdnav
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Title:
** Branch linked: lp:ubuntu/precise-proposed/libdvdnav
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Title:
vlc crashed with SIGSEGV in dvdnav_describe_title_chapters()
To manage
** Description changed:
This looks like bug 934471 happening again. The patch that fixed that
bug does appear to be present in the raring source. So I don't know
what's happening. :(
At least one dvd that I have, but not all dvds, cause this crash in both
vlc and totem. Just like
** Changed in: libdvdnav (Ubuntu Precise)
Status: Confirmed = Fix Committed
** Changed in: libdvdnav (Ubuntu Quantal)
Status: Confirmed = Fix Committed
** Changed in: libdvdnav (Ubuntu Raring)
Status: Confirmed = Fix Committed
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Thank you, all, for figuring out much more than I did.
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Title:
vlc crashed with SIGSEGV in dvdnav_describe_title_chapters()
To manage
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: libdvdnav (Ubuntu Precise)
Status: New = Confirmed
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: libdvdnav (Ubuntu Quantal)
Status: New = Confirmed
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: libdvdnav (Ubuntu Raring)
Status: New = Confirmed
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Excellent. Looks like you're getting pgcn in the same range as me:
i: 1
ifo: 0x7f3a00049640
ifo-vts_pgcit: 0x7f3ac670
ifo-vts_pgcit-pgci_srp: 0x7f3a00049840
*(ifo-vts_pgcit-pgci_srp): 129
ifo-vts_pgcit-last_byte: 1431
ptt[1].pgcn: 32570
PGCN out of bounds
That last message indicates the
This is the cleaned up patch without all the debug chatter.
** Patch added: The cleaned up patch without all the debug chatter.
https://bugs.launchpad.net/ubuntu/+source/libdvdnav/+bug/1094499/+attachment/3667429/+files/100_pgcn_bounds.patch
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** Also affects: libdvdnav (Ubuntu Precise)
Importance: Undecided
Status: New
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Title:
vlc crashed with SIGSEGV in
I've sent the patch upstream for review and uploaded it to saucy.
Can you list any other DVDs which you find are fixed with this patch?
My Inside Man dvd didn't have this issue and I haven't run into it
with other DVDs.
I reproduced the issue on precise, so am adding a task to SRU the fix
there.
** Branch linked: lp:~ubuntu-branches/ubuntu/saucy/libdvdnav/saucy-
proposed
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Title:
vlc crashed with SIGSEGV in
** Tags added: patch
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Title:
vlc crashed with SIGSEGV in dvdnav_describe_title_chapters()
To manage notifications about this bug go to:
This bug was fixed in the package libdvdnav - 4.2.0+20130225-1ubuntu1
---
libdvdnav (4.2.0+20130225-1ubuntu1) saucy; urgency=low
* Add 100_pgcn_bounds.patch: Check for out-of-bounds values for pgcn.
Fixes a crash in dvdnav_describe_title_chapters() with vlc, lsdvd, and
Inside Man (the German version) is the only DVD that triggers this bug
for me.
The SRU process requires us to publish the fix in quantal and raring,
too. When doing the SRU, we (I) should include more fixes for precise
and quantal: The three commits from 2012-08-30 [1]. That's what the VLC
Sounds good. I'll let you drive the SRU's. I agree those three fixes
would be worth inclusion.
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Title:
vlc crashed with SIGSEGV in
I tried to play the full DVD with the patched libdvdnav from your PPA.
It plays without problems (no crash any more). Attached the terminal
output from VLC.
PS: I don't need binary packages. I happily take patches and build the
package on my own.
** Attachment added: log
In playing with the IFO bdrung provided I found that the crash was
caused by an out of bounds array access. The value was up in the
32,000's. I haven't sorted out why it's so high for this IFO, but am
guessing it's either undefined data or bad pointer math. Potentially
the bug is in libdvdread
** Changed in: libdvdnav (Ubuntu)
Status: Confirmed = Triaged
** Changed in: libdvdnav (Ubuntu)
Assignee: (unassigned) = Bryce Harrington (bryce)
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Thanks. This works to reproduce the crash.
#0 0x7fffe8b1a98a in dvdnav_describe_title_chapters (this=0x7fffd0001380,
title=optimized out,
times=0x7fffe903d098, duration=0x7fffe903d090) at searching.c:644
cellnr = optimized out
endcellnr = optimized out
retval =
The pointers vary from run to run. The .pgcN value stays constant:
lp1094499: set_FP_PGC(vm=0x7f9584001d30)
lp1094499: .pgc=0x7f9584006a90
lp1094499: .pgcN=1024)
lp1094499: set_PGCN(vm=0x7f9584001d30, pgcN=6)
lp1094499: pgcit=0x7f9584001f70
lp1094499: .pgc=0x7f9584007680
lp1094499: .pgcN=6
Here is the forgotten tarball.
** Attachment added: ifo-files.tar.xz
https://bugs.launchpad.net/ubuntu/+source/libdvdnav/+bug/1094499/+attachment/3642743/+files/ifo-files.tar.xz
** Description changed:
This looks like bug 934471 happening again. The patch that fixed that
bug does
(apport hook issue looks to be fixed @ http://bugs.debian.org/cgi-
bin/bugreport.cgi?bug=702942, included in 2.0.5-2)
** Bug watch added: Debian Bug tracker #702942
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702942
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@bdrung,
Well, the stacktrace for this bug is only hinting at the problem, but I
don't think other logs would explain what happened. It seems a pointer
is getting set to an invalid value somewhere else in the program prior
to the crash, but not clear how, when, or why.
So I think the next step
Upstream is affected, too. The patch from [1] does not fix my bug. The
.IFO and . BUP files of the causing video DVD are the same.
Please let me know how to collect all needed data to fix this bug or
when I should test a patch.
[1] http://lists.mplayerhq.hu/pipermail/dvdnav-
(Oh, and looks like the apport hook has a bug in it too; that should be
fixed as well...)
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Title:
vlc crashed with SIGSEGV in
This isn't the same as bug 934471, although the stacktraces are
deceptively similar. However, it seems to be crashing on a different
line, and for a different reason.
#0 0x7fb974591b16 in dvdnav_describe_title_chapters (this=0x7fb944001360,
title=title@entry=1,
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: libdvdnav (Ubuntu)
Status: New = Confirmed
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Title:
Rémi, thanks. I tried to file this under libdvdnav, but I guess it
didn't work. Hm.
** Changed in: libdvdnav (Ubuntu)
Status: Incomplete = New
** Description changed:
This looks like bug 934471 happening again. The patch that fixed that
bug does appear to be present in the raring
** Package changed: vlc (Ubuntu) = libdvdnav (Ubuntu)
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Title:
vlc crashed with SIGSEGV in dvdnav_describe_title_chapters()
To manage
** Description changed:
This looks like bug 934471 happening again. The patch that fixed that
bug does appear to be present in the raring source. So I don't know
what's happening. :(
At least one dvd that I have, but not all dvds, cause this crash in both
vlc and totem. Just like
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