Bug#519640:

[Vikas Vikas]

Bug#519640: Bug still exists

[Trent Gamblin]

This bug still exists for me. apt-get upgrade just pulled in a 
ghostscript update today but it still crashes. If you need any info let 
me know.

Bug#519640: Is it fixed in the meantime?

[K. Hinner]

On Tue, 01 Dec 2015 17:03:01 +0100 Natanael Arndt  wrote:
> Is #519640 fixed in the meantime?
> I also had some segmentation fault with pdf2ps and particular files in
> ghostscript 9.06~dfsg-2+deb8u1 (stable/jessie) but it is gone in
> 9.16~dfsg-2 (taken from testing/stretch).
>
> Is it possible, that the bug creator checks if the bug is still
> reproducible?
>
> All the best
> Natanael
>
>

Same here, we have a .pdf file which cannot be converted (segmentation 
fault) in 9.06 ("jessie"), but it works with 9.16 ("stretch").


It seems that 32-Bit i386 "jessie" 9.06 works though, but not amd64.

With "strace" it is found that gs wants to access "Halftone/Default" in 
the "fonts" subdirectory and soft-linking some font helps a little bit, 
but then after some more steps there is another "segmentation fault".


All the best

Kajetan, Dr Hinner EDV

Bug#519640: Is it fixed in the meantime?

[Natanael Arndt]

Is #519640 fixed in the meantime?
I also had some segmentation fault with pdf2ps and particular files in 
ghostscript 9.06~dfsg-2+deb8u1 (stable/jessie) but it is gone in 
9.16~dfsg-2 (taken from testing/stretch).


Is it possible, that the bug creator checks if the bug is still 
reproducible?


All the best
Natanael

Bug#519640: ghostscript: ps2pdf segmentation fault with a particular file

[Jonathan Nieder]

tags 519640 + confirmed upstream
quit

Ryo Furue wrote:

 ps2pdf crashes:

Here's how it can be reproduced in place with upstream ghostscript.
Simplifications welcome.

Recipe:

... install ghostscript build-deps, ttf-sazanami-mincho, etc ...
$ git clone git://git.ghostscript.com/ghostscript.git
$ cd ghostscript/gs
$ ./autogen.sh -C \
--with-fontpath=/var/lib/ghostscript/fonts:\
/usr/share/cups/fonts:/usr/share/ghostscript/fonts:\
/usr/local/lib/ghostscript/fonts:/usr/share/fonts \
--disable-compile-inits --prefix=/usr
$ (cd /usr/share/ghostscript  ln -sT /tmp/ghostscript/gs 9.01)
$ rm Resource/Init/cidfmap
$ make -j2
$ sed -i -e 's,exec $GS_EXECUTABLE,exec gdb --args bin/gs,' 
lib/ps2pdfwr
$ lib/ps2pdfwr ghostscript-ps2pdf-crash.ps

Result:

Starting program: bin/gs -P- -dSAFER -q -P- -dNOPAUSE -dBATCH 
-sDEVICE=pdfwrite -sstdout=%stderr -sOutputFile=ghostscript-ps2pdf-crash.pdf 
-P- -dSAFER -c .setpdfwrite -f /tmp/ghostscript-ps2pdf-crash.ps
[Thread debugging using libthread_db enabled]

Program received signal SIGSEGV, Segmentation fault.
pdf_set_charproc_attrs (pdev=0x89ca124, font=0x9d9b608, pw=0xbfffe140, 
narg=2, control=TEXT_SET_CHAR_WIDTH, ch=161)
at ./base/gdevpdti.c:578
578 pcp-owner_fonts = NULL;
(gdb)

pcp (= pdev-accumulating_substream_resource) is null, hence the segfault.

Further reading:

git log --follow -G pdf_set_charproc_attrs base/gdevpdti.c
git log -G accumulating_substream_resource
[one can instead use git log -p and grep by hand if using
 pre-1.7.4 git]

Well, that's a start.  Thanks again.



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Bug#519640: ghostscript: ps2pdf segmentation fault with a particular file

[Jonathan Nieder]

tags 519640 + moreinfo
quit

Hi,

Sorry for the long silence.

Ryo Furue wrote:

   $ type ps2pdf
   ps2pdf is /usr/bin/ps2pdf
   $ ps2pdf ghostscript-ps2pdf-crash.ps
   Segmentation fault
   $

 Unfortunately, I can't post this file to a public server
 because it contains some personal information.

That's fine.  If you'd like, I can try to help make a reduced
testcase with no identifying information that you could post
in its place.  Alternatively, here is one way to debug:

 $ apt-get build-dep ghostscript
 $ git clone git://git.ghostscript.com/ghostscript.git
 $ cd gs
 $ ./autogen.sh --help=short
 $ ./configure --enable-debug
 $ make -j2
 $ gdb --args bin/gs -dSAFER ghostscript-ps2pdf-crash.ps

Even a backtrace could be enough to track the bug down.

Thanks for reporting,
Jonathan



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Bug#519640: ghostscript: ps2pdf segmentation fault with a particular file

[Jonathan Nieder]

tags 519640 - moreinfo
found 519640 ghostscript/9.00~dfsg-2
quit

Ryo Furue wrote:

 OK, it's fine.
 You can attach it to the bug log.

Thanks, attached.


ghostscript-ps2pdf-crash.ps.xz
Description: Binary data

Bug#519640: ghostscript: ps2pdf segmentation fault with a particular file

[Ryo Furue]

Package: ghostscript
Version: 8.63.dfsg.1-2
Severity: important

ps2pdf crashes:

  $ type ps2pdf
  ps2pdf is /usr/bin/ps2pdf
  $ ps2pdf ghostscript-ps2pdf-crash.ps
  Segmentation fault
  $

Unfortunately, I can't post this file to a public server
because it contains some personal information.  I'll
provide it if a maintainer or developer of ghostscript
directly contacts me.  (But, I can't guarantee
how long I'll keep it on my disk.)  Thanks.

Regards,
Ryo

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-1-686-bigmem (SMP w/4 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash

Versions of packages ghostscript depends on:
ii  debconf [debc 1.5.25 Debian configuration management sy
ii  debianutils   2.31   Miscellaneous utilities specific t
ii  defoma0.11.10-0.2Debian Font Manager -- automatic f
ii  ghostscript [ 8.63.dfsg.1-2  The GPL Ghostscript PostScript/PDF
ii  gs-common 8.63.dfsg.1-2  Dummy package depending on ghostsc
ii  gsfonts   1:8.11+urwcyr1.0.7~pre44-4 Fonts for the Ghostscript interpre
ii  libc6 2.9-4  GNU C Library: Shared libraries
ii  libcomerr21.41.3-1   common error description library
ii  libcups2  1.3.8-1lenny4.1Common UNIX Printing System(tm) - 
ii  libcupsimage2 1.3.8-1lenny4.1Common UNIX Printing System(tm) - 
ii  libgnutls26   2.6.4-2the GNU TLS library - runtime libr
ii  libgs88.63.dfsg.1-2  The Ghostscript PostScript/PDF int
ii  libjpeg62 6b-14  The Independent JPEG Group's JPEG 
ii  libkrb53  1.6.dfsg.4~beta1-9 Transitional library package/krb4 
ii  libpng12-01.2.27-2   PNG library - runtime
ii  libtiff4  3.8.2-11   Tag Image File Format (TIFF) libra
ii  zlib1g1:1.2.3.3.dfsg-12  compression library - runtime

Versions of packages ghostscript recommends:
ii  psfontmgr0.11.10-0.2 PostScript font manager -- part of

Versions of packages ghostscript suggests:
ii  ghostscript-x  8.63.dfsg.1-2 The GPL Ghostscript PostScript/PDF
ii  hpijs  2.8.6.b-4 HP Linux Printing and Imaging - gs

-- no debconf information



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