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Bug#964312: marked as done (libswscale5: general protection fault in libswscale.so.5.7.100 / Segmentation fault)

Your message dated Tue, 04 Aug 2020 15:05:03 +0000
with message-id <E1k2yUx-0004M4-LQ@fasolo.debian.org>
and subject line Bug#964312: fixed in ffmpeg 7:4.3.1-1
has caused the Debian Bug report #964312,
regarding libswscale5: general protection fault in libswscale.so.5.7.100 / Segmentation fault
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
964312: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=964312
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: libswscale5
Version: 7:4.3-3
Severity: normal


Dear Maintainer,

dvbcut closes with a segmentation fault after the index file was
created.

6453 Segmentation fault      nice -n 19 dvbcut -idx
"${pathname}/${filename}.idx" "${pathname}/${filename}"

dmesg provides:
traps: dvbcut[4884] general protection fault ip:7f285ffa4ba2
sp:7ffdde55e5a8 error:0 in libswscale.so.5.7.100[7f285ff32000+7a000]

I was able to reproduce it in testing (without nvidia tainting the
kernel). The issue happens on my "real" system with sid as well.

downgrading dvbcut, libswscale5, libavutil56 to "stable" resolves the
issue.

While searching for a potential clue, I stumbled over
https://trac.ffmpeg.org/ticket/8747
not sure if this is related to this issue.


-- System Information:
Debian Release: bullseye/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.7.0-1-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages libswscale5 depends on:
ii  libavutil56  7:4.3-3
ii  libc6        2.30-8

libswscale5 recommends no packages.

libswscale5 suggests no packages.

-- no debconf information


Best Regards
  Joerg

--- End Message ---
--- Begin Message --- 
Source: ffmpeg
Source-Version: 7:4.3.1-1
Done: Jonas Smedegaard <dr@jones.dk>

We believe that the bug you reported is fixed in the latest version of
ffmpeg, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 964312@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Jonas Smedegaard <dr@jones.dk> (supplier of updated ffmpeg package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

Format: 1.8
Date: Tue, 04 Aug 2020 16:10:03 +0200
Source: ffmpeg
Architecture: source
Version: 7:4.3.1-1
Distribution: unstable
Urgency: high
Maintainer: Debian Multimedia Maintainers <debian-multimedia@lists.debian.org>
Changed-By: Jonas Smedegaard <dr@jones.dk>
Closes: 964312
Changes:
 ffmpeg (7:4.3.1-1) unstable; urgency=high
 .
   [ upstream ]
   * new maintenance release
     + fix libavformat heap-based buffer overflow in avio_get_str
       (CVE-2020-14212)
     + fix libavformat use-after-free in hls
       (CVE-2020-13904)
 .
   [ Jonas Smedegaard ]
   * add patch cherry-picked upstream
     to avoid libswscale segfault on SSSE3 capable systems
     closes: bug#964312, thanks to Jörg Schütter
   * Document omitted features in README.Debian and TODO.Debian
     (not rules file comments)
   * use debhelper compatibility level 12 (not 13)
   * set urgency=high due to security-related bugfixes
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 7fe9a4101acd90641f427f9e71bd89f1cf22b134 9379424 ffmpeg_4.3.1.orig.tar.xz
 099da53693cbe861b49456269ecfae39147831d8 520 ffmpeg_4.3.1.orig.tar.xz.asc
 8901bf56e2347a10948af479a137adb94c2c05f3 88928 ffmpeg_4.3.1-1.debian.tar.xz
 de808ae5416e95191c9bac5116d5e674ce90f44f 30795 ffmpeg_4.3.1-1_amd64.buildinfo
Checksums-Sha256:
 038352f7c975cb8d05fa56be90bc6a45442b40bedc7da0e805cbddd84200b937 5413 ffmpeg_4.3.1-1.dsc
 ad009240d46e307b4e03a213a0f49c11b650e445b1f8be0dda2a9212b34d2ffb 9379424 ffmpeg_4.3.1.orig.tar.xz
 e23034e1416aa5313978cdf9f1064c000e1b47660c6b9ff06250211ad5dda06b 520 ffmpeg_4.3.1.orig.tar.xz.asc
 ca67693836564e743db6b4c496d8372e7a6a26fda4e6af65f338440335bcd813 88928 ffmpeg_4.3.1-1.debian.tar.xz
 65c6d76e9cd278b6e089ed0793ffcdf9ce62659f8dbec97a6e1ecd14a38c4ba4 30795 ffmpeg_4.3.1-1_amd64.buildinfo
Files:
 e4f731839d6b581adfd0fc2cabeef513 5413 video optional ffmpeg_4.3.1-1.dsc
 5d1956bb552e91dc3b8287db346d0d58 9379424 video optional ffmpeg_4.3.1.orig.tar.xz
 b92d7d23c4d1cb477057955de4fdd027 520 video optional ffmpeg_4.3.1.orig.tar.xz.asc
 79b2c2e9283762ce70f376ec83289554 88928 video optional ffmpeg_4.3.1-1.debian.tar.xz
 228e6a533df86cadace77b6766fe3dce 30795 video optional ffmpeg_4.3.1-1_amd64.buildinfo

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--- End Message ---
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