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Bug#1013309: vlc-cache-gen segfaults while dpkg is processing triggers for libvlc-bin



Package: libvlc-bin
Version: 3.0.17.4-3
Severity: important

While I was upgrading my system, I noticed the following warning after dpkg finishes:

Segmentation fault
WARNING: Regenerating VLC plugin cache failed.
Please run '/usr/lib/x86_64-linux-gnu/vlc/vlc-cache-gen /usr/lib/x86_64-linux-gnu/vlc/plugins' manually.

I ran the command as told, and it still resulted in segfault.

I've hooked up a gdb, and here's what gdb tells me:

(gdb) set args /usr/lib/x86_64-linux-gnu/vlc/plugins
(gdb) run
Starting program: /usr/lib/x86_64-linux-gnu/vlc/vlc-cache-gen /usr/lib/x86_64-linux-gnu/vlc/plugins
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
__GI___pthread_rwlock_wrlock (rwlock=0x0) at pthread_rwlock_wrlock.c:27
27      pthread_rwlock_wrlock.c: No such file or directory.


-- System Information:
Debian Release: bookworm/sid
  APT prefers experimental
  APT policy: (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.18.0-1-amd64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN, TAINT_FIRMWARE_WORKAROUND
Locale: LANG=en_PH.UTF-8, LC_CTYPE=en_PH.UTF-8 (charmap=UTF-8), LANGUAGE=en_PH:en
Shell: /bin/sh linked to /bin/dash
Init: OpenRC (via /run/openrc), PID 1: init
LSM: AppArmor: enabled

Versions of packages libvlc-bin depends on:
ii  libc6    2.33-7
ii  libvlc5  3.0.17.4-3

libvlc-bin recommends no packages.

libvlc-bin suggests no packages.

Versions of packages libvlc5 depends on:
ii  libc6        2.33-7
ii  libvlccore9  3.0.17.4-3

libvlc5 recommends no packages.

Versions of packages vlc depends on:
ii  vlc-bin                  3.0.17.4-3
ii  vlc-plugin-base          3.0.17.4-3
ii  vlc-plugin-qt            3.0.17.4-3
ii  vlc-plugin-video-output  3.0.17.4-3

Versions of packages vlc recommends:
ii  vlc-l10n                   3.0.17.4-3
pn  vlc-plugin-access-extra    <none>
ii  vlc-plugin-notify          3.0.17.4-3
ii  vlc-plugin-samba           3.0.17.4-3
ii  vlc-plugin-skins2          3.0.17.4-3
ii  vlc-plugin-video-splitter  3.0.17.4-3
ii  vlc-plugin-visualization   3.0.17.4-3

Versions of packages vlc suggests:
ii  vlc-plugin-fluidsynth  3.0.17.4-3
pn  vlc-plugin-jack        <none>
ii  vlc-plugin-pipewire    3-2
pn  vlc-plugin-svg         <none>

Versions of packages vlc-bin depends on:
ii  libc6    2.33-7
ii  libvlc5  3.0.17.4-3

Versions of packages vlc-plugin-base depends on:
ii  liba52-0.7.4                         0.7.4-20
ii  libarchive13                         3.6.0-1
ii  libaribb24-0                         1.0.3-2
ii  libasound2                           1.2.6.1-2+b1
ii  libass9                              1:0.16.0-1
ii  libavahi-client3                     0.8-6
ii  libavahi-common3                     0.8-6
ii  libavc1394-0                         0.5.4-5
ii  libavcodec58                         7:4.4.2-1+b3
ii  libavformat58                        7:4.4.2-1+b3
ii  libavutil56                          7:4.4.2-1+b3
ii  libbluray2                           1:1.3.1-2
ii  libc6                                2.33-7
ii  libcairo2                            1.16.0-5
ii  libcddb2                             1.3.2-7
ii  libchromaprint1                      1.5.1-2
ii  libdav1d6                            1.0.0-2
ii  libdbus-1-3                          1.14.0-1devuan1
ii  libdc1394-25                         2.2.6-4
ii  libdca0                              0.0.7-2
ii  libdvbpsi10                          1.3.3-1
ii  libdvdnav4                           6.1.1-1
ii  libdvdread8                          6.1.3-1
ii  libebml5                             1.4.2-2
ii  libelogind-compat [libsystemd0]      246.10-5
ii  libeudev1 [libudev1]                 3.2.11-1
ii  libfaad2                             2.10.0-2
ii  libflac8                             1.3.4-2
ii  libfontconfig1                       2.13.1-4.4
ii  libfreetype6                         2.12.1+dfsg-2
ii  libfribidi0                          1.0.8-2.1
ii  libgcc-s1                            12.1.0-2
ii  libgcrypt20                          1.10.1-2
ii  libglib2.0-0                         2.72.2-2
ii  libgnutls30                          3.7.4-2
ii  libgpg-error0                        1.45-2
ii  libharfbuzz0b                        2.7.4-1+b1
ii  libixml10                            1:1.8.4-2
ii  libjpeg62-turbo                      1:2.1.2-1
ii  libkate1                             0.4.1-11
ii  liblirc-client0                      0.10.1-7
ii  liblua5.2-0                          5.2.4-2
ii  libmad0                              0.15.1b-10
ii  libmatroska7                         1.6.3-2
ii  libmpcdec6                           2:0.1~r495-2
ii  libmpeg2-4                           0.5.1-9
ii  libmpg123-0                          1.29.3-1
ii  libmtp9                              1.1.19-1
ii  libncursesw6                         6.3+20220423-2
ii  libnfs13                             4.0.0-1
ii  libogg0                              1.3.5-1
ii  libopenmpt-modplug1                  0.8.9.0-openmpt1-2
ii  libopus0                             1.3.1-2
ii  libpng16-16                          1.6.37-5
ii  libpostproc55                        7:4.4.2-1+b3
ii  libprotobuf-lite23                   3.12.4-1+b3
ii  libpulse0                            15.0+dfsg1-4+b1
ii  libraw1394-11                        2.1.2-2
ii  libresid-builder0c2a                 2.1.1-15+b1
ii  librsvg2-2                           2.54.4+dfsg-1
ii  libsamplerate0                       0.2.2-1
ii  libsdl-image1.2                      1.2.12-13+b1
ii  libsdl1.2debian                      1.2.15+dfsg2-6
ii  libsecret-1-0                        0.20.5-2
ii  libshine3                            3.1.1-2
ii  libshout3                            2.4.6-1+b1
ii  libsidplay2                          2.1.1-15+b1
ii  libsndio7.0                          1.8.1-1.1
ii  libsoxr0                             0.1.3-4
ii  libspatialaudio0                     0.3.0+git20180730+dfsg1-2+b1
ii  libspeex1                            1.2.0-1
ii  libspeexdsp1                         1.2.0-1
ii  libssh2-1                            1.10.0-3+b1
ii  libstdc++6                           12.1.0-2
ii  libswscale5                          7:4.4.2-1+b3
ii  libtag1v5                            1.12-1
ii  libtheora0                           1.1.1+dfsg.1-16
ii  libtinfo6                            6.3+20220423-2
ii  libtwolame0                          0.4.0-2
ii  libupnp13                            1:1.8.4-2
ii  libva-drm2                           2.14.0-1
ii  libva2                               2.14.0-1
ii  libvlccore9 [vlc-plugin-abi-3-0-0f]  3.0.17.4-3
ii  libvorbis0a                          1.3.7-1
ii  libvorbisenc2                        1.3.7-1
ii  libx264-164                          2:0.164.3095+gitbaee400-2
ii  libx265-199                          3.5-2
ii  libxcb-keysyms1                      0.4.0-1+b2
ii  libxcb1                              1.14-3
ii  libxml2                              2.9.14+dfsg-1
ii  libzvbi0                             0.2.35-19
ii  vlc-data                             3.0.17.4-3
ii  zlib1g                               1:1.2.11.dfsg-4

Versions of packages vlc-plugin-base recommends:
ii  xdg-utils  1.1.3-4.1

Versions of packages vlc-plugin-base suggests:
pn  libdvdcss2  <none>

Versions of packages vlc-plugin-fluidsynth depends on:
ii  fluid-soundfont-gm                   3.1-5.3
ii  libc6                                2.33-7
ii  libfluidsynth3                       2.2.7-1.1
ii  libvlccore9 [vlc-plugin-abi-3-0-0f]  3.0.17.4-3
ii  timgm6mb-soundfont                   1.3-5

Versions of packages vlc-plugin-notify depends on:
ii  libc6                                2.33-7
ii  libgdk-pixbuf-2.0-0                  2.42.8+dfsg-1
ii  libglib2.0-0                         2.72.2-2
ii  libgtk-3-0                           3.24.34-1
ii  libnotify4                           0.7.12-1
ii  libvlccore9 [vlc-plugin-abi-3-0-0f]  3.0.17.4-3

Versions of packages vlc-plugin-qt depends on:
ii  libc6                                2.33-7
ii  libgcc-s1                            12.1.0-2
ii  libqt5core5a                         5.15.2+dfsg-16+b2
ii  libqt5gui5                           5.15.2+dfsg-16+b2
ii  libqt5svg5                           5.15.2-4
ii  libqt5widgets5                       5.15.2+dfsg-16+b2
ii  libqt5x11extras5                     5.15.2-2
ii  libstdc++6                           12.1.0-2
ii  libvlccore9 [vlc-plugin-abi-3-0-0f]  3.0.17.4-3
ii  libwayland-client0                   1.20.0-1
ii  libx11-6                             2:1.7.5-1

Versions of packages vlc-plugin-qt recommends:
ii  vlc-bin  3.0.17.4-3

Versions of packages vlc-plugin-skins2 depends on:
ii  fonts-freefont-ttf                   20120503-10
ii  libc6                                2.33-7
ii  libfreetype6                         2.12.1+dfsg-2
ii  libfribidi0                          1.0.8-2.1
ii  libgcc-s1                            12.1.0-2
ii  libstdc++6                           12.1.0-2
ii  libvlccore9 [vlc-plugin-abi-3-0-0f]  3.0.17.4-3
ii  libx11-6                             2:1.7.5-1
ii  libxext6                             2:1.3.4-1
ii  libxinerama1                         2:1.1.4-3
ii  libxpm4                              1:3.5.12-1
ii  vlc-plugin-qt                        3.0.17.4-3

Versions of packages vlc-plugin-skins2 recommends:
ii  vlc-bin  3.0.17.4-3

Versions of packages vlc-plugin-video-output depends on:
ii  libaa1                               1.4p5-50
ii  libavcodec58                         7:4.4.2-1+b3
ii  libavutil56                          7:4.4.2-1+b3
ii  libc6                                2.33-7
ii  libcaca0                             0.99.beta20-2
ii  libegl1                              1.4.0-1
ii  libgl1                               1.4.0-1
ii  libgles2                             1.4.0-1
ii  libplacebo192                        4.192.1-1
ii  libva-drm2                           2.14.0-1
ii  libva-wayland2                       2.14.0-1
ii  libva-x11-2                          2.14.0-1
ii  libva2                               2.14.0-1
ii  libvlccore9 [vlc-plugin-abi-3-0-0f]  3.0.17.4-3
ii  libwayland-client0                   1.20.0-1
ii  libwayland-egl1                      1.20.0-1
ii  libx11-6                             2:1.7.5-1
ii  libxcb-keysyms1                      0.4.0-1+b2
ii  libxcb-shm0                          1.14-3
ii  libxcb-xv0                           1.14-3
ii  libxcb1                              1.14-3

Versions of packages vlc-plugin-video-splitter depends on:
ii  libc6                                2.33-7
ii  libvlccore9 [vlc-plugin-abi-3-0-0f]  3.0.17.4-3
ii  libxcb-randr0                        1.14-3
ii  libxcb1                              1.14-3

Versions of packages vlc-plugin-visualization depends on:
ii  libc6                                2.33-7
ii  libgl1                               1.4.0-1
ii  libvlccore9 [vlc-plugin-abi-3-0-0f]  3.0.17.4-3

-- no debconf information


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