pkg/59316: pkg_add segfaults trying to install a certain binary package on Linux Debian 12 / x86-64

[thomas.orgis%uni-hamburg.de@localhost]

>Number:         59316
>Category:       pkg
>Synopsis:       pkg_add segfaults trying to install a certain binary package on Linux Debian 12 / x86-64
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Apr 17 21:05:00 +0000 2025
>Originator:     Dr. Thomas Orgis
>Release:        2025Q1
>Organization:
University of Hamburg
>Environment:
Linux hummel2-front2 6.6.86-rrz6 #1 SMP Wed Apr  9 11:12:09 CEST 2025 x86_64 GNU/Linux
>Description:
I accidentally built the wrong samba package, net/samba (3) instead of net/samba4, which I intended to fix/test.

The package file got built, but pkg_add segfaults trying to install it. Seems like some malformed printf:



$ gdb .prefix/sbin/pkg_add
GNU gdb (Debian 13.1-3) 13.1
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
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Reading symbols from .prefix/sbin/pkg_add...
(gdb) run -K /sw/env/gcc-13.2.0_openmpi-4.1.6/pkgsrc/2025Q1-devel/pkgdb samba-3.6.25nb44.tgz
Starting program: /sw/env/gcc-13.2.0_openmpi-4.1.6/pkgsrc/2025Q1-devel/sbin/pkg_add -K /sw/env/gcc-13.2.0_openmpi-4.1.6/pkgsrc/2025Q1-devel/pkgdb samba-3.6.25nb44.tgz
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pkg_add: 
Program received signal SIGSEGV, Segmentation fault.
__strlen_evex () at ../sysdeps/x86_64/multiarch/strlen-evex.S:79
79      ../sysdeps/x86_64/multiarch/strlen-evex.S: No such file or directory.
(gdb) where
#0  __strlen_evex () at ../sysdeps/x86_64/multiarch/strlen-evex.S:79
#1  0x0000155555391258 in __vfprintf_internal (s=s@entry=0x7fffffffb9b0, format=0x483950 "%s: Installed package `%s' conflicts with `%s' when trying to install `%s'.", ap=0x7fffffffdbc0, 
    mode_flags=0) at ./stdio-common/vfprintf-process-arg.c:397
#2  0x00001555553918ed in buffered_vfprintf (s=s@entry=0x155555506680 <_IO_2_1_stderr_>, 
    format=format@entry=0x483950 "%s: Installed package `%s' conflicts with `%s' when trying to install `%s'.", args=<optimized out>, mode_flags=mode_flags@entry=0)
    at ./stdio-common/vfprintf-internal.c:1748
#3  0x0000155555390953 in __vfprintf_internal (s=s@entry=0x155555506680 <_IO_2_1_stderr_>, format=0x483950 "%s: Installed package `%s' conflicts with `%s' when trying to install `%s'.", 
    ap=<optimized out>, mode_flags=0) at ./stdio-common/vfprintf-internal.c:740
#4  0x00001555553a76e8 in locked_vfxprintf (fp=fp@entry=0x155555506680 <_IO_2_1_stderr_>, fmt=<optimized out>, ap=0x7fffffffdbc0, mode_flags=0) at ./stdio-common/fxprintf.c:30
#5  0x00001555553a77b1 in __vfxprintf (fp=0x155555506680 <_IO_2_1_stderr_>, fmt=fmt@entry=0x483950 "%s: Installed package `%s' conflicts with `%s' when trying to install `%s'.", 
    ap=ap@entry=0x7fffffffdbc0, mode_flags=mode_flags@entry=0) at ./stdio-common/fxprintf.c:71
#6  0x00001555554365ed in __vwarnx_internal (format=format@entry=0x483950 "%s: Installed package `%s' conflicts with `%s' when trying to install `%s'.", ap=ap@entry=0x7fffffffdbc0, 
    mode_flags=mode_flags@entry=0) at ./misc/err.c:47
#7  0x000015555543682b in __GI_vwarnx (ap=0x7fffffffdbc0, format=0x483950 "%s: Installed package `%s' conflicts with `%s' when trying to install `%s'.") at ./misc/err.c:84
#8  __GI_warnx (format=format@entry=0x483950 "%s: Installed package `%s' conflicts with `%s' when trying to install `%s'.") at ./misc/err.c:98
#9  0x00000000004070b2 in check_explicit_conflict (pkg=0x4b3770) at perform.c:1081
#10 pkg_do (pkgpath=<optimized out>, mark_automatic=0, top_level=top_level@entry=1) at perform.c:1583
#11 0x0000000000407afc in pkg_perform (pkgs=pkgs@entry=0x7fffffffde10) at perform.c:1713
#12 0x0000000000404ee9 in main (argc=<optimized out>, argv=<optimized out>) at main.c:204

I am not sure which conflict it wants to report. I tried to build samba4 before, so maybe some versioned deps of that that conflict with deps of samba (3) ? no doesn't make sense. I hope the backtrace above is enough for a pkgsrc developer to dry-debug and fix this. 

These are all currently installed packages while trying to pkg_add samba-3.6.25nb44.tgz:

asciidoc-10.2.1nb3           gettext-tools-0.22.5          libffi-3.4.7              mozilla-rootcerts-1.1.20241118  p5-Net-SSLeay-1.94nb1       py312-pyparsing-3.2.1nb1
autoconf-2.72                giflib-5.2.2                  libgcrypt-1.11.0nb2       mpfr-4.2.1                      p5-Parse-Yapp-1.21nb7       py312-pyproject_hooks-1.2.0nb1
automake-1.16.5nb3           git-2.48.1                    libgetopt-1.4.6           nasm-2.16.01                    p5-Socket6-0.29nb6          py312-setuptools-75.8.2
bison-3.8.2nb1               git-base-2.48.1               libgpg-error-1.51         nawk-20230909                   p5-TimeDate-2.33nb4         py312-setuptools_scm-8.2.0
bmake-20240909               git-contrib-2.48.1            libidn-1.42               nbpatch-20151107                p5-gettext-1.07nb9          py312-trove-classifiers-2025.3.13.13
bootstrap-mk-files-20240422  git-docs-2.48.1               libidn2-2.3.7             ncurses-6.5                     pango-1.56.1                py312-typing-extensions-4.12.2nb1
brotli-1.1.0                 git-perlscripts-2.48.1        libimagequant-4.3.4       nettle-3.10.1                   pax-20210219                py312-xcbgen-1.17.0
bsdtar-3.7.7nb1              glib2-2.82.5                  libjpeg-turbo-3.1.0       nghttp2-1.65.0                  pcre2-10.45                 python27-2.7.18nb19
bzip2-1.0.8                  glib2-tools-2.82.5            libnbcompat-20250303      ninja-build-1.12.1nb1           perl-5.40.1nb1              python312-3.12.9
cairo-1.18.2                 gmp-6.3.0                     libslang-2.3.3            openldap-client-2.6.9           pixman-0.44.2               raqm-0.10.2
cargo-c-0.9.32nb1            gnuplot-6.0.2nb1              libssh2-1.11.1            openssl-3.4.1                   pkg_install-20250219        re2c-4.1
checkperms-1.12              gnutls-3.8.9                  libtasn1-4.20.0           p11-kit-0.25.5                  pkg_install-info-4.5nb3     readline-8.2nb2
cmake-3.31.6                 gobject-introspection-1.82.0  libtool-2.4.7             p5-Authen-SASL-2.1700nb1        pkgconf-2.4.3               rhash-1.4.5
cmocka-1.1.7                 gperf-3.1                     libtool-base-2.4.7nb1     p5-Capture-Tiny-0.50            pkgdb.byfile.db             rust-1.83.0
curl-8.12.1                  graphite2-1.3.14nb3           libtool-fortran-2.4.7nb1  p5-DBD-SQLite-1.76nb4           pkgdiff-1.12                sqlite3-3.48.0
cwrappers-20220403           harfbuzz-10.4.0               libtool-info-2.4.7        p5-DBI-1.647                    png-1.6.47                  talloc-2.4.3
db4-4.8.30nb1                help2man-1.49.3               libunistring-1.2          p5-Digest-HMAC-1.05nb1          popt-1.19                   tdb-1.4.13
digest-20220214              itstool-2.0.7nb5              libunwind-18.1.8          p5-Email-Valid-1.204nb1         py312-build-1.2.2.post1nb1  tevent-0.16.2
docbook-xml-4.5              jansson-2.14                  libuuid-2.40.2            p5-Error-0.17030                py312-calver-2022.6.26      tiff-4.7.0
docbook-xsl-1.79.2nb7        jbigkit-2.1nb1                libuv-1.50.0              p5-GSSAPI-0.28nb16              py312-dns-2.7.0             tradcpp-0.5.3
expat-2.6.3                  libICE-1.1.2                  libwebp-1.5.0             p5-IO-Socket-INET6-2.73nb3      py312-flit_core-3.11.0      xcb-proto-1.17.0nb4
flex-2.6.4                   libSM-1.2.6                   libxcb-1.17.0             p5-IO-Socket-SSL-2.089nb1       py312-hatchling-1.27.0      xmlcatmgr-2.2nb1
fontconfig-2.15.0            libX11-1.8.12                 libxml2-2.12.10           p5-JSON-4.10nb2                 py312-idna-3.10nb1          xmlto-0.0.28nb14
freetype2-2.13.3             libXau-1.0.12                 libxslt-1.1.42nb3         p5-MailTools-2.22               py312-installer-0.7.0nb3    xorgproto-2024.1
fribidi-1.0.16               libXdmcp-1.1.5                llvm-18.1.8nb4            p5-Mozilla-CA-20250202          py312-iso8601-2.1.0nb1      xtrans-1.6.0
gd-2.3.3nb14                 libXext-1.3.6                 lmdb-0.9.33               p5-Net-3.15nb2                  py312-libxml2-2.12.10       xz-5.6.4
gdb-10.1nb6                  libXft-2.3.8nb1               lz4-1.10.0                p5-Net-DNS-1.50                 py312-markdown-3.7nb1       zlib-1.3.1
gdbm-1.24                    libXrender-0.9.12             lzo-2.10                  p5-Net-Domain-TLD-1.75nb8       py312-packaging-24.2nb1     zstd-1.5.7
gdbm_compat-1.24             libXt-1.3.1                   m4-1.4.19nb1              p5-Net-IP-1.26nb12              py312-pathspec-0.12.1nb1
getopt-1.1.6                 libarchive-3.7.7nb1           meson-1.7.0               p5-Net-LibIDN-0.12nb16          py312-pluggy-1.5.0
gettext-lib-0.22.5           libcerf-2.4                   mktools-20250213          p5-Net-SMTP-SSL-1.04nb8         py312-poetry-core-2.1.1


PS: Trying to debug this, I noticed that pkgsrc has ancient gdb that does not support the libraries on a Debian 12 stable system. We got gdb 10.1 there, while 16.2 is current. I tried an update of the package, which does build on a separate box, but produces weird libtool errors on my main system where I use my own toolchain between Debian and pkgsrc. Some cwrapper interaction, maybe:-/ The above output is from gdb-13.1, the Debian package.
>How-To-Repeat:
Probably try to build and install a certain set of packages. Then try to build and install net/samba. Not sure.

>Fix: