[Freewx-maint] Bug#794821: libwxbase3.0-0: segmentation fault (SIGSEGV) with gnuplot5

[Vincent Lefevre]

Package: libwxbase3.0-0
Version: 3.0.2+dfsg-1
Severity: important

A reproducible crash in /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
with gnuplot5:

------------------------------------------------------------------------
#!/bin/sh

set -e

cat <<EOF > tmpfile-plot
0 0
10 10
EOF

gnuplot -persist <<EOF
set term wxt
plot "tmpfile-plot" using 1:2 t '' with line
EOF

rm tmpfile-plot
echo "Scroll with the mouse wheel -> gnuplot crashes (see 'core' file)."
------------------------------------------------------------------------

Core was generated by `/usr/bin/gnuplot -persist'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f8bd16fc2c7 in ?? ()
   from /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0

The backtrace:

Thread 1 (Thread 0x7f8bd2dd4a00 (LWP 9205)):
#0  0x00007f8bd16fc2c7 in  () at /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#1  0x00007f8bd16fc989 in wxThread::Wait(wxThreadWait) () at /usr/lib/x86_64-linux-gnu/libwx_baseu-3.0.so.0
#2  0x00007f8bd2d009ce in  ()
#3  0x00007f8bd2ca5a5a in  ()
#4  0x00007f8bd2c080bd in  ()
#5  0x00007f8bceb1cb45 in __libc_start_main (main=0x7f8bd2c07a70, argc=2, argv=0x7ffe756fde98, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe756fde88) at libc-start.c:287
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 4204190694647783783, 140238513017482, 140730868686480, 0, 0, -4205055871845408409, -4228928106766671513}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffe756fdeb0, 0x7f8bd2bce1a8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 1970265776}}}
        not_first_call = <optimized out>
#6  0x00007f8bd2c092b3 in  ()

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

Kernel: Linux 3.16.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libwxbase3.0-0 depends on:
ii  libc6       2.19-19
ii  libexpat1   2.1.0-7
ii  libgcc1     1:5.1.1-14
ii  libstdc++6  5.1.1-14
ii  zlib1g      1:1.2.8.dfsg-2+b1

libwxbase3.0-0 recommends no packages.

libwxbase3.0-0 suggests no packages.

-- no debconf information