Package: x11vnc Version: 0.9.13-2 Followup-For: Bug #859213 I confirm this bug. Here is the stacktrace I just got:
#0 0xf7ffb425 in __kernel_vsyscall () #1 0xf782ddc0 in __libc_signal_restore_set (set=0xffff9390) at ../sysdeps/unix/sysv/linux/nptl-signals.h:79 #2 __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:48 #3 0xf782f287 in __GI_abort () at abort.c:89 #4 0xf786937f in __libc_message (do_abort=<optimized out>, fmt=<optimized out>) at ../sysdeps/posix/libc_fatal.c:175 #5 0xf78f9d77 in __GI___fortify_fail (msg=0xf79614f5 "stack smashing detected") at fortify_fail.c:30 #6 0xf78f9d38 in __stack_chk_fail () at stack_chk_fail.c:28 #7 0x5661a3d4 in __stack_chk_fail_local () #8 0x56614b79 in record_CW (ptr=ptr@entry=0x1 <error: Cannot access memory at address 0x1>, rec_data=rec_data@entry=0x569e0ec0) at xrecord.c:1347 #9 0x56615041 in record_switch (ptr=0x1 <error: Cannot access memory at address 0x1>, rec_data=0x569e0ec0) at xrecord.c:1387 #10 0xf7c2458a in ?? () from /usr/lib/i386-linux-gnu/libXtst.so.6 #11 0xf7c24a36 in ?? () from /usr/lib/i386-linux-gnu/libXtst.so.6 #12 0xf7adb7ff in ?? () from /usr/lib/i386-linux-gnu/libX11.so.6 #13 0xf7adc24b in _XEventsQueued () from /usr/lib/i386-linux-gnu/libX11.so.6 #14 0xf7acd762 in XPending () from /usr/lib/i386-linux-gnu/libX11.so.6 #15 0xf7c259d8 in XRecordProcessReplies () from /usr/lib/i386-linux-gnu/libXtst.so.6 #16 0x565f2706 in check_xrecord_mouse () at userinput.c:2988 #17 check_xrecord () at userinput.c:3164 #18 0x565fdd9d in check_user_input (dt=0.00043401506263762712, dtr=0.014273106004111469, tile_diffs=0, cnt=0xffff9e8c) at userinput.c:5712 #19 0x565c44b0 in watch_loop () at screen.c:4561 #20 0x5656537f in main (argc=<optimized out>, argv=<optimized out>) at x11vnc.c:5990 This seems to match perfectly with the patch you linked. Dear maintainer, please apply this patch soon. Some instances of the bug are 100% reproducible to me, makeing me unable to open some popup-menus without crashing x11vnc. Best regards, Celelibi -- System Information: Debian Release: 9.0 APT prefers testing APT policy: (990, 'testing'), (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'unstable') Architecture: i386 (x86_64) Kernel: Linux 3.10.11 (SMP w/2 CPU cores; PREEMPT) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/bash Init: sysvinit (via /sbin/init) Versions of packages x11vnc depends on: ii libavahi-client3 0.6.32-2 ii libavahi-common3 0.6.32-2 ii libc6 2.24-10 ii libjpeg62-turbo 1:1.5.1-2 ii libssl1.1 1.1.0e-1 ii libvncclient1 0.9.11+dfsg-1 ii libvncserver1 0.9.11+dfsg-1 ii libx11-6 2:1.6.4-3 ii libxdamage1 1:1.1.4-2+b3 ii libxext6 2:1.3.3-1+b2 ii libxfixes3 1:5.0.3-1 ii libxinerama1 2:1.1.3-1+b3 ii libxrandr2 2:1.5.1-1 ii libxtst6 2:1.2.3-1 ii openssl 1.1.0e-1 ii tk 8.6.0+9 ii x11vnc-data 0.9.13-2 ii zlib1g 1:1.2.8.dfsg-5 x11vnc recommends no packages. x11vnc suggests no packages. -- no debconf information
