Invalid pointer

[Michael Hooker]

free(): invalid pointer
Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) GLib.SList.g_free (intptr) [0x00002] in <5a439e0caae7469886e7119d9f6bc621>:0
  at GLib.ListBase.Empty () [0x000b5] in <5a439e0caae7469886e7119d9f6bc621>:0
  at GLib.ListBase.Dispose (bool) [0x00000] in <5a439e0caae7469886e7119d9f6bc621>:0
  at GLib.ListBase.Finalize () [0x00000] in <5a439e0caae7469886e7119d9f6bc621>:0
  at (wrapper runtime-invoke) object.runtime_invoke_virtual_void__this__ (object,intptr,intptr,intptr) [0x0001e] in <d0e12f672b88444ab4b6d9b2ecf20142>:0
/proc/self/maps:
408d5000-408e5000 rwxp 00000000 00:00 0
41b87000-41cd7000 rwxp 00000000 00:00 0
5646c8c9a000-5646c8cc5000 r--p 00000000 fd:00 39193121 /usr/bin/mono-sgen
5646c8cc5000-5646c8fbb000 r-xp 0002b000 fd:00 39193121 /usr/bin/mono-sgen
5646c8fbb000-5646c90e8000 r--p 00321000 fd:00 39193121 /usr/bin/mono-sgen
5646c90e9000-5646c90f0000 r--p 0044e000 fd:00 39193121 /usr/bin/mono-sgen
5646c90f0000-5646c90f5000 rw-p 00455000 fd:00 39193121 /usr/bin/mono-sgen
5646c90f5000-5646c9186000 rw-p 00000000 00:00 0
5646ca276000-5646cb9ce000 rw-p 00000000 00:00 0 [heap]
7f4ba0000000-7f4ba0021000 rw-p 00000000 00:00 0
7f4ba0021000-7f4ba4000000 ---p 00000000 00:00 0
7f4ba8000000-7f4ba8021000 rw-p 00000000 00:00 0
7f4ba8021000-7f4bac000000 ---p 00000000 00:00 0
7f4bac000000-7f4bac021000 rw-p 00000000 00:00 0
7f4bac021000-7f4bb0000000 ---p 00000000 00:00 0
7f4bb0000000-7f4bb0021000 rw-p 00000000 00:00 0
7f4bb0021000-7f4bb4000000 ---p 00000000 00:00 0
7f4bb6ffe000-7f4bb6fff000 ---p 00000000 00:00 0
7f4bb6fff000-7f4bb7000000 rw-p 00000000 00:00 0
7f4bb7000000-7f4bb7008000 ---p 00000000 00:00 0
7f4bb7008000-7f4bb77ff000 rw-p 00000000 00:00 0
7f4bb77ff000-7f4bb7800000 ---p 00000000 00:00 0
7f4bb7800000-7f4bb7801000 rw-p 00000000 00:00 0
7f4bb7801000-7f4bb7809000 ---p 00000000 00:00 0
7f4bb7809000-7f4bb8000000 rw-p 00000000 00:00 0
Memory around native instruction pointer (0x7f4bee8b6ed7):
0x7f4bee8b6ec7 d2 4c 89 ce bf 02 00 00 00 b8 0e 00 00 00 0f 05 .L..............
0x7f4bee8b6ed7 48 8b 8c 24 08 01 00 00 64 48 33 0c 25 28 00 00 H..$....dH3.%(..
0x7f4bee8b6ee7 00 44 89 c0 75 1f 48 81 c4 18 01 00 00 c3 0f 1f .D..u.H.........
0x7f4bee8b6ef7 00 48 8b 15 71 ff 19 00 f7 d8 41 b8 ff ff ff ff .H..q.....A.....

Native stacktrace:

 /usr/bin/mono(+0x12296d) [0x5646c8dbc96d]
 /usr/bin/mono(+0x122c87) [0x5646c8dbcc87]
 /usr/bin/mono(+0xba8e4) [0x5646c8d548e4]
 /lib/x86_64-linux-gnu/libpthread.so.0(+0x13f40) [0x7f4beea8bf40]
 /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7) [0x7f4bee8b6ed7]
 /lib/x86_64-linux-gnu/libc.so.6(abort+0x121) [0x7f4bee898535]
 /lib/x86_64-linux-gnu/libc.so.6(+0x8c726) [0x7f4bee8ff726]
 /lib/x86_64-linux-gnu/libc.so.6(+0x9359a) [0x7f4bee90659a]
 /lib/x86_64-linux-gnu/libc.so.6(+0x953cc) [0x7f4bee9083cc]
 [0x41cd417d]
Pkilling 0x7f4bb77fe700 from 0x7f4beb93d700
Pkilling 0x7f4bb7fff700 from 0x7f4beb93d700
Pkilling 0x7f4bd8552700 from 0x7f4beb93d700
Pkilling 0x7f4bee86e780 from 0x7f4beb93d700
Pkilling 0x7f4bdb7fe700 from 0x7f4beb93d700
Pkilling 0x7f4bdbfff700 from 0x7f4beb93d700
Pkilling 0x7f4bd8753700 from 0x7f4beb93d700
Entering thread summarizer pause from 0x7f4beb93d700
Finished thread summarizer pause from 0x7f4beb93d700.

Waiting for dumping threads to resume

Debug info from gdb:

[New LWP 3347]
[New LWP 3348]
[New LWP 3349]
[New LWP 3350]
[New LWP 3353]
[New LWP 3420]
[New LWP 3421]
[New LWP 3422]
[New LWP 3423]
[New LWP 3424]
[New LWP 3425]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f4bee984729 in __GI___poll (fds=0x5646caaf4440, nfds=3, timeout=500) at ../sysdeps/unix/sysv/linux/poll.c:29
29 ../sysdeps/unix/sysv/linux/poll.c: No such file or directory.
  Id Target Id Frame
* 1 Thread 0x7f4bee86e780 (LWP 3346) "mono" 0x00007f4bee984729 in __GI___poll (fds=0x5646caaf4440, nfds=3, timeout=500) at ../sysdeps/unix/sysv/linux/poll.c:29
  2 Thread 0x7f4bedbff700 (LWP 3347) "SGen worker" futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5646c9109b48) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
  3 Thread 0x7f4beb93d700 (LWP 3348) "Finalizer" 0x00007f4beea8b91a in __waitpid (pid=3447, stat_loc=0x7f4beb93b3e4, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:30
  4 Thread 0x7f4be3fff700 (LWP 3349) "gmain" 0x00007f4bee984729 in __GI___poll (fds=0x5646ca5d1e40, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  5 Thread 0x7f4be37fe700 (LWP 3350) "gdbus" 0x00007f4bee984729 in __GI___poll (fds=0x5646ca5f2bb0, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  6 Thread 0x7f4bd91c4700 (LWP 3353) "threaded-ml" 0x00007f4bee984729 in __GI___poll (fds=0x7f4bc4007030, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
  7 Thread 0x7f4bb77fe700 (LWP 3420) "mono" futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f4bb77fdbc0, expected=0, futex_word=0x5646c9184768) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
  8 Thread 0x7f4bdb7fe700 (LWP 3421) "Thread Pool Wor" futex_abstimed_wait_cancelable (private=0, abstime=0x7f4bdb7fdd50, expected=0, futex_word=0x5646c90fb608) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  9 Thread 0x7f4bdbfff700 (LWP 3422) "Thread Pool Wor" futex_abstimed_wait_cancelable (private=0, abstime=0x7f4bdbffed50, expected=0, futex_word=0x5646c90fb608) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  10 Thread 0x7f4bb7fff700 (LWP 3423) "Thread Pool Wor" futex_abstimed_wait_cancelable (private=0, abstime=0x7f4bb7ffed50, expected=0, futex_word=0x5646c90fb608) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  11 Thread 0x7f4bd8753700 (LWP 3424) "Thread Pool Wor" futex_abstimed_wait_cancelable (private=0, abstime=0x7f4bd8752d50, expected=0, futex_word=0x5646c90fb608) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
  12 Thread 0x7f4bd8552700 (LWP 3425) "Thread Pool Wor" futex_abstimed_wait_cancelable (private=0, abstime=0x7f4bd8551d50, expected=0, futex_word=0x5646c90fb608) at ../sysdeps/unix/sysv/linux/futex-internal.h:205

Thread 12 (Thread 0x7f4bd8552700 (LWP 3425)):
#0 futex_abstimed_wait_cancelable (private=0, abstime=0x7f4bd8551d50, expected=0, futex_word=0x5646c90fb608) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1 do_futex_wait (sem=sem@entry=0x5646c90fb608, abstime=abstime@entry=0x7f4bd8551d50) at sem_waitcommon.c:111
#2 0x00007f4beea8a383 in __new_sem_wait_slow (sem=0x5646c90fb608, abstime=0x7f4bd8551d50) at sem_waitcommon.c:181
#3 0x00005646c8f42564 in ?? ()
#4 0x00005646c8edc908 in ?? ()
#5 0x00007f4beea81182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6 0x00007f4bee990b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f4bd8753700 (LWP 3424)):
#0 futex_abstimed_wait_cancelable (private=0, abstime=0x7f4bd8752d50, expected=0, futex_word=0x5646c90fb608) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1 do_futex_wait (sem=sem@entry=0x5646c90fb608, abstime=abstime@entry=0x7f4bd8752d50) at sem_waitcommon.c:111
#2 0x00007f4beea8a383 in __new_sem_wait_slow (sem=0x5646c90fb608, abstime=0x7f4bd8752d50) at sem_waitcommon.c:181
#3 0x00005646c8f42564 in ?? ()
#4 0x00005646c8edc908 in ?? ()
#5 0x00007f4beea81182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6 0x00007f4bee990b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f4bb7fff700 (LWP 3423)):
#0 futex_abstimed_wait_cancelable (private=0, abstime=0x7f4bb7ffed50, expected=0, futex_word=0x5646c90fb608) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1 do_futex_wait (sem=sem@entry=0x5646c90fb608, abstime=abstime@entry=0x7f4bb7ffed50) at sem_waitcommon.c:111
#2 0x00007f4beea8a383 in __new_sem_wait_slow (sem=0x5646c90fb608, abstime=0x7f4bb7ffed50) at sem_waitcommon.c:181
#3 0x00005646c8f42564 in ?? ()
#4 0x00005646c8edc908 in ?? ()
#5 0x00007f4beea81182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6 0x00007f4bee990b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f4bdbfff700 (LWP 3422)):
#0 futex_abstimed_wait_cancelable (private=0, abstime=0x7f4bdbffed50, expected=0, futex_word=0x5646c90fb608) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1 do_futex_wait (sem=sem@entry=0x5646c90fb608, abstime=abstime@entry=0x7f4bdbffed50) at sem_waitcommon.c:111
#2 0x00007f4beea8a383 in __new_sem_wait_slow (sem=0x5646c90fb608, abstime=0x7f4bdbffed50) at sem_waitcommon.c:181
#3 0x00005646c8f42564 in ?? ()
#4 0x00005646c8edc908 in ?? ()
#5 0x00007f4beea81182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6 0x00007f4bee990b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f4bdb7fe700 (LWP 3421)):
#0 futex_abstimed_wait_cancelable (private=0, abstime=0x7f4bdb7fdd50, expected=0, futex_word=0x5646c90fb608) at ../sysdeps/unix/sysv/linux/futex-internal.h:205
#1 do_futex_wait (sem=sem@entry=0x5646c90fb608, abstime=abstime@entry=0x7f4bdb7fdd50) at sem_waitcommon.c:111
#2 0x00007f4beea8a383 in __new_sem_wait_slow (sem=0x5646c90fb608, abstime=0x7f4bdb7fdd50) at sem_waitcommon.c:181
#3 0x00005646c8f42564 in ?? ()
#4 0x00005646c8edc908 in ?? ()
#5 0x00007f4beea81182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6 0x00007f4bee990b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f4bb77fe700 (LWP 3420)):
#0 futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f4bb77fdbc0, expected=0, futex_word=0x5646c9184768) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1 __pthread_cond_wait_common (abstime=0x7f4bb77fdc60, mutex=0x5646c9184780, cond=0x5646c9184740) at pthread_cond_wait.c:533
#2 __pthread_cond_timedwait (cond=0x5646c9184740, mutex=0x5646c9184780, abstime=0x7f4bb77fdc60) at pthread_cond_wait.c:667
#3 0x00005646c8f9d02b in ?? ()
#4 0x00005646c8fa7ad0 in ?? ()
#5 0x00005646c8f41df3 in ?? ()
#6 0x00005646c8edc908 in ?? ()
#7 0x00007f4beea81182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8 0x00007f4bee990b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f4bd91c4700 (LWP 3353)):
#0 0x00007f4bee984729 in __GI___poll (fds=0x7f4bc4007030, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f4be018f9f1 in ?? () from /lib/x86_64-linux-gnu/libpulse.so.0
#2 0x00007f4be0181260 in pa_mainloop_poll () from /lib/x86_64-linux-gnu/libpulse.so.0
#3 0x00007f4be01818ae in pa_mainloop_iterate () from /lib/x86_64-linux-gnu/libpulse.so.0
#4 0x00007f4be0181960 in pa_mainloop_run () from /lib/x86_64-linux-gnu/libpulse.so.0
#5 0x00007f4be018f939 in ?? () from /lib/x86_64-linux-gnu/libpulse.so.0
#6 0x00007f4bd97bb788 in ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-12.2.so
#7 0x00007f4beea81182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#8 0x00007f4bee990b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f4be37fe700 (LWP 3350)):
#0 0x00007f4bee984729 in __GI___poll (fds=0x5646ca5f2bb0, nfds=3, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f4bea605bf6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f4bea605f82 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f4bea8a5e26 in ?? () from /lib/x86_64-linux-gnu/libgio-2.0.so.0
#4 0x00007f4bea62e87d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f4beea81182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6 0x00007f4bee990b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f4be3fff700 (LWP 3349)):
#0 0x00007f4bee984729 in __GI___poll (fds=0x5646ca5d1e40, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f4bea605bf6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f4bea605d1c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f4bea605d61 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4 0x00007f4bea62e87d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5 0x00007f4beea81182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#6 0x00007f4bee990b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f4beb93d700 (LWP 3348)):
#0 0x00007f4beea8b91a in __waitpid (pid=3447, stat_loc=0x7f4beb93b3e4, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:30
#1 0x00005646c8dbcaa6 in ?? ()
#2 0x00005646c8dbcc87 in ?? ()
#3 0x00005646c8d548e4 in ?? ()
#4 <signal handler called>
#5 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#6 0x00007f4bee898535 in __GI_abort () at abort.c:79
#7 0x00007f4bee8ff726 in __libc_message (action=action@entry=do_abort, fmt=fmt@entry=0x7f4beea25952 "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#8 0x00007f4bee90659a in malloc_printerr (str=str@entry=0x7f4beea23a9b "free(): invalid pointer") at malloc.c:5352
#9 0x00007f4bee9083cc in _int_free (av=<optimized out>, p=<optimized out>, have_lock=<optimized out>) at malloc.c:4181
#10 0x0000000041cd417d in ?? ()
#11 0x00005646caaddcc0 in ?? ()
#12 0x00005646ca286310 in ?? ()
#13 0x00007f4bee16cb65 in ?? ()
#14 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f4bedbff700 (LWP 3347)):
#0 futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x5646c9109b48) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1 __pthread_cond_wait_common (abstime=0x0, mutex=0x5646c9109b60, cond=0x5646c9109b20) at pthread_cond_wait.c:502
#2 __pthread_cond_wait (cond=0x5646c9109b20, mutex=0x5646c9109b60) at pthread_cond_wait.c:655
#3 0x00005646c8f8df56 in ?? ()
#4 0x00007f4beea81182 in start_thread (arg=<optimized out>) at pthread_create.c:486
#5 0x00007f4bee990b1f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f4bee86e780 (LWP 3346)):
#0 0x00007f4bee984729 in __GI___poll (fds=0x5646caaf4440, nfds=3, timeout=500) at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f4bea605bf6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007f4bea605f82 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007f4beaff83e7 in gtk_main () from /lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#4 0x0000000041cb6ac7 in ?? ()
#5 0x00005646ca28a1a8 in ?? ()
#6 0x0000000000000000 in ?? ()
[Inferior 1 (process 3346) detached]

=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

[Michael Hooker (dain-bramage)]

I am running Ubuntu 19.04

[sunukp (sunukp0)]

I am running 18.04.3 LTS. I am having the same error. I've installed pinta today.

free(): invalid pointer
Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) GLib.SList.g_free (intptr) <0x0005f>
  at GLib.ListBase.Empty () <0x0013c>
  at GLib.ListBase.Dispose (bool) <0x0000f>
  at GLib.ListBase.Finalize () <0x0001d>
  at (wrapper runtime-invoke) object.runtime_invoke_virtual_void__this__ (object,intptr,intptr,intptr) <0x00068>

Native stacktrace:

 /usr/bin/mono(+0xc8514) [0x5629b3471514]
 /lib/x86_64-linux-gnu/libpthread.so.0(+0x12890) [0x7fb9b3507890]
 /lib/x86_64-linux-gnu/libc.so.6(gsignal+0xc7) [0x7fb9b2f2ae97]
 /lib/x86_64-linux-gnu/libc.so.6(abort+0x141) [0x7fb9b2f2c801]
 /lib/x86_64-linux-gnu/libc.so.6(+0x89897) [0x7fb9b2f75897]
 /lib/x86_64-linux-gnu/libc.so.6(+0x9090a) [0x7fb9b2f7c90a]
 /lib/x86_64-linux-gnu/libc.so.6(cfree+0x4cc) [0x7fb9b2f83e1c]
 [0x41bc7050]

[ichro furuya (furuya)]

## There was a procedure that "Invalid pointer" error is likely to occur in "pinta".

---
#### usage environment:

Lubuntu 19.04 (Japanese environment)

$ uname -r
5.0.0-27-generic

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=19.04
DISTRIB_CODENAME=disco
DISTRIB_DESCRIPTION="Ubuntu 19.04"

$ pinta --version
1.6

---
#### To generate an anomaly:

1. Start the terminal.
2. Start "pinta" from the terminal.
$ pinta

3. "pinta" has started.
4. Open the image file (png or jpeg).
-> The cursor is "Paint Brush".

5. Click "x" in the upper right corner of the window to exit "pinta".
6. An error message was displayed on the terminal, followed by a prompt.

---

$ pinta
free(): invalid pointer
Stacktrace:

  at <unknown> <0xffffffff>
  at (wrapper managed-to-native) GLib.SList.g_free (intptr) [0x00002] in <5a439e0caae7469886e7119d9f6bc621>:0
  at GLib.ListBase.Empty () [0x000b5] in <5a439e0caae7469886e7119d9f6bc621>:0
  at GLib.ListBase.Dispose (bool) [0x00000] in <5a439e0caae7469886e7119d9f6bc621>:0
  at GLib.ListBase.Finalize () [0x00000] in <5a439e0caae7469886e7119d9f6bc621>:0
  at (wrapper runtime-invoke) object.runtime_invoke_virtual_void__this__ (object,intptr,intptr,intptr) [0x0001e] in <d0e12f672b88444ab4b6d9b2ecf20142>:0
/proc/self/maps:
40af7000-40b07000 rwxp 00000000 00:00 0
40e77000-40fc7000 rwxp 00000000 00:00 0
55b83b19b000-55b83b1c6000 r--p 00000000 08:11 1070429 /usr/bin/mono-sgen
55b83b1c6000-55b83b4bc000 r-xp 0002b000 08:11 1070429 /usr/bin/mono-sgen
55b83b4bc000-55b83b5e9000 r--p 00321000 08:11 1070429 /usr/bin/mono-sgen
55b83b5ea000-55b83b5f1000 r--p 0044e000 08:11 1070429 /usr/bin/mono-sgen
55b83b5f1000-55b83b5f6000 rw-p 00455000 08:11 1070429 /usr/bin/mono-sgen
55b83b5f6000-55b83b687000 rw-p 00000000 00:00 0
55b83c83e000-55b83d892000 rw-p 00000000 00:00 0 [heap]
7fbae8000000-7fbae8021000 rw-p 00000000 00:00 0
7fbae8021000-7fbaec000000 ---p 00000000 00:00 0
7fbaed089000-7fbaee480000 r--p 00000000 08:11 1314664 /usr/share/fonts/opentype/noto/NotoSansCJK-Bold.ttc
7fbaee480000-7fbaee52d000 r--p 00000000 08:11 1316619 /usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf
7fbaee52d000-7fbaee58d000 rw-s 00000000 00:05 21430277 /SYSV00000000 (deleted)
7fbaee58d000-7fbaee591000 r--p 00000000 08:11 1062029 /usr/lib/x86_64-linux-gnu/libjpeg.so.8.2.2
7fbaee591000-7fbaee5d4000 r-xp 00004000 08:11 1062029 /usr/lib/x86_64-linux-gnu/libjpeg.so.8.2.2
7fbaee5d4000-7fbaee60e000 r--p 00047000 08:11 1062029 /usr/lib/x86_64-linux-gnu/libjpeg.so.8.2.2
7fbaee60e000-7fbaee60f000 r--p 00080000 08:11 1062029 /usr/lib/x86_64-linux-gnu/libjpeg.so.8.2.2
7fbaee60f000-7fbaee610000 rw-p 00081000 08:11 1062029 /usr/lib/x86_64-linux-gnu/libjpeg.so.8.2.2
7fbaee610000-7fbaee611000 r--p 00000000 08:11 1061993 /usr/lib/x86_64-linux-gnu/libicudata.so.63.1
7fbaee611000-7fbaee612000 r...

[Rob Quist (rob-quist)]

I've noticed a similar crash quite a few times in a row. An invalid pointer crash seems to be reproducable this way. Some points might be useless and I think its related to the "rectangle select" not being cleared properly (some unusual things are happening here)

1. Open a PNG image in Pinta
2. Select the "Rectangle Select"
3. Go to filter -> blur -> gaussian blur -> set to 14 and blur
4. Save image
5. Open another image
6. Notice that the rectangle select is no longer visible, but hovering over the original points still generates a "hand / drag" cursor at that point
7. Dragging a new rectangle seems to crash the application now

Not sure if this is related, but also seeing a similar invalid pointer error.