FS#52951 - [etherape] "segfault at 4b7fe0018 ip 00000327ae81b289 sp 0000039bd71a0350" during nmap port scan
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Opened by Deactivated account (TechnicalTotoro) - Monday, 13 February 2017, 18:10 GMT
Last edited by Thorsten Töpper (Atsutane) - Saturday, 18 February 2017, 15:14 GMT
Opened by Deactivated account (TechnicalTotoro) - Monday, 13 February 2017, 18:10 GMT
Last edited by Thorsten Töpper (Atsutane) - Saturday, 18 February 2017, 15:14 GMT
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Details
Due to an unfortunate set of circumstances the following
command was run on my system:
nmap -sV -A -T aggressive 192.168.0-255.0-255 The command was only able to run a few seconds as I noticed that I had got the wrong alias shortly after due to the large amount of activity shown through Etherape. However, before I had managed to stop nmap, Etherape suddenly quit. I have found the following error with dmesg: Feb 13 17:29:40 [hostname] kernel: etherape[1166]: segfault at 4b7fe0018 ip 00000327ae81b289 sp 0000039bd71a0350 error 4 in libc-2.24.so[327ae7a4000+195000] And: Feb 13 17:29:42 [hostname] systemd-coredump[1902]: Process 1166 (etherape) of user 0 dumped core. Stack trace of thread 1166: #0 0x00000327ae81b289 malloc_consolidate (libc.so.6) #1 0x00000327ae81cd2a _int_malloc (libc.so.6) #2 0x00000327ae81deb1 _int_realloc (libc.so.6) #3 0x00000327ae81f4f9 realloc (libc.so.6) #4 0x00000327b054432a gnome_canvas_path_def_ensure_space (libgnomecanvas-2.so.0) #5 0x00000327b0544ed6 gnome_canvas_path_def_lineto (libgnomecanvas-2.so.0) #6 0x00000327b054547c gnome_canvas_path_def_closepath (libgnomecanvas-2.so.0) #7 0x00000327b054b04f n/a (libgnomecanvas-2.so.0) #8 0x00000327af7de6c0 g_object_set_valist (libgobject-2.0.so.0) #9 0x00000327b05558b3 gnome_canvas_item_set_valist (libgnomecanvas-2.so.0) #10 0x00000327b0555957 gnome_canvas_item_set (libgnomecanvas-2.so.0) #11 0x00000000004127b1 n/a (etherape) #12 0x0000000000412a5f n/a (etherape) #13 0x00000327aeebe204 g_tree_foreach (libglib-2.0.so.0) #14 0x0000000000413d5c update_diagram (etherape) #15 0x00000327aee9043a g_main_context_dispatch (libglib-2.0.so.0) #16 0x00000327aee907f0 n/a (libglib-2.0.so.0) #17 0x00000327aee90b12 g_main_loop_run (libglib-2.0.so.0) #18 0x00000327b00233a7 gtk_main (libgtk-x11-2.0.so.0) #19 0x000000000040c3e4 main (etherape) #20 0x00000327ae7c4291 __libc_start_main (libc.so.6) #21 0x000000000040c59a _start (etherape) Stack trace of thread 1173: #0 0x00000327af16610f pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x000000000040d82f n/a (etherape) #2 0x00000327af160454 start_thread (libpthread.so.0) #3 0x00000327ae88c7df __clone (libc.so.6) Stack trace of thread 1167: #0 0x00000327ae88348d poll (libc.so.6) #1 0x00000327aee90786 n/a (libglib-2.0.so.0) #2 0x00000327aee9089c g_main_context_iteration (libglib-2.0.so.0) #3 0x00000327aee908e1 n/a (libglib-2.0.so.0) #4 0x00000327aeeb80d5 n/a (libglib-2.0.so.0) #5 0x00000327af160454 start_thread (libpthread.so.0) #6 0x00000327ae88c7df __clone (libc.so.6) Stack trace of thread 1176: #0 0x00000327af16610f pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x000000000040d82f n/a (etherape) #2 0x00000327af160454 start_thread (libpthread.so.0) #3 0x00000327ae88c7df __clone (libc.so.6) Stack trace of thread 1172: #0 0x00000327af16610f pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x000000000040d82f n/a (etherape) #2 0x00000327af160454 start_thread (libpthread.so.0) #3 0x00000327ae88c7df __clone (libc.so.6) Stack trace of thread 1171: #0 0x00000327af16610f pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x000000000040d82f n/a (etherape) #2 0x00000327af160454 start_thread (libpthread.so.0) #3 0x00000327ae88c7df __clone (libc.so.6) Stack trace of thread 1174: #0 0x00000327af16610f pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x000000000040d82f n/a (etherape) #2 0x00000327af160454 start_thread (libpthread.so.0) #3 0x00000327ae88c7df __clone (libc.so.6) Stack trace of thread 1175: #0 0x00000327af16610f pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0) #1 0x000000000040d82f n/a (etherape) #2 0x00000327af160454 start_thread (libpthread.so.0) #3 0x00000327ae88c7df __clone (libc.so.6) I would rather not try to reproduce the segfault as I would prefer not scan my whole network with nmap so I hope that the logs are enough. |
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Closed by Thorsten Töpper (Atsutane)
Saturday, 18 February 2017, 15:14 GMT
Reason for closing: Not a bug
Additional comments about closing:
These stacks just looks like you ran out of memory and the crash happens outside the etherape code, it's simply that realloc fails. Yet in order to make sure I don't misinterpret this I followed your instructions and have now both etherape and nmap running for more than 20 minutes without a crash and I still have 2G of unused RAM which are not even used to cache data.
Saturday, 18 February 2017, 15:14 GMT
Reason for closing: Not a bug
Additional comments about closing:
These stacks just looks like you ran out of memory and the crash happens outside the etherape code, it's simply that realloc fails. Yet in order to make sure I don't misinterpret this I followed your instructions and have now both etherape and nmap running for more than 20 minutes without a crash and I still have 2G of unused RAM which are not even used to cache data.