Skip to content

Instantly share code, notes, and snippets.

@holishing
Created July 19, 2017 10:23
Show Gist options
  • Save holishing/60f1285473101c27ffd585c68db689bf to your computer and use it in GitHub Desktop.
Save holishing/60f1285473101c27ffd585c68db689bf to your computer and use it in GitHub Desktop.
After Enter (B)oards, SegFault.
bbs@debian:~$ gdb attach 1529 -ex cont
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
attach: No such file or directory.
Attaching to process 1529
Reading symbols from /home/bbs/bin/bbsd...done.
Reading symbols from /lib/i386-linux-gnu/libcrypt.so.1...Reading symbols from /usr/lib/debug/.build-id/49/4cf7f02e95dc15b3b177414fdf6e546f7c73e2.debug...done.
done.
Reading symbols from /lib/i386-linux-gnu/libresolv.so.2...Reading symbols from /usr/lib/debug/.build-id/82/1cc403106f2e311db5cde616de0823e7a5b623.debug...done.
done.
Reading symbols from /lib/i386-linux-gnu/libdl.so.2...Reading symbols from /usr/lib/debug/.build-id/ba/ed2708d60c4c9cc816de4c67c09453933391ec.debug...done.
done.
Reading symbols from /lib/i386-linux-gnu/libc.so.6...Reading symbols from /usr/lib/debug/.build-id/f4/0165cccc8bba7adde205d7d571d3b76cdd56df.debug...done.
done.
Reading symbols from /lib/ld-linux.so.2...Reading symbols from /usr/lib/debug/.build-id/ff/ec6bbdbd2ea33377b06b19a329d32c65df5e6f.debug...done.
done.
0xb77afcd9 in __kernel_vsyscall ()
Continuing.
Program received signal SIGSEGV, Segmentation fault.
__memcpy_sse2_unaligned () at ../sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S:578
578 ../sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S: No such file or directory.
(gdb) n
abort_bbs () at bbsd.c:166
166 {
(gdb) n
167 if (bbstate)
(gdb) n
168 u_exit("AXXED");
(gdb) n
Program received signal SIGSEGV, Segmentation fault.
0xb75ecf16 in _IO_vfscanf_internal (s=0xbf59e540, format=0xb76fc208 "%hu%n:%hu%n:%hu%n",
argptr=0xbf59e618 "F\346Y\277L\346Y\277H\346Y\277L\346Y\277J\346Y\277L\346Y\277\001\b", errp=0x0) at vfscanf.c:279
279 vfscanf.c: No such file or directory.
(gdb) n
Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.
(gdb) n
The program is not being run.
(gdb)
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment