atftp crashed with SIGSEGV in __strcasecmp()

[Carl Karsten]

Binary package hint: atftp

It only happens when stdin has been redirected, and when it needs to prompt.

(veyepar)juser@dhcp42:~$ echo "get pxelinux.cfg/default" | atftp shaz
tftp> get pxelinux.cfg/default
Overwite local file [y/n]? Segmentation fault (core dumped)
(veyepar)juser@dhcp42:~$ atftp shaz <<< "get pxelinux.cfg/default"
tftp> get pxelinux.cfg/default
Overwite local file [y/n]? Segmentation fault (core dumped)
(veyepar)juser@dhcp42:~$ atftp shaz
tftp> get pxelinux.cfg/default
Overwite local file [y/n]? y
tftp>
(veyepar)juser@dhcp42:~$ rm default
(veyepar)juser@dhcp42:~$ atftp shaz <<< "get pxelinux.cfg/default"
tftp> get pxelinux.cfg/default
tftp>
(veyepar)juser@dhcp42:~$ atftp shaz <<< "get pxelinux.cfg/default"
tftp> get pxelinux.cfg/default
Overwite local file [y/n]? Segmentation fault (core dumped)
(veyepar)juser@dhcp42:~$

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: atftp 0.7.dfsg-9.2
ProcVersionSignature: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
Uname: Linux 2.6.37-7-generic i686
Architecture: i386
CrashCounter: 1
Date: Mon Dec 6 20:36:46 2010
ExecutablePath: /usr/bin/atftp
ProcCmdline: atftp shaZ
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=en_US
SegvAnalysis:
 Segfault happened at: 0x8d9d2b <__strcasecmp+59>: movzbl (%esi,%edx,1),%edi
 PC (0x008d9d2b) ok
 source "(%esi,%edx,1)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%edi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: atftp
StacktraceTop:
 __strcasecmp (s1=0x0, s2=0x8050a24 "y") at strcasecmp.c:65
 ?? ()
 ?? ()
 ?? ()
 __libc_start_main (main=0x804b730, argc=2, ubp_av=0xbfde6204, init=0x8050680, fini=0x8050670, rtld_fini=0xbf3ac0 <_dl_fini>, stack_end=0xbfde61fc) at libc-start.c:226
Title: atftp crashed with SIGSEGV in __strcasecmp()
UserGroups: adm admin audio cdrom dialout lpadmin plugdev video

[Apport retracing service (apport)]

Stacktrace:
 #0 0x008d9d2b in __strpbrk_ia32 () from /lib/libc.so.6
 No symbol table info available.
 #1 0x08048bec in ?? ()
 No symbol table info available.
 Backtrace stopped: previous frame inner to this frame (corrupt stack?)
StacktraceTop:
 __strpbrk_ia32 () from /lib/libc.so.6
 ?? ()

[Apport retracing service (apport)]

Thank you for your report!

However, processing it in order to get sufficient information for the
developers failed (it does not generate an useful symbolic stack trace). This
might be caused by some outdated packages which were installed on your system
at the time of the report:

libc6-dbg: installed version 2.12.1-0ubuntu9, latest version: 2.12.1-0ubuntu10
libc-bin: installed version 2.12.1-0ubuntu9, latest version: 2.12.1-0ubuntu10
libc6: installed version 2.12.1-0ubuntu9, latest version: 2.12.1-0ubuntu10

Please upgrade your system to the latest package versions. If you still
encounter the crash, please file a new report.

Thank you for your understanding, and sorry for the inconvenience!

[Paul Hewlett (phewlett76)]

I get the same result on 64bit ubuntu 16.04 when following this link:

https://help.ubuntu.com/community/Installation/QuickNetboot

Please advise how to fix...