smbpasswd segmentation fault in Jul2 CVS Code

[Doug VanLeuven]

I think this is the same issue as "SIGBUS Panic in smbd"
in samba-technical.  I've lost the original post
but this will get to the thread.
http://us1.samba.org/listproc/samba-technical/3907.html

Luke Kenneth Casson Leighton wrote:

> ok, it doesn't really answer the question, but does anyone know why
> Get_Pwnam() is calling free() on its arguments?
>
> On Fri, 2 Jul 1999, Matthew Keller wrote:
>
> > Luke Kenneth Casson Leighton wrote:
> > >
> > > ok, sorry: forgot to ask, please recompile with -g -g -g first :-)
> > > Get_Pwnam() is useful to know where crash, args needed though!
> >
> >       :) I should've been in debug anyhow... Dumb me. :) Here UR.
> >
> > [bin]# gdb smbpasswd
> > GNU gdb 4.17.0.4 with Linux/x86 hardware watchpoint and FPU support
> > <snip>
> > This GDB was configured as "i386-redhat-linux"...
> > (gdb) set args -a -m taurus
> > (gdb) run
> > Starting program: /usr/local/samba/bin/smbpasswd -a -m taurus
> > Added interface ip=137.143.107.3 bcast=137.143.111.255
> > nmask=255.255.248.0
> > LSA Query Info Policy
> > Domain Member     - Domain: CASL SID:
> > S-1-5-21-4249405711-4100410612-2548434081
> > Domain Controller - Domain: CASL SID:
> > S-1-5-21-4249405711-4100410612-2548434081
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > chunk_free (ar_ptr=0x400ff420, p=0x80c18f8) at malloc.c:2897
> > malloc.c:2897: No such file or directory.
> > (gdb) where
> > #0  chunk_free (ar_ptr=0x400ff420, p=0x80c18f8) at malloc.c:2897
> > #1  0x400aa7c1 in __libc_free (mem=0x80c1900) at malloc.c:2872
> > #2  0x8095b50 in _Get_Pwnam (s=0x80b9fc0 "taurus$") at
> > lib/username.c:452
> > #3  0x8095bac in Get_Pwnam (user=0x80b9fc0 "taurus$", allow_change=1)
> >     at lib/username.c:555
> > #4  0x804ad5c in process_root (argc=4, argv=0xbffffdb8)
> >     at utils/smbpasswd.c:471
> > #5  0x804b207 in main (argc=4, argv=0xbffffdac) at utils/smbpasswd.c:734
> > (gdb)
> >
> >
> > --
> >
> >           - Matthew Keller -
> >        Lead Programmer/Analyst
> >   Distributed Computing and Telemedia
> > State University of New York at Potsdam
> >
> > Web: http://mattwork.potsdam.edu/
> > PGP: http://mattwork.potsdam.edu/crypto/
> >
>
> <a href="mailto:lkcl at samba.org"   > Luke Kenneth Casson Leighton    </a>
> <a href="http://www.cb1.com/~lkcl"> Samba and Network Development   </a>
> <a href="http://samba.org"        > Samba Web site                  </a>
> <a href="http://www.iss.net"      > Internet Security Systems, Inc. </a>

-- Doug VanLeuven - 707-545-6933 (voice) 707-545-6945 (fax)
Chief Engineer, USMM roamdad at ibm.net
Programmer/Analyst, SCWA doug at scwa.ca.gov