[Pkg-samba-maint] Bug#404266: smbclient: nmbclient segfaults when
asked to lookup a name through avahi
michael at susens-schurter.com
Fri Dec 29 04:38:35 UTC 2006
Steve Langasek wrote:
> On Fri, Dec 22, 2006 at 07:05:17PM -0500, Norman Ramsey wrote:
>> Package: smbclient
>> Version: 3.0.23d-2+b1
>> Severity: important
>> The following command causes a segfault:
>> smbclient -L bloodhound.local -N
>> The machine 'bloodhound.local' is a Windows XP machine running Apple's
>> 'Bonjour for Windows'. As you can see below, other apps can find it:
>> : nr at curlycoat 10308 ; avahi-resolve -4 -n bloodhound.local
>> bloodhound.local 192.168.2.33
>> I've attached an strace output from the segfaulting run and also my smb.conf.
> Please provide a backtrace using gdb instead of this strace.
> It happens that I'm able to reproduce such a failure here:
> (gdb) bt
> #0 0x080d364d in timeval_add ()
> #1 0xb7fd181b in mdns_query_name () from /usr/lib/libnss_mdns4_minimal.so.2
> #2 0xb7fd00d0 in _nss_mdns4_minimal_gethostbyname2_r () from /usr/lib/libnss_mdns4_minimal.so.2
> #3 0xb7fd02a6 in _nss_mdns4_minimal_gethostbyname_r () from /usr/lib/libnss_mdns4_minimal.so.2
> #4 0xb7d9d48b in gethostbyname_r@@GLIBC_2.1.2 () from /lib/tls/libc.so.6
> #5 0xb7d9cdde in gethostbyname () from /lib/tls/libc.so.6
> #6 0x080c96d3 in internal_resolve_name ()
> #7 0x080ca218 in resolve_name ()
> #8 0x08098a59 in cli_connect ()
> #9 0x080ad596 in cli_cm_shutdown ()
> #10 0x080adb7f in cli_cm_open ()
> #11 0x080686e0 in main ()
> that looks like a bug in nss_mdns, not in smbclient...
You are correct. I posted about this here:
Moral of the story: its been submitted as an upstream bug to Avahi.
Hope that helps.
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