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http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1416





------- Comment #7 from thomas.anders@xxxxxxxxxxxxx  2007-05-25 21:19 GMT -------
My glibc version is 2.5 (glibc-2.5-25 from openSUSE 10.2).

Interestingly enough, I can *not* reproduce the crash with "tshark -o
frame.force_docsis_encap:TRUE-n -x -V -r file.pcap", but only with "wireshark
-o frame.force_docsis_encap:TRUE -r file.pcap". FWIW, the crash also happens if
I completely remove my ~/.wireshark dir before starting it, i.e. it also
happens with default preferences.

Here's the reqeuested gdb session:

- --- snip ---
(gdb) r -o frame.force_docsis_encap:TRUE -r fuzz_bug_20070305a_1416_dhcp.pcap
Starting program: /bc/bin/wireshark -o frame.force_docsis_encap:TRUE -r
fuzz_bug_20070305a_1416_dhcp.pcap
Failed to read a valid object file image from memory.
Error in re-setting breakpoint 2:
No source file named packet-bootp.c.
Error in re-setting breakpoint 2:
No source file named packet-bootp.c.
Breakpoint 2 at 0xb6e54e72: file packet-bootp.c, line 1467.
[Thread debugging using libthread_db enabled]
[New Thread -1245616448 (LWP 12240)]
[Switching to Thread -1245616448 (LWP 12240)]

Breakpoint 2, bootp_option (tvb=0x88e9918, bp_tree=0x0, voff=240, eoff=485,
    first_pass=1, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
1470    }
(gdb) print consumed
$1 = 3
(gdb) c
Continuing.

Breakpoint 2, bootp_option (tvb=0x88e9918, bp_tree=0x0, voff=243, eoff=485,
    first_pass=1, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
1470    }
(gdb) print consumed
$2 = 11
(gdb) c
Continuing.

Breakpoint 2, bootp_option (tvb=0x88e9918, bp_tree=0x0, voff=254, eoff=485,
    first_pass=1, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
1470    }
(gdb) print consumed
$3 = 122
(gdb) c
Continuing.

Breakpoint 2, bootp_option (tvb=0x88e9918, bp_tree=0x0, voff=376, eoff=485,
    first_pass=1, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
1470    }
(gdb) print consumed
$4 = 95
(gdb) c
Continuing.

Breakpoint 2, bootp_option (tvb=0x88e9918, bp_tree=0x0, voff=471, eoff=485,
    first_pass=1, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
1470    }
(gdb) print consumed
$5 = 9
(gdb) c
Continuing.

Breakpoint 2, bootp_option (tvb=0x88e9918, bp_tree=0x0, voff=480, eoff=485,
    first_pass=1, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
1470    }
(gdb) print consumed
$6 = 4
(gdb) c
Continuing.

Breakpoint 2, bootp_option (tvb=0x88e9918, bp_tree=0x0, voff=484, eoff=485,
    first_pass=1, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
1470    }
(gdb) print consumed
$7 = 1
(gdb) c
Continuing.

Breakpoint 2, bootp_option (tvb=0x88e9918, bp_tree=0x8a6e890, voff=240,
    eoff=485, first_pass=0, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
1470    }
(gdb) print consumed
$8 = 3
(gdb) c
Continuing.

Breakpoint 2, bootp_option (tvb=0x88e9918, bp_tree=0x8a6e890, voff=243,
    eoff=485, first_pass=0, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
1470    }
(gdb) print consumed
$9 = 11
(gdb) c
Continuing.

Breakpoint 2, bootp_option (tvb=0x88e9918, bp_tree=0x8a6e890, voff=254,
    eoff=485, first_pass=0, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
1470    }
(gdb) print consumed
$10 = 122
(gdb) c
Continuing.
*** stack smashing detected ***: /bc/bin/wireshark terminated

Program received signal SIGABRT, Aborted.
0xb7f3c410 in ?? ()
(gdb) print consumed
No symbol "consumed" in current context.
(gdb) bt
#0  0xb7f3c410 in ?? ()
#1  0xbf8f8f44 in ?? ()
#2  0x00000006 in ?? ()
#3  0x00002fd0 in ?? ()
#4  0xb5d43060 in raise () from /lib/libc.so.6
#5  0xb5d44801 in abort () from /lib/libc.so.6
#6  0xb5d78abb in __libc_message () from /lib/libc.so.6
#7  0xb5decd11 in __stack_chk_fail () from /lib/libc.so.6
#8  0xb758f3c4 in __stack_chk_fail_local ()
   from /bc/wireshark-svn/lib/libwireshark.so.0
#9  0xb6e56745 in bootp_option (tvb=0x88e9918, bp_tree=0x8a6e890, voff=254,
    eoff=485, first_pass=0, at_end=0xbf8f9864, dhcp_type_p=0xbf8f9860,
    vendor_class_id_p=0xbf8f985c) at packet-bootp.c:1470
#10 0xb6e59b91 in dissect_bootp (tvb=0x88e9918, pinfo=0x8a6df30,
    tree=0x8a6e980) at packet-bootp.c:3243
#11 0xb6d5d106 in call_dissector_through_handle (handle=0x8696af0,
    tvb=0x88e9918, pinfo=0x8a6df30, tree=0x8a6e980) at packet.c:393
#12 0xb6d5d465 in call_dissector_work (handle=0x8696af0, tvb=0x88e9918,
    pinfo_arg=<value optimized out>, tree=0x8a6e980) at packet.c:571
#13 0xb6d5df4a in dissector_try_port (sub_dissectors=0x862b000, port=67,
    tvb=0x88e9918, pinfo=0x8a6df30, tree=0x8a6e980) at packet.c:847
#14 0xb723f79a in decode_udp_ports (tvb=0x88e9838, offset=8, pinfo=0x8a6df30,
    tree=0x8a6e980, uh_sport=68, uh_dport=67, uh_ulen=493) at packet-udp.c:152
#15 0xb723fdd8 in dissect (tvb=0x88e9838, pinfo=0x8a6df30, tree=0x8a6e980,
    ip_proto=1114112) at packet-udp.c:415
#16 0xb6d5d106 in call_dissector_through_handle (handle=0x8729558,
    tvb=0x88e9838, pinfo=0x8a6df30, tree=0x8a6e980) at packet.c:393
#17 0xb6d5d465 in call_dissector_work (handle=0x8729558, tvb=0x88e9838,
    pinfo_arg=<value optimized out>, tree=0x8a6e980) at packet.c:571
#18 0xb6d5df4a in dissector_try_port (sub_dissectors=0x83f5be8, port=17,
    tvb=0x88e9838, pinfo=0x8a6df30, tree=0x8a6e980) at packet.c:847
#19 0xb6ffe207 in dissect_ip (tvb=0x88e9870, pinfo=0x8a6df30,
    parent_tree=0x8a6e980) at packet-ip.c:1463
#20 0xb6d5d106 in call_dissector_through_handle (handle=0x83f91e8,
    tvb=0x88e9870, pinfo=0x8a6df30, tree=0x8a6e980) at packet.c:393
#21 0xb6d5d465 in call_dissector_work (handle=0x83f91e8, tvb=0x88e9870,
    pinfo_arg=<value optimized out>, tree=0x8a6e980) at packet.c:571
#22 0xb6d5df4a in dissector_try_port (sub_dissectors=0x8394100, port=2048,
    tvb=0x88e9870, pinfo=0x8a6df30, tree=0x8a6e980) at packet.c:847
#23 0xb6f45759 in ethertype (etype=2048, tvb=0x88e98a8, offset_after_etype=14,
    pinfo=0x8a6df30, tree=0x8a6e980, fh_tree=0x8a6e920, etype_id=11411,
    trailer_id=11413, fcs_len=0) at packet-ethertype.c:201
#24 0xb6f420f8 in dissect_eth_common (tvb=0x88e98a8, pinfo=0x8a6df30,
    parent_tree=0x8a6e980, fcs_len=0) at packet-eth.c:344
#25 0xb6d5d106 in call_dissector_through_handle (handle=0x83915e8,
    tvb=0x88e98a8, pinfo=0x8a6df30, tree=0x8a6e980) at packet.c:393
#26 0xb6d5d465 in call_dissector_work (handle=0x83915e8, tvb=0x88e98a8,
---Type <return> to continue, or q <return> to quit---
    pinfo_arg=<value optimized out>, tree=0x8a6e980) at packet.c:571
#27 0xb6d5dab6 in call_dissector (handle=0x0, tvb=0x88e98a8, pinfo=0x8a6df30,
    tree=0x8a6e980) at packet.c:1716
#28 0xb57197e1 in dissect_docsis (tvb=0x88e98e0, pinfo=0x8a6df30,
    tree=0x8a6e980) at packet-docsis.c:505
#29 0xb6d5d106 in call_dissector_through_handle (handle=0x8678310,
    tvb=0x88e98e0, pinfo=0x8a6df30, tree=0x8a6e980) at packet.c:393
#30 0xb6d5d465 in call_dissector_work (handle=0x8678310, tvb=0x88e98e0,
    pinfo_arg=<value optimized out>, tree=0x8a6e980) at packet.c:571
#31 0xb6d5dab6 in call_dissector (handle=0x0, tvb=0x88e98e0, pinfo=0x8a6df30,
    tree=0x8a6e980) at packet.c:1716
#32 0xb6f762db in dissect_frame (tvb=0x88e98e0, pinfo=0x8a6df30,
    parent_tree=0x8a6e980) at packet-frame.c:298
#33 0xb6d5d106 in call_dissector_through_handle (handle=0x83a6670,
    tvb=0x88e98e0, pinfo=0x8a6df30, tree=0x8a6e980) at packet.c:393
#34 0xb6d5d465 in call_dissector_work (handle=0x83a6670, tvb=0x88e98e0,
    pinfo_arg=<value optimized out>, tree=0x8a6e980) at packet.c:571
#35 0xb6d5dab6 in call_dissector (handle=0x0, tvb=0x88e98e0, pinfo=0x8a6df30,
    tree=0x8a6e980) at packet.c:1716
#36 0xb6d5fb30 in dissect_packet (edt=0x8a6df28, pseudo_header=0x8a171f4,
    pd=0x8a4f650 "\001\004\002\027\023", fd=0x81da418, cinfo=0x81b7bfc)
    at packet.c:329
#37 0xb6d56643 in epan_dissect_run (edt=0x8a6df28, pseudo_header=0x8a171f4,
    data=0x8a4f650 "\001\004\002\027\023", fd=0x81da418, cinfo=0x81b7bfc)
    at epan.c:200
#38 0x0807147d in add_packet_to_packet_list (fdata=0x81da418, cf=0x81a7ae0,
    dfcode=0x0, pseudo_header=0x8a171f4, buf=0x8a4f650 "\001\004\002\027\023",
    refilter=1) at file.c:956
#39 0x08072a15 in read_packet (cf=0x81a7ae0, dfcode=0x0, offset=577)
    at file.c:1089
#40 0x08073409 in cf_read (cf=0x81a7ae0) at file.c:494
#41 0x08088d74 in main (argc=0, argv=0xbf8fbac8) at main.c:2971
(gdb)
- --- snap ---


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