https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=5219
Summary: LUA Memory Leak
Product: Wireshark
Version: 1.4.0
Platform: x86-64
OS/Version: Windows 7
Status: NEW
Severity: Normal
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: laabs@xxxxxx
Build Information:
Version 1.4.0 (SVN Rev 34005 from /trunk-1.4)
Copyright 1998-2010 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Compiled with GTK+ 2.16.6, (64-bit) with GLib 2.22.4, with WinPcap (version
unknown), with libz 1.2.3, without POSIX capabilities, without libpcre, without
SMI, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS 2.8.5, with
Gcrypt 1.4.5, without Kerberos, with GeoIP, with PortAudio V19-devel (built Aug
29 2010), with AirPcap.
Running on 64-bit Windows 7, build 7600, with WinPcap version 4.1.2 (packet.dll
version 4.1.0.2001), based on libpcap version 1.0 branch 1_0_rel0b (20091008),
GnuTLS 2.8.5, Gcrypt 1.4.5, without AirPcap.
Built using Microsoft Visual C++ 9.0 build 30729
--
When using a LUA Dissector Wireshark leaks memory for each packet and each call
to tvb:range([offset], [length]) independent of offset and length.
Calling the garbage collection from within LUA does not help.
The same amount of memory is leaked every time a new display filter is applied.
Mimimized dissector code (leaks about 4kB per packet):
-- udt memory leak dissector
memleak = Proto("memleak", "memleak", "memleak")
function memleak.dissector(buf, pinfo, tree)
for i = 0, 100, 1 do
buf(0, 1)
end
end
udp_table:add (0, memleak)
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