realloc(): invalid next size

Attempting to process a graphviz *.dot file with a directed graph of 168 nodes and 186 edges.

$ dot missions.dot
** glibc detected *** dot: realloc(): invalid next size: 0x0920e4a8 ***
======= Backtrace: =========
/lib/i386-linux-gnu/libc.so.6(+0x6ebc2)[0xb753abc2]
/lib/i386-linux-gnu/libc.so.6(+0x715cf)[0xb753d5cf]
/lib/i386-linux-gnu/libc.so.6(realloc+0xf7)[0xb753eab7]
/usr/lib/libgvc.so.5(zrealloc+0x3b)[0xb7676c7b]
/usr/lib/libgvc.so.5(+0x2f02c)[0xb768602c]
/usr/lib/libgvc.so.5(make_simple_label+0x12c)[0xb768622c]
/usr/lib/libgvc.so.5(make_label+0x101)[0xb7686e11]
/usr/lib/libgvc.so.5(common_init_node_opt+0x16e)[0xb769189e]
/usr/lib/libgvc.so.5(common_init_node+0x23)[0xb7691983]
/usr/lib/graphviz/libgvplugin_dot_layout.so.6(dot_init_node_edge+0x38)[0xb6e2b758]
/usr/lib/graphviz/libgvplugin_dot_layout.so.6(dot_layout+0x100)[0xb6e2be50]
/usr/lib/libgvc.so.5(gvLayoutJobs+0x9d)[0xb766780d]
dot[0x8048b26]
/lib/i386-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0xb74e5113]
dot[0x8048c0d]

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: graphviz 2.26.3-5ubuntu4
ProcVersionSignature: Ubuntu 3.0.0-16.28-generic-pae 3.0.17
Uname: Linux 3.0.0-16-generic-pae i686
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu4
Architecture: i386
Date: Fri Feb 17 18:26:58 2012
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: graphviz
UpgradeStatus: Upgraded to oneiric on 2011-10-14 (126 days ago)