Segmentation fault of yanglint validation with examples

[classcwnd]

> add ietf-netconf-acm.yin
> data data-malformed-xml.xml
libyang[0]: Parser fails around the line 12.
libyang[0]: Mixed opening (nam) and closing (rule) element tags.

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7dc3fd6 in lyd_validate (node=0x0, options=0)
    at /project/swbuild82/eyyuppg/libnetconf/integration/new4/netopeer/libyang/src/tree_data.c:700
700         for (i = 0; i < ctx->models.used; i++) {
Missing separate debuginfos, use: debuginfo-install pcre-7.8-6.el6.x86_64
(gdb) bt
#0  0x00007ffff7dc3fd6 in lyd_validate (node=0x0, options=0)
    at /project/swbuild82/eyyuppg/libnetconf/integration/new4/netopeer/libyang/src/tree_data.c:700
#1  0x00007ffff7db7a19 in lyd_parse_xml (ctx=0x60a010, root=0x7fffffffd8e0, options=0)
    at /project/swbuild82/eyyuppg/libnetconf/integration/new4/netopeer/libyang/src/parser_xml.c:439
#2  0x00007ffff7dc26e2 in lyd_parse_ (ctx=0x60a010, parent=0x0, 
    data=0x7ffff7d88000 "<data xmlns=\"urn:ietf:params:xml:ns:netconf:base:1.0\">\n<nacm xmlns=\"urn:ietf:params:xml:ns:yang:ietf-netconf-acm\" xmlns:nc=\"urn:ietf:params:xml:ns:netconf:base:1.0\">\n    <rule-list>\n      <name>almigh"..., format=LYD_XML, options=0)
    at /project/swbuild82/eyyuppg/libnetconf/integration/new4/netopeer/libyang/src/tree_data.c:68
#3  0x00007ffff7dc28ad in lyd_parse_data_ (ctx=0x60a010, 
    data=0x7ffff7d88000 "<data xmlns=\"urn:ietf:params:xml:ns:netconf:base:1.0\">\n<nacm xmlns=\"urn:ietf:params:xml:ns:yang:ietf-netconf-acm\" xmlns:nc=\"urn:ietf:params:xml:ns:netconf:base:1.0\">\n    <rule-list>\n      <name>almigh"..., format=LYD_XML, options=0, 
    ap=0x7fffffffd990) at /project/swbuild82/eyyuppg/libnetconf/integration/new4/netopeer/libyang/src/tree_data.c:106
#4  0x00007ffff7dc2b89 in lyd_parse_fd (ctx=0x60a010, fd=3, format=LYD_XML, options=0)
    at /project/swbuild82/eyyuppg/libnetconf/integration/new4/netopeer/libyang/src/tree_data.c:147
#5  0x00007ffff7dc2d44 in lyd_parse_path (ctx=0x60a010, path=0x610475 "data-malformed-xml.xml", format=LYD_XML, options=0)
    at /project/swbuild82/eyyuppg/libnetconf/integration/new4/netopeer/libyang/src/tree_data.c:174
#6  0x0000000000403242 in cmd_data (arg=0x610d80 "data data-malformed-xml.xml")
    at /project/swbuild82/eyyuppg/libnetconf/integration/new4/netopeer/libyang/tools/lint/commands.c:470
#7  0x0000000000402104 in main () at /project/swbuild82/eyyuppg/libnetconf/integration/new4/netopeer/libyang/tools/lint/main.c:91
(gdb)