Comment 2 for bug 1561533

I will take a look.

> On 25 Mar 2016, at 12:27 AM, Sam Hartman <email address hidden> wrote:
>
> Luke, it may be that one of your Heimdal commits broke MIT. I will try
> to get to this before leaving Painless next week, else someone on our
> side will look into this.
>
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> https://bugs.launchpad.net/bugs/1561533
>
> Title:
> crash after authentication on centos7 with master
>
> Status in Project Moonshot:
> Confirmed
>
> Bug description:
> According to Stefan and Alex, if built with a1264ef then you get a coredump on centos7. Interestingly, the stack trace doesn't
> include any of our code, but instead fails in the krb5 library. However, with 28dcddb things work fine.
> I have not tested this yet; it may well be generic with MIT krb5 and not Centos-specific.
> From Stefan:
>
> Starting program: /usr/sbin/gss-server host@localhost
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib64/libthread_db.so.1".
> starting...
> 2016-03-24 11:29:03 CRIT XMLTooling.Config : libcurl lacks OpenSSL-specific options, this will greatly limit functionality
> [New Thread 0x7fffe7896700 (LWP 52402)]
> [New Thread 0x7fffe7095700 (LWP 52403)]
> [New Thread 0x7fffe6894700 (LWP 52404)]
> context flag: GSS_C_MUTUAL_FLAG
> context flag: GSS_C_REPLAY_FLAG
> context flag: GSS_C_SEQUENCE_FLAG
> context flag: GSS_C_CONF_FLAG
> context flag: GSS_C_INTEG_FLAG
> Attribute urn:ietf:params:gss:radius-attribute 79 Authenticated Complete
>
>
> 03070004
>
> Attribute urn:ietf:params:gss:radius-attribute 80 Authenticated
> Complete
>
>
> 5de105afdca56834f6fd86330e95ffd0
>
> Accepted connection: ""
> Received message: "boo"
>
> Program received signal SIGSEGV, Segmentation fault.
> kg_seal_iov (minor_status=0x7fffffffdef8, context_handle=0x0, conf_req_flag=0,
> qop_req=0, conf_state=0x0, iov=0x7fffffffdd90, iov_count=2, toktype=257)
> at k5sealiov.c:284
> 284 if (ctx->terminated || !ctx->established) {
> (gdb) bt full
> #0 kg_seal_iov (minor_status=0x7fffffffdef8, context_handle=0x0,
> conf_req_flag=0, qop_req=0, conf_state=0x0, iov=0x7fffffffdd90,
> iov_count=2, toktype=257) at k5sealiov.c:284
> ctx = <optimized out>
> #1 0x00007ffff7bbd24f in krb5_gss_get_mic_iov (minor_status=<optimized out>,
> context_handle=<optimized out>, qop_req=<optimized out>,
> iov=<optimized out>, iov_count=<optimized out>) at k5sealiov.c:537
> major_status = <optimized out>
> #2 0x00007ffff571be48 in gss_get_mic (minor=<optimized out>,
> ctx=<optimized out>, qop_req=<optimized out>,
> message_buffer=<optimized out>, message_token=0x7fffffffdf50)
> at get_mic.c:104
> major = <optimized out>
> iov = {{type = 1, buffer = {length = 3, value = 0x5555557a8720}}, {
> type = 65548, buffer = {length = 0, value = 0x0}}}
> #3 0x00007ffff7bacce4 in gss_get_mic (
> minor_status=minor_status@entry=0x7fffffffdef8,
> context_handle=0x55555575a080, qop_req=qop_req@entry=0,
> message_buffer=message_buffer@entry=0x7fffffffdf40,
> msg_token=msg_token@entry=0x7fffffffdf50) at g_sign.c:101
> status = 0
> ctx = 0x55555575a080
> mech = 0x5555557a1ff0
> #4 0x000055555555662a in sign_server (s=s@entry=8,
> server_creds=<optimized out>, export=export@entry=0) at gss-server.c:519
> client_name = {length = 0, value = 0x5555557acbc0}
> recv_buf = {length = 63, value = 0x0}
> unwrap_buf = {length = 3, value = 0x5555557a8720}
> mic_buf = {length = 0, value = 0x0}
> msg_buf = 0x7fffffffdf40
> send_buf = <optimized out>
> context = 0x55555575a080
> maj_stat = <optimized out>
> min_stat = 0
> i = <optimized out>
> conf_state = 1
> ret_flags = 382
> cp = <optimized out>
> token_flags = 228
> send_flags = <optimized out>
> #5 0x0000555555555bea in worker_bee (param=0x55555575a060) at gss-server.c:640
> work = 0x55555575a060
> #6 main (argc=<optimized out>, argv=<optimized out>) at gss-server.c:779
> work = 0x55555575a060
> service_name = <optimized out>
> server_creds = 0x55555575c460
> min_stat = 1
> port = <optimized out>
> once = 0
> do_inetd = 0
> export = 0
> (gdb)
> -- ends --
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