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Message #00943
[Question #228952]: I can reliably crash iprohc client
New question #228952 on rohc:
https://answers.launchpad.net/rohc/+question/228952
My test case.
1. Start up rohc server and client communicating via private ip tunnel using ip addresses 10.0.0.1 -> 10.0.0.11
2. Send a large amount of data client -> server.
3. Client core dumps.
Now I can do all manner of other things successfully, for instance I can ssh from client to server and have no problem. Here is the text from the client. Note: nothing of interest shows up in /var/log/messages when the crash occurs.
The command I use on the server side in this particular test was "scp rohcuser@10.0.0.11:/home/rohcuser/test.tar.bz2"
*** glibc detected *** /home/rohcuser/workspace/iprohc/client/iprohc_client: double free or corruption (out): 0x00007f27e402b180 ***
======= Backtrace: =========
/lib64/libc.so.6[0x345e8760e6]
/lib64/libc.so.6[0x345e878c13]
/home/rohcuser/workspace/iprohc/common/libiprohc_common.so(tun2raw+0x40a)[0x7f27eb6cb370]
/home/rohcuser/workspace/iprohc/common/libiprohc_common.so(new_tunnel+0x5a5)[0x7f27eb6cab7b]
/lib64/libpthread.so.0[0x3dc4407851]
/lib64/libc.so.6(clone+0x6d)[0x345e8e890d]
======= Memory map: ========
00400000-00406000 r-xp 00000000 08:03 1726032 /home/rohcuser/workspace/iprohc/client/iprohc_client
00605000-00606000 rw-p 00005000 08:03 1726032 /home/rohcuser/workspace/iprohc/client/iprohc_client
012ce000-0130f000 rw-p 00000000 00:00 0 [heap]
3032c00000-3032c30000 r-xp 00000000 08:03 1472141 /usr/lib64/librohc_comp.so.0.1.0
3032c30000-3032e30000 ---p 00030000 08:03 1472141 /usr/lib64/librohc_comp.so.0.1.0
3032e30000-3032e31000 rw-p 00030000 08:03 1472141 /usr/lib64/librohc_comp.so.0.1.0
3033000000-303300a000 r-xp 00000000 08:03 1471908 /usr/lib64/librohc_common.so.0.1.0
303300a000-303320a000 ---p 0000a000 08:03 1471908 /usr/lib64/librohc_common.so.0.1.0
303320a000-303320b000 rw-p 0000a000 08:03 1471908 /usr/lib64/librohc_common.so.0.1.0
3033400000-3033430000 r-xp 00000000 08:03 1484267 /usr/lib64/librohc_decomp.so.0.1.0
3033430000-3033630000 ---p 00030000 08:03 1484267 /usr/lib64/librohc_decomp.so.0.1.0
3033630000-3033631000 rw-p 00030000 08:03 1484267 /usr/lib64/librohc_decomp.so.0.1.0
345e000000-345e020000 r-xp 00000000 08:03 916117 /lib64/ld-2.12.so
345e21f000-345e220000 r--p 0001f000 08:03 916117 /lib64/ld-2.12.so
345e220000-345e221000 rw-p 00020000 08:03 916117 /lib64/ld-2.12.so
345e221000-345e222000 rw-p 00000000 00:00 0
345e400000-345e402000 r-xp 00000000 08:03 916126 /lib64/libdl-2.12.so
345e402000-345e602000 ---p 00002000 08:03 916126 /lib64/libdl-2.12.so
345e602000-345e603000 r--p 00002000 08:03 916126 /lib64/libdl-2.12.so
345e603000-345e604000 rw-p 00003000 08:03 916126 /lib64/libdl-2.12.so
345e800000-345e98a000 r-xp 00000000 08:03 916118 /lib64/libc-2.12.so
345e98a000-345eb89000 ---p 0018a000 08:03 916118 /lib64/libc-2.12.so
345eb89000-345eb8d000 r--p 00189000 08:03 916118 /lib64/libc-2.12.so
345eb8d000-345eb8e000 rw-p 0018d000 08:03 916118 /lib64/libc-2.12.so
345eb8e000-345eb93000 rw-p 00000000 00:00 0
345fc00000-345fc15000 r-xp 00000000 08:03 916125 /lib64/libz.so.1.2.3
345fc15000-345fe14000 ---p 00015000 08:03 916125 /lib64/libz.so.1.2.3
345fe14000-345fe15000 r--p 00014000 08:03 916125 /lib64/libz.so.1.2.3
345fe15000-345fe16000 rw-p 00015000 08:03 916125 /lib64/libz.so.1.2.3
346ac00000-346ac16000 r-xp 00000000 08:03 916140 /lib64/libgcc_s-4.4.7-20120601.so.1
346ac16000-346ae15000 ---p 00016000 08:03 916140 /lib64/libgcc_s-4.4.7-20120601.so.1
346ae15000-346ae16000 rw-p 00015000 08:03 916140 /lib64/libgcc_s-4.4.7-20120601.so.1
346dc00000-346dc03000 r-xp 00000000 08:03 916141 /lib64/libgpg-error.so.0.5.0
346dc03000-346de02000 ---p 00003000 08:03 916141 /lib64/libgpg-error.so.0.5.0
346de02000-346de03000 r--p 00002000 08:03 916141 /lib64/libgpg-error.so.0.5.0
346de03000-346de04000 rw-p 00003000 08:03 916141 /lib64/libgpg-error.so.0.5.0
3470800000-3470872000 r-xp 00000000 08:03 916142 /lib64/libgcrypt.so.11.5.3
3470872000-3470a71000 ---p 00072000 08:03 916142 /lib64/libgcrypt.so.11.5.3
3470a71000-3470a72000 r--p 00071000 08:03 916142 /lib64/libgcrypt.so.11.5.3
3470a72000-3470a75000 rw-p 00072000 08:03 916142 /lib64/libgcrypt.so.11.5.3
3472000000-3472010000 r-xp 00000000 08:03 1441128 /usr/lib64/libtasn1.so.3.1.6
3472010000-347220f000 ---p 00010000 08:03 1441128 /usr/lib64/libtasn1.so.3.1.6
347220f000-3472210000 rw-p 0000f000 08:03 1441128 /usr/lib64/libtasn1.so.3.1.6
3bb3a00000-3bb3a9c000 r-xp 00000000 08:03 1441114 /usr/lib64/libgnutls.so.26.14.12
3bb3a9c000-3bb3c9c000 ---p 0009c000 08:03 1441114 /usr/lib64/libgnutls.so.26.14.12
3bb3c9c000-3bb3ca3000 rw-p 0009c000 08:03 1441114 /usr/lib64/libgnutls.so.26.14.12
3dc4400000-3dc4417000 r-xp 00000000 08:03 923980 /lib64/libpthread-2.12.so
3dc4417000-3dc4617000 ---p 00017000 08:03 923980 /lib64/libpthread-2.12.so
3dc4617000-3dc4618000 r--p 00017000 08:03 923980 /lib64/libpthread-2.12.so
3dc4618000-3dc4619000 rw-p 00018000 08:03 923980 /lib64/libpthread-2.12.so
3dc4619000-3dc461d000 rw-p 00000000 00:00 0
7f27e4000000-7f27e4037000 rw-p 00000000 00:00 0
7f27e4037000-7f27e8000000 ---p 00000000 00:00 0
7f27eacb0000-7f27eacb1000 ---p 00000000 00:00 0
7f27eacb1000-7f27eb6b8000 rw-p 00000000 00:00 0
7f27eb6c6000-7f27eb6c8000 rw-p 00000000 00:00 0
7f27eb6c8000-7f27eb6d1000 r-xp 00000000 08:03 1725987 /home/rohcuser/workspace/iprohc/common/libiprohc_common.so
7f27eb6d1000-7f27eb8d0000 ---p 00009000 08:03 1725987 /home/rohcuser/workspace/iprohc/common/libiprohc_common.so
7f27eb8d0000-7f27eb8d1000 rw-p 00008000 08:03 1725987 /home/rohcuser/workspace/iprohc/common/libiprohc_common.so
7f27eb8d1000-7f27eb8d2000 rw-p 00000000 00:00 0
7fffd3daf000-7fffd3dc4000 rw-p 00000000 00:00 0 [stack]
7fffd3dff000-7fffd3e00000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
./RunClient: line 1: 10245 Aborted (core dumped) /home/rohcuser/workspace/iprohc/client/iprohc_client --remote $1 --port 3126 --dev rohcclient --debug --p12 /home/rohcuser/certificate/ia.p12
p.s. in the logs for the client and the server I get this message a lot:
"localhost rsyslogd-2177: imuxsock lost 708 messages from pid 6429 due to rate-limiting"
pid 6429 is the process id of my iprohc-server.
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