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(Copied from https://bodhi.fedoraproject.org/updates/FEDORA-2018-908399dcfc:)
$ openssl req -newkey rsa:2048 -nodes -keyout dnsdist.key -x509 -days 365 -out dnsdist.pem $ openssl rsa -pubout -outform der -in dnsdist.key | openssl dgst -binary -sha256 | openssl base64 # for use in eg stubby $ cat /etc/dnsdist/dnsdist.conf addLocal("127.0.99.1") addTLSLocal('127.0.99.1', '/etc/dnsdist/dnsdist.pem', '/etc/dnsdist/dnsdist.key') newServer({address='8.8.8.8:53'}) $ $ cat /etc/stubby/stubby.yml resolution_type: GETDNS_RESOLUTION_STUB dns_transport_list: - GETDNS_TRANSPORT_TLS tls_authentication: GETDNS_AUTHENTICATION_REQUIRED tls_query_padding_blocksize: 128 edns_client_subnet_private: 1 round_robin_upstreams: 1 idle_timeout: 10000 listen_addresses: - 127.0.0.1 - 0::1 upstream_recursive_servers: - address_data: 127.0.99.1 tls_auth_name: "CN-entered-when-generating-cert" tls_pubkey_pinset: - digest: "sha256" value: base64-value-from-second-openssl-cmd
dig @127.0.0.1 example.com
dig returning a response
dnsdist crashes with sigabrt:
> Got TCP connection from 127.0.0.1:51450 /usr/include/c++/8/bits/stl_vector.h:932: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = char; _Alloc = std::allocator<char>; std::vector<_Tp, _Alloc>::reference = char&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]: Assertion '__builtin_expect(__n < this->size(), true)' failed. Thread 8 "dnsdist" received signal SIGABRT, Aborted. [Switching to Thread 0x7ffff0e95700 (LWP 21625)] 0x00007ffff5964f2b in raise () from /lib64/libc.so.6 Missing separate debuginfos, use: dnf debuginfo-install libblkid-2.32-2.fc28.x86_64 libcap-2.25-9.fc28.x86_64 libedit-3.1-23.20170329cvs.fc28.x86_64 libgcc-8.1.1-1.fc28.x86_64 libgcrypt-1.8.2-2.fc28.x86_64 libgpg-error-1.29-1.fc28.x86_64 libmount-2.32-2.fc28.x86_64 libselinux-2.7-13.fc28.x86_64 libsodium-1.0.16-4.fc28.x86_64 libstdc++-8.1.1-1.fc28.x86_64 libuuid-2.32-2.fc28.x86_64 luajit-2.1.0-0.7beta3.fc28.x86_64 lz4-libs-1.8.1.2-4.fc28.x86_64 ncurses-libs-6.1-5.20180224.fc28.x86_64 openssl-libs-1.1.0h-3.fc28.x86_64 pcre2-10.31-4.fc28.x86_64 protobuf-3.5.0-4.fc28.x86_64 sssd-client-1.16.1-9.fc28.x86_64 systemd-libs-238-8.git0e0aa59.fc28.x86_64 xz-libs-5.2.4-2.fc28.x86_64 zlib-1.2.11-8.fc28.x86_64 (gdb) thread apply all bt Thread 8 (Thread 0x7ffff0e95700 (LWP 21625)): #0 0x00007ffff5964f2b in raise () from /lib64/libc.so.6 #1 0x00007ffff594f561 in abort () from /lib64/libc.so.6 #2 0x00005555555f38d8 in std::__replacement_assert (__file=__file@entry=0x5555558091c8 "/usr/include/c++/8/bits/stl_vector.h", __line=__line@entry=932, __function=__function@entry=0x55555586e180 <std::vector<char, std::allocator<char> >::operator[](unsigned long)::__PRETTY_FUNCTION__> "std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = char; _Alloc = std::allocator<char>; std::vector<_Tp, _Alloc>::reference = cha"..., __condition=__condition@entry=0x555555809198 "__builtin_expect(__n < this->size(), true)") at /usr/include/c++/8/x86_64-redhat-linux/bits/c++config.h:2389 #3 0x00005555557a54bd in std::vector<char, std::allocator<char> >::operator[] (__n=0, this=<synthetic pointer>) at dnsdist-tcp.cc:320 #4 tcpClientThread(int) () at dnsdist-tcp.cc:320 #5 0x00007ffff6358513 in ?? () from /lib64/libstdc++.so.6 #6 0x00007ffff6632594 in start_thread () from /lib64/libpthread.so.0 #7 0x00007ffff5a2800f in clone () from /lib64/libc.so.6
The text was updated successfully, but these errors were encountered:
This is probably similar to #6669
Sorry, something went wrong.
When looking at the backtrace (ie https://pastebin.com/r7jgfPNx), I realized the same happens for regular queries over TCP.
Ie dig @dnsdist example.com +tcp also triggers the same crash.
dig @dnsdist example.com +tcp
rgacogne
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Short description
Environment
Steps to reproduce
(Copied from https://bodhi.fedoraproject.org/updates/FEDORA-2018-908399dcfc:)
dig @127.0.0.1 example.com
Expected behaviour
dig returning a response
Actual behaviour
dnsdist crashes with sigabrt:
The text was updated successfully, but these errors were encountered: