Joshua, Since this is apparently fixed in Debian 8.0, couldn't it have been fixed already upstream? In which case, the problem would rather be updating the Ubuntu LTS version (or backporting the fix)?
On Wed, May 17, 2017 at 11:56 PM, Joshua Powers <josh.pow...@canonical.com> wrote: > I believe this is the upstream project: > https://github.com/tgraf/libnl > > ** Tags added: bitesize needs-upstream-report > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1690836 > > Title: > libnl-genl-3.0 memory leak > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/libnl3/+bug/ > 1690836/+subscriptions > -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libnl3 in Ubuntu. https://bugs.launchpad.net/bugs/1690836 Title: libnl-genl-3.0 memory leak Status in libnl3 package in Ubuntu: Confirmed Bug description: It seems that there is a memory leak in the libnl-genl-3.0 library. The memory-leak can be seen when the function genl_ctrl_resolve() fails. It seems that this function copy a buffer and forget to deallocate it properly: 258 cb = nl_cb_clone(orig); // buffer copied not freed ----------------------------------------------------------------------------- The following attached source-code can help you to reproduce this behavior on Ubuntu 14.04. It forces an issue on the genl_ctrl_resolve by asking an unknown netlink-family. To compile program: g++ -std=c++11 main.cpp $(pkg-config --cflags --libs libnl-3.0 libnl-genl-3.0) -o main To detect memory-leak using Valgrind: valgrind --leak-check=full ./main ----------------------------------------------------------------------------- Executing it on Debian 8.0 shows "no memory leak": sylvain@debian:~/test$ lsb_release -rd Description: Debian GNU/Linux 8.8 (jessie) Release: 8.8 sylvain@debian:~/test$ g++ -std=c++11 main.cpp $(pkg-config --cflags --libs libnl-3.0 libnl-genl-3.0) -o main sylvain@debian:~/test$ valgrind --leak-check=full ./main ==26390== Memcheck, a memory error detector ==26390== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al. ==26390== Using Valgrind-3.10.0 and LibVEX; rerun with -h for copyright info ==26390== Command: ./main ==26390== start test error: can't retrieve the netlink-family id end test ==26390== ==26390== HEAP SUMMARY: ==26390== in use at exit: 0 bytes in 0 blocks ==26390== total heap usage: 13 allocs, 13 frees, 22,142 bytes allocated ==26390== ==26390== All heap blocks were freed -- no leaks are possible ==26390== ==26390== For counts of detected and suppressed errors, rerun with: -v ==26390== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0) ----------------------------------------------------------------------------- Executing it on Ubuntu 14.04 shows a memory leak: ubuntu@ubuntu:~$ lsb_release -rd Description: Ubuntu 14.04.5 LTS Release: 14.04 ubuntu@ubuntu:~$ g++ -std=c++11 main.cpp $(pkg-config --cflags --libs libnl-3.0 libnl-genl-3.0) -o main ubuntu@ubuntu:~$ valgrind --leak-check=full ./main ==37377== Memcheck, a memory error detector ==37377== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al. ==37377== Using Valgrind-3.10.1 and LibVEX; rerun with -h for copyright info ==37377== Command: ./main ==37377== start test error: can't retrieve the netlink-family id end test ==37377== ==37377== HEAP SUMMARY: ==37377== in use at exit: 224 bytes in 1 blocks ==37377== total heap usage: 13 allocs, 12 frees, 22,142 bytes allocated ==37377== ==37377== 224 bytes in 1 blocks are definitely lost in loss record 1 of 1 ==37377== at 0x4C2CC70: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==37377== by 0x5048FAA: nl_cb_alloc (in /lib/x86_64-linux-gnu/libnl-3.so.200.16.1) ==37377== by 0x504CB1E: nl_socket_alloc (in /lib/x86_64-linux-gnu/libnl-3.so.200.16.1) ==37377== by 0x4012E3: A::Init() (in /home/ubuntu/main) ==37377== by 0x401189: main (in /home/ubuntu/main) ==37377== ==37377== LEAK SUMMARY: ==37377== definitely lost: 224 bytes in 1 blocks ==37377== indirectly lost: 0 bytes in 0 blocks ==37377== possibly lost: 0 bytes in 0 blocks ==37377== still reachable: 0 bytes in 0 blocks ==37377== suppressed: 0 bytes in 0 blocks ==37377== ==37377== For counts of detected and suppressed errors, rerun with: -v ==37377== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0) Thanks, Sylvain Trinquet To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libnl3/+bug/1690836/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
