netdev - Re: [PATCH iproute2] libnetlink.c: Fix memory leak in batch mode

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Date:   Sat, 18 Feb 2023 01:50:17 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Denys Fedoryshchenko <nuclearcat@...learcat.com>
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH iproute2] libnetlink.c: Fix memory leak in batch mode

Hello:

This patch was applied to iproute2/iproute2.git (main)
by Stephen Hemminger <stephen@...workplumber.org>:

On Sat, 11 Feb 2023 01:46:37 +0200 you wrote:
> During testing we noticed significant memory leak that is easily
> reproducible and detectable with valgrind:
> 
> ==2006284== 393,216 bytes in 12 blocks are definitely lost in loss record 5 of 5
> ==2006284==    at 0x4848899: malloc (in /usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
> ==2006284==    by 0x18C73E: rtnl_recvmsg (libnetlink.c:830)
> ==2006284==    by 0x18CF9E: __rtnl_talk_iov (libnetlink.c:1032)
> ==2006284==    by 0x18D3CE: __rtnl_talk (libnetlink.c:1140)
> ==2006284==    by 0x18D4DE: rtnl_talk (libnetlink.c:1168)
> ==2006284==    by 0x11BF04: tc_filter_modify (tc_filter.c:224)
> ==2006284==    by 0x11DD70: do_filter (tc_filter.c:748)
> ==2006284==    by 0x116B06: do_cmd (tc.c:210)
> ==2006284==    by 0x116C7C: tc_batch_cmd (tc.c:231)
> ==2006284==    by 0x1796F2: do_batch (utils.c:1701)
> ==2006284==    by 0x116D05: batch (tc.c:246)
> ==2006284==    by 0x117327: main (tc.c:331)
> ==2006284==
> ==2006284== LEAK SUMMARY:
> ==2006284==    definitely lost: 884,736 bytes in 27 blocks
> 
> [...]

Here is the summary with links:
  - [iproute2] libnetlink.c: Fix memory leak in batch mode
    https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=6d25be27cc29

You are awesome, thank you!
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