netdev - Re: [PATCH net v2] net: tun: Fix memory leaks of napi_get

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Date:   Fri, 04 Nov 2022 11:00:16 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Wang Yufen <wangyufen@...wei.com>
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        peterpenkov96@...il.com
Subject: Re: [PATCH net v2] net: tun: Fix memory leaks of napi_get_frags

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@...emloft.net>:

On Wed, 2 Nov 2022 17:41:19 +0800 you wrote:
> kmemleak reports after running test_progs:
> 
> unreferenced object 0xffff8881b1672dc0 (size 232):
>   comm "test_progs", pid 394388, jiffies 4354712116 (age 841.975s)
>   hex dump (first 32 bytes):
>     e0 84 d7 a8 81 88 ff ff 80 2c 67 b1 81 88 ff ff  .........,g.....
>     00 40 c5 9b 81 88 ff ff 00 00 00 00 00 00 00 00  .@..............
>   backtrace:
>     [<00000000c8f01748>] napi_skb_cache_get+0xd4/0x150
>     [<0000000041c7fc09>] __napi_build_skb+0x15/0x50
>     [<00000000431c7079>] __napi_alloc_skb+0x26e/0x540
>     [<000000003ecfa30e>] napi_get_frags+0x59/0x140
>     [<0000000099b2199e>] tun_get_user+0x183d/0x3bb0 [tun]
>     [<000000008a5adef0>] tun_chr_write_iter+0xc0/0x1b1 [tun]
>     [<0000000049993ff4>] do_iter_readv_writev+0x19f/0x320
>     [<000000008f338ea2>] do_iter_write+0x135/0x630
>     [<000000008a3377a4>] vfs_writev+0x12e/0x440
>     [<00000000a6b5639a>] do_writev+0x104/0x280
>     [<00000000ccf065d8>] do_syscall_64+0x3b/0x90
>     [<00000000d776e329>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
> 
> [...]

Here is the summary with links:
  - [net,v2] net: tun: Fix memory leaks of napi_get_frags
    https://git.kernel.org/netdev/net/c/1118b2049d77

You are awesome, thank you!
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