netdev - Re: [PATCH net] NFC: st21nfca: Fix memory leak in device probe and remove

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Date:   Tue, 28 Dec 2021 12:50:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Wei Yongjun <weiyongjun1@...wei.com>
Cc:     krzysztof.kozlowski@...onical.com, davem@...emloft.net,
        kuba@...nel.org, christophe.ricard@...il.com,
        sameo@...ux.intel.com, netdev@...r.kernel.org, hulkci@...wei.com
Subject: Re: [PATCH net] NFC: st21nfca: Fix memory leak in device probe and remove

Hello:

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

On Tue, 28 Dec 2021 12:48:11 +0000 you wrote:
> 'phy->pending_skb' is alloced when device probe, but forgot to free
> in the error handling path and remove path, this cause memory leak
> as follows:
> 
> unreferenced object 0xffff88800bc06800 (size 512):
>   comm "8", pid 11775, jiffies 4295159829 (age 9.032s)
>   hex dump (first 32 bytes):
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>     00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
>   backtrace:
>     [<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450
>     [<00000000c93382b3>] kmalloc_reserve+0x37/0xd0
>     [<000000005fea522c>] __alloc_skb+0x124/0x380
>     [<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2
> 
> [...]

Here is the summary with links:
  - [net] NFC: st21nfca: Fix memory leak in device probe and remove
    https://git.kernel.org/netdev/net/c/1b9dadba5022

You are awesome, thank you!
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