netdev - Re: [PATCH 1/2] af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey

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Date:   Wed, 16 Mar 2022 18:50:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Steffen Klassert <steffen.klassert@...unet.com>
Cc:     davem@...emloft.net, kuba@...nel.org, herbert@...dor.apana.org.au,
        netdev@...r.kernel.org
Subject: Re: [PATCH 1/2] af_key: add __GFP_ZERO flag for compose_sadb_supported in
 function pfkey_register

Hello:

This patch was applied to netdev/net.git (master)
by Steffen Klassert <steffen.klassert@...unet.com>:

On Wed, 16 Mar 2022 13:11:41 +0100 you wrote:
> From: Haimin Zhang <tcs_kernel@...cent.com>
> 
> Add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register
> to initialize the buffer of supp_skb to fix a kernel-info-leak issue.
> 1) Function pfkey_register calls compose_sadb_supported to request
> a sk_buff. 2) compose_sadb_supported calls alloc_sbk to allocate
> a sk_buff, but it doesn't zero it. 3) If auth_len is greater 0, then
> compose_sadb_supported treats the memory as a struct sadb_supported and
> begins to initialize. But it just initializes the field sadb_supported_len
> and field sadb_supported_exttype without field sadb_supported_reserved.
> 
> [...]

Here is the summary with links:
  - [1/2] af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register
    https://git.kernel.org/netdev/net/c/9a564bccb78a

You are awesome, thank you!
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