linux-kernel - Re: [PATCH net v5] net: sock: fix hardened usercopy panic in sock_recv

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Message-Id: 
 <176755096302.142863.3789456679843940692.git-patchwork-notify@kernel.org>
Date: Sun, 04 Jan 2026 18:22:43 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Weiming Shi <bestswngs@...il.com>
Cc: security@...nel.org, edumazet@...gle.com, davem@...emloft.net,
 kuba@...nel.org, pabeni@...hat.com, horms@...nel.org, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, xmei5@....edu
Subject: Re: [PATCH net v5] net: sock: fix hardened usercopy panic in
 sock_recv_errqueue

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Wed, 24 Dec 2025 04:35:35 +0800 you wrote:
> From: Weiming Shi <bestswngs@...il.com>
> 
> skbuff_fclone_cache was created without defining a usercopy region,
> [1] unlike skbuff_head_cache which properly whitelists the cb[] field.
> [2] This causes a usercopy BUG() when CONFIG_HARDENED_USERCOPY is
> enabled and the kernel attempts to copy sk_buff.cb data to userspace
> via sock_recv_errqueue() -> put_cmsg().
> 
> [...]

Here is the summary with links:
  - [net,v5] net: sock: fix hardened usercopy panic in sock_recv_errqueue
    https://git.kernel.org/netdev/net/c/2a71a1a8d0ed

You are awesome, thank you!
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