netdev - Re: [PATCH] net: llc: fix skb_over

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Date:   Tue, 27 Jul 2021 12:20:05 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Pavel Skripkin <paskripkin@...il.com>
Cc:     davem@...emloft.net, kuba@...nel.org, matthieu.baerts@...sares.net,
        stefan@...enfreihafen.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        syzbot+5e5a981ad7cc54c4b2b4@...kaller.appspotmail.com
Subject: Re: [PATCH] net: llc: fix skb_over_panic

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Sun, 25 Jul 2021 00:11:59 +0300 you wrote:
> Syzbot reported skb_over_panic() in llc_pdu_init_as_xid_cmd(). The
> problem was in wrong LCC header manipulations.
> 
> Syzbot's reproducer tries to send XID packet. llc_ui_sendmsg() is
> doing following steps:
> 
> 	1. skb allocation with size = len + header size
> 		len is passed from userpace and header size
> 		is 3 since addr->sllc_xid is set.
> 
> [...]

Here is the summary with links:
  - net: llc: fix skb_over_panic
    https://git.kernel.org/netdev/net/c/c7c9d2102c9c

You are awesome, thank you!
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