netdev - Re: [PATCH] net: usb: aqc111: Fix out-of-bounds accesses in RX fixup

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Date:   Wed, 06 Apr 2022 14:30:12 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Marcin Kozlowski <marcinguy@...il.com>
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH] net: usb: aqc111: Fix out-of-bounds accesses in RX fixup

Hello:

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

On Wed,  6 Apr 2022 10:05:37 +0200 you wrote:
> aqc111_rx_fixup() contains several out-of-bounds accesses that can be
> triggered by a malicious (or defective) USB device, in particular:
> 
>  - The metadata array (desc_offset..desc_offset+2*pkt_count) can be out of bounds,
>    causing OOB reads and (on big-endian systems) OOB endianness flips.
>  - A packet can overlap the metadata array, causing a later OOB
>    endianness flip to corrupt data used by a cloned SKB that has already
>    been handed off into the network stack.
>  - A packet SKB can be constructed whose tail is far beyond its end,
>    causing out-of-bounds heap data to be considered part of the SKB's
>    data.
> 
> [...]

Here is the summary with links:
  - net: usb: aqc111: Fix out-of-bounds accesses in RX fixup
    https://git.kernel.org/netdev/net/c/afb8e2465275

You are awesome, thank you!
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