Re: [PATCH net] net: usb: cx82310_eth: bound partial-frame remainder by current skb length
Andrew Lunn <[email protected]>
| Newsgroups | org.kernel.vger.linux-usb,org.kernel.vger.netdev |
|---|---|
| Message-ID | <[email protected]> |
On Fri, Aug 14, 2026 at 09:08:14PM +0200, Jason Winter wrote:
> When a frame straddles two bulk URBs, cx82310_rx_fixup() stores the
> number of bytes still expected in dev->partial_rem and on the next call
> memcpy()s that many bytes from the new skb without checking that the new
> URB actually delivered that much data. A malicious device
So this is somewhat theoretical. Maybe less so than average, since
this is a USB dongle, but still, does it bother people?
Please drop the Fixes: tag and post for net-next.
https://www.kernel.org/doc/html/latest/process/maintainer-netdev.html
Andrew
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