Re: [PATCH] forcedeth: fix random memory scribbling bug

[Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>]

Linus Torvalds wrote:

> Of course, on the alloc path, it seems to add an additional 
> "NV_RX_ALLOC_PAD" thing, so maybe the "end-data" thing makes sense.
>
>  
The problem is the pci_unmap_single() call that happens during 
nv_close() or the rx interrupt handler. I think it makes more sense to 
rely on fields in the individual skb instead of reading from 
np->rx_buf_sz. If np->rx_buf_sz changes inbetween, then we have a memory 
leak.

--
   Manfred