Re: [PATCH net-2.6] sundance: Fix oopses with corruptedskb_shared_info

[David Miller]

From: Jarek Poplawski <jarkao2@xxxxxxxxx>
Date: Sat, 25 Dec 2010 16:12:17 +0100

> [PATCH net-2.6] sundance: Fix oopses with corrupted skb_shared_info
> 
> Joel Soete reported oopses at the beginning of pppoe connections since
> v2.6.35. After debugging the bug was found in sundance skb allocation
> and dma mapping code, where skb_reserve() bytes aren't taken into
> account. This is an old bug, only uncovered by some change in 2.6.35.
> 
> Initial debugging patch by: Eric Dumazet <eric.dumazet@xxxxxxxxx>
> 
> Reported-by: Joel Soete <soete.joel@xxxxxxxxxx>
> Tested-by: Joel Soete <soete.joel@xxxxxxxxxx>
> Signed-off-by: Jarek Poplawski <jarkao2@xxxxxxxxx>
> Cc: Eric Dumazet <eric.dumazet@xxxxxxxxx>

Applied, great work Jarek.

I was auditing ppp_generic.c hoping I'd find something, but
if I had that backtrace I wouldn't have bothered :-)
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