linux-kernel - Re: [PATCH net-2.6] sundance: Fix oopses with corrupted skb_shared

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20101225.194210.104056075.davem@davemloft.net>
Date:	Sat, 25 Dec 2010 19:42:10 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	jarkao2@...il.com
Cc:	soete.joel@...rlet.be, eric.dumazet@...il.com,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH net-2.6] sundance: Fix oopses with corrupted
 skb_shared_info

From: Jarek Poplawski <jarkao2@...il.com>
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@...il.com>
> 
> Reported-by: Joel Soete <soete.joel@...rlet.be>
> Tested-by: Joel Soete <soete.joel@...rlet.be>
> Signed-off-by: Jarek Poplawski <jarkao2@...il.com>
> Cc: Eric Dumazet <eric.dumazet@...il.com>

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 :-)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/