netdev - Re: BUG: net/netfilter: KASAN: stack-out-of-bounds in tcp

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: <1459198306.6473.126.camel@edumazet-glaptop3.roam.corp.google.com>
Date:	Mon, 28 Mar 2016 13:51:46 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jan Engelhardt <jengelh@...i.de>
Cc:	David Miller <davem@...emloft.net>, kadlec@...ckhole.kfki.hu,
	sploving1@...il.com, pablo@...filter.org, kaber@...sh.net,
	netfilter-devel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: BUG: net/netfilter: KASAN: stack-out-of-bounds in tcp_packet

On Mon, 2016-03-28 at 13:46 -0700, Eric Dumazet wrote:

> We have at least 384 bytes of padding in skb->head (this is struct
> skb_shared_info).
> 
> Whatever garbage we might read, current code is fine.
> 
> We have to deal with a false positive here.

Very similar to the one fixed in 
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=10ec9472f05b45c94db3c854d22581a20b97db41