From: "David S. Miller" <davem@redhat.com>
To: Dawson Engler <engler@csl.Stanford.EDU>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [CHECKER] 9 potential copy_*_user bugs in 2.4.1
Date: Thu, 15 Mar 2001 23:07:02 -0800 (PST) [thread overview]
Message-ID: <15025.48022.36756.352238@pizda.ninka.net> (raw)
In-Reply-To: <200103160224.SAA03920@csl.Stanford.EDU>
In-Reply-To: <200103160224.SAA03920@csl.Stanford.EDU>
Dawson Engler writes:
> ---------------------------------------------------------
> [UNKNOWN] I'm not sure about this: "csum_partial_*" calls the generic
> cksum routine which does guard against user pointers ---
> is this redundant paranoia in this case?
>
> /u2/engler/mc/oses/linux/2.4.1/net/ipv4/tcp_output.c:643:tcp_retrans_try_collapse: ERROR:PARAM:651:643: tainted var 'skb_put' (from line 651) used as arg 0 to '__constant_memcpy'
csum_partial_copy_nocheck works on kernel pointers.
Later,
David S. Miller
davem@redhat.com
next prev parent reply other threads:[~2001-03-16 7:08 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-16 2:24 Dawson Engler
2001-03-16 3:11 ` Alexander Viro
2001-03-16 7:36 ` Dawson Engler
2001-03-16 13:05 ` Jamie Lokier
2001-03-16 5:54 ` Greg KH
2001-03-16 7:07 ` David S. Miller [this message]
2001-03-16 10:06 ` David Woodhouse
2001-03-16 19:26 ` Russell King
2001-03-16 20:56 ` Locking question (was: [CHECKER] 9 potential copy_*_user bugs in 2.4.1) Nigel Gamble
2001-03-20 8:42 ` [CHECKER] 9 potential copy_*_user bugs in 2.4.1 Rusty Russell
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