netdev - Re: [PATCH 15/17] switch kernel_sendmsg() and kernel_recvmsg() to iov_iter

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: <20150414163403.GY889@ZenIV.linux.org.uk>
Date:	Tue, 14 Apr 2015 17:34:03 +0100
From:	Al Viro <viro@...IV.linux.org.uk>
To:	David Laight <David.Laight@...LAB.COM>
Cc:	"davem@...emloft.net" <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH 15/17] switch kernel_sendmsg() and kernel_recvmsg() to
 iov_iter_kvec()

On Tue, Apr 14, 2015 at 04:21:02PM +0000, David Laight wrote:

> Massive NAK.
> This breaks any code that is using msg_control to set SCTP parameters
> when sending data.

	Huh?  ->sendmsg() expects ->msg_control already in kernel space;
it's ->recvmsg() that plays silly buggers with userland pointers there.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html