netdev - Re: [PATCH/RFC] Use of uninitialized data in udp

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]

Date:	Mon, 5 Mar 2007 13:01:16 -0800 (PST)
From:	Jim Chow <jchow@...are.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
cc:	netdev@...r.kernel.org
Subject: Re: [PATCH/RFC] Use of uninitialized data in udp_recvmsg().

On Tue, 6 Mar 2007, Herbert Xu wrote:
> msg_flags [...] its initial value is not used.

That's not true.  Please see my post.

Specifically, at linux-2.6.20.1/net/ipv4/udp.c:843, it seems that 
udp_recvmsg() can randomly ignore whether the HW has computed a checksum 
and compute it in SW redundantly.

Jim
-
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