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 PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Fri, 09 Mar 2007 16:20:27 -0800 (PST) From: David Miller <davem@...emloft.net> To: latten@...tin.ibm.com Cc: netdev@...r.kernel.org, eparis@...hat.com, herbert@...dor.apana.org.au, jmorris@...ei.org, paul.moore@...com, vyekkirala@...stedCS.com Subject: Re: [PATCH]: double SAs are created when using AH and ESP together From: Joy Latten <latten@...tin.ibm.com> Date: Fri, 9 Mar 2007 17:14:54 -0600 > I noticed that in xfrm_state_add we look for the larval SA in a few > places without checking for protocol match. So when using both > AH and ESP, whichever one gets added first, deletes the larval SA. > It seems AH always gets added first and ESP is always the larval > SA's protocol since the xfrm->tmpl has it first. Thus causing the > additional km_query() > > Adding the check eliminates the double SA creation. > I know this may not seem like a complete solution and I will > continue to test and be on the lookout, but isn't having the > check a good thing? So far I have tested SAs with just ESP, just AH > and with both and all seems ok. > > Please let me know if this patch is ok. > My kernel was 2.6.20-rc3-git3. > > Signed-off-by: Joy Latten <latten@...tin.ibm.com> Generally it looks OK, but I'm going to let this one sit for a while before I apply it so that other folks can review it too and spot any unintended consequences. In particular, I find it strance that we didn't check the protocol field all this time and I wonder whether that might be on purpose for some reason. - 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
Powered by blists - more mailing lists