netdev - Re: 2.6.25 crash: EIP: [<c02e2f14>] xfrm_output_resume+0x64/0x100 ss:esp 0068:c03a1e5c

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: <E1JrXMB-00028Q-00@gondolin.me.apana.org.au>
Date:	Thu, 01 May 2008 19:53:47 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	pupilla@...mail.com (Marco Berizzi)
Cc:	netdev@...r.kernel.org
Subject: Re: 2.6.25 crash: EIP: [<c02e2f14>] xfrm_output_resume+0x64/0x100 ss:esp 0068:c03a1e5c

Marco Berizzi <pupilla@...mail.com> wrote:

> I have removed these modules from
> the two boxes that are crashing:

OK, I've matched up your xfrm_output.o with the crash and it
would appear that skb->dst is either NULL or crap after the
local_out call in xfrm_output_resume.  We know that it was valid
before the call because skb->dst is used to make that call.

So it would appear that some netfilter rule has freed skb->dst.
Do you have relevant netfilter rules, e.g., NAT entries or any
rules that might reroute the packet?

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
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