netdev - Re: [PATCH] ipv4: fix a race in ip4_datagram_release

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: <1404802064.3515.4.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 08 Jul 2014 08:47:44 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	dormando <dormando@...ia.net>
Cc:	Alexey Preobrazhensky <preobr@...gle.com>,
	Steffen Klassert <steffen.klassert@...unet.com>,
	David Miller <davem@...emloft.net>, paulmck@...ux.vnet.ibm.com,
	netdev@...r.kernel.org, Kostya Serebryany <kcc@...gle.com>,
	Dmitry Vyukov <dvyukov@...gle.com>,
	Lars Bull <larsbull@...gle.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Bruce Curtis <brutus@...gle.com>,
	Maciej Żenczykowski <maze@...gle.com>,
	Alexei Starovoitov <alexei.starovoitov@...il.com>
Subject: Re: [PATCH] ipv4: fix a race in ip4_datagram_release_cb()

On Mon, 2014-07-07 at 18:41 -0700, dormando wrote:

> Mostly there, but I think we hit what might be a new bug.. The machines
> which crashed every few days previously have been stable for weeks.
> 
> however I had one machine running the new kernel in a larger cluster
> elsewhere; we had a network event and the one machine on the new kernel
> panic'ed in ipv4_dst_destroy, but what looks like a new path. Sadly I've
> had to halt the rollout :( All of the older unfixed kernels survived this
> particular network event.
> 
> Unfortunately this is still on 3.10, due to a bad softirq regression in
> 3.14 I've not had time to track down. I applied all of your patches for
> what wasn't already in 3.10. The only other change I made was to un-revert
> 62713c4b6bc10c2d082ee1540e11b01a2b2162ab - which I'd been keeping reverted
> as it was making crashes much more frequent.

Hmm, always give patch title or a valid sha1 commit, this one is not in
David trees, so its hard to tell.


--
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