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Date: Tue, 2 Dec 2014 13:40:43 +0100 From: Willy Tarreau <w@....eu> To: Eric Dumazet <eric.dumazet@...il.com> Cc: netdev@...r.kernel.org, Maggie Mae Roxas <maggie.mae.roxas@...il.com>, Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>, Gregory CLEMENT <gregory.clement@...e-electrons.com>, Ezequiel Garcia <ezequiel.garcia@...e-electrons.com> Subject: Re: [PATCH] net: mvneta: fix race condition in mvneta_tx() On Tue, Dec 02, 2014 at 04:37:15AM -0800, Eric Dumazet wrote: > On Tue, 2014-12-02 at 04:30 -0800, Eric Dumazet wrote: > > From: Eric Dumazet <edumazet@...gle.com> > > > > mvneta_tx() dereferences skb to get skb->len too late, > > as hardware might have completed the transmit and TX completion > > could have freed the skb from another cpu. > > > > Signed-off-by: Eric Dumazet <edumazet@...gle.com> > > > > For completeness, this bug was added in linux-3.14 and seems a stable > candidate. > > Fixes: 71f6d1b31fb1 ("net: mvneta: replace Tx timer with a real interrupt") Absolutely, we backported this one back to 3.10. Thanks Eric! Willy -- 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
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