[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCHv1 net] xen-netfront: use correct linear area after linearizing an skb
From: David Vrabel <david.vrabel@xxxxxxxxxx> Date: Tue, 9 Dec 2014 18:43:28 +0000 > Commit 97a6d1bb2b658ac85ed88205ccd1ab809899884d (xen-netfront: Fix > handling packets on compound pages with skb_linearize) attempted to > fix a problem where an skb that would have required too many slots > would be dropped causing TCP connections to stall. > > However, it filled in the first slot using the original buffer and not > the new one and would use the wrong offset and grant access to the > wrong page. > > Netback would notice the malformed request and stop all traffic on the > VIF, reporting: > > vif vif-3-0 vif3.0: txreq.offset: 85e, size: 4002, end: 6144 > vif vif-3-0 vif3.0: fatal error; disabling device > > Reported-by: Anthony Wright <anthony@xxxxxxxxxxxxxxx> > Tested-by: Anthony Wright <anthony@xxxxxxxxxxxxxxx> > Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx> Applied and queued up for -stable, thanks. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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