Messages in this thread | | | Date | Sat, 26 Mar 2022 11:18:06 +0100 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH 5.10 11/38] swiotlb: rework "fix info leak with DMA_FROM_DEVICE" |
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On Fri, Mar 25, 2022 at 10:08:27AM -0700, Linus Torvalds wrote: > On Fri, Mar 25, 2022 at 8:09 AM Greg Kroah-Hartman > <gregkh@linuxfoundation.org> wrote: > > > > From: Halil Pasic <pasic@linux.ibm.com> > > > > commit aa6f8dcbab473f3a3c7454b74caa46d36cdc5d13 upstream. > > This one causes a regression on at least some wireless drivers > (ath9k). There's some active discussion about it, maybe it gets > reverted, maybe there are other options. > > There's an ath9k patch that fixes the problem, so if this patch goes > into the stable tree the ath9k fix will follow. > > But it might be a good idea to simply hold off on this patch a bit, > because that ath9k patch hasn't actually landed yet, there's some > discussion about it all, and it's not clear that other drivers might > not have the same issue. > > So I'm not NAK'ing this patch from stable, but I also don't think it's > timing-critical, and it might be a good idea to delay it for a week or > two to both wait for the ath9k patch and to see if something else > comes up.
Yes, I've been watching that thread. This change is already in 5.15 and 5.16 kernels, and does solve one known security issue, so it's a tough call. I'll drop them from 5.10 and 5.4 for now and save them to see how it plays out...
thanks,
greg k-h
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