On Tue, Mar 22, 2022 at 11:02:16AM +0100, Halil Pasic wrote:
> Dear Stable Team,
>
> This is a backport of ddbd89deb7d3 ("swiotlb: fix info leak with
> DMA_FROM_DEVICE") and aa6f8dcbab47 ("swiotlb: rework "fix info leak with
> DMA_FROM_DEVICE"") to 5.10.y.
>
> I had to handle some merge conflicts, and at this point we have
> swiotlb_tbl_sync_single() as opposed to swiotlb_sync_single_for_device()
> so I had to handle that as well.
>
> Halil Pasic (2):
> swiotlb: fix info leak with DMA_FROM_DEVICE
> swiotlb: rework "fix info leak with DMA_FROM_DEVICE"
>
> kernel/dma/swiotlb.c | 24 ++++++++++++++++--------
> 1 file changed, 16 insertions(+), 8 deletions(-)
Thanks for these.
What about for kernels older than 5.10? Do they matter for this issue?
thanks,
greg k-h
