Dave Airlie <airlied@xxxxxxxxx> 于2022年10月27日周四 08:01写道： > > On Fri, 7 Oct 2022 at 11:38, Zheng Wang <zyytlz.wz@xxxxxxx> wrote: > > > > If intel_gvt_dma_map_guest_page failed, it will call > > ppgtt_invalidate_spt, which will finally free the spt. > > But the caller does not notice that, it will free spt again in error path. > > > > Fix this by spliting invalidate and free in ppgtt_invalidate_spt. > > Only free spt when in good case. > > > > Reported-by: Zheng Wang <hackerzheng666@xxxxxxxxx> > > Signed-off-by: Zheng Wang <zyytlz.wz@xxxxxxx> > > Has this landed in a tree yet, since it's a possible CVE, might be > good to merge it somewhere. > > Dave. > Hi Dave, This patched hasn't been merged yet. Could you please help with this? Best Regards, Zheng Wang
