Hi Yosry, On Thu, Jan 25, 2024 at 2:34 PM Yosry Ahmed <yosryahmed@xxxxxxxxxx> wrote: > > > > problem is that after the entry is isolated from the zswap LRU, we > > > need to grab the tree lock to make sure it's still there and get a > > > ref, and just trying to lock the tree may be a UAF if we race with > > > swapoff. > > > > I feel it is very wrong to have the tree freed while having > > outstanding entry allocationed from the tree pending. > > I would want to avoid that situation if possible. > > This should be the case with Chengming's solution. Thanks for confirming. Looking forward to Chenming's patch. Chris
