On 26/11/19 18:53, Leonardo Bras wrote: > > I agree an use-after-free more problem than a memory leak, but I think > that there is a way to solve this without leaking the memory also. > > One option would be reordering the kvm_put_kvm(), like in this patch: > https://lkml.org/lkml/2019/11/26/517 It's a tradeoff between "fix one bug" and "mitigate all bugs of that class", both are good things to do. Reordering the kvm_put_kvm() fixes the bug. kvm_put_kvm_no_destroy() makes all bugs of that kind less severe, but it doesn't try to fix them. Paolo
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