On Jul 11, 2022, at 4:27 PM, Sean Christopherson <seanjc@xxxxxxxxxx> wrote: > Patch 1 fixes a bug found by syzkaller where KVM attempts to set the > TSS.busy bit during LTR before checking that the new TSS.base is valid. > > Patch 2 fixes a bug found by inspection (when reading the APM to verify > the non-canonical logic is correct) where KVM doesn't provide the correct > error code if the new TSS.base is non-canonical. > > Patch 3 makes the "dangling userspace I/O" WARN_ON two separate WARN_ON_ONCE > so that a KVM bug doesn't spam the kernel log (keeping the WARN is desirable > specifically to detect these types of bugs). Hi Sean, If/when you find that I screwed up, would you be kind enough to cc me? Very likely I won’t be able to assist too much in fixing the bugs under my current affiliation, but it is always interesting to see the escapees of Intel’s validation tools… ;-) Only if you can. Thanks, Nadav [ p.s. - please use my gmail account for the matter ]
