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authorgVisor bot <gvisor-bot@google.com>2020-06-01 13:02:14 -0700
committergVisor bot <gvisor-bot@google.com>2020-06-01 13:02:14 -0700
commit288a1ca6f09cc6213713d00dca0d18600d2e857c (patch)
treec1533a6af201816d6455c9be8c2f8e9468242dff /pkg/sentry/platform
parent16100d18cbe27f01e1f0c147f91a694518ddc160 (diff)
parent5fa480a877b4aa4633797e2fd8cd0364eebc7366 (diff)
Merge pull request #2689 from lubinszARM:pr_prot_none
PiperOrigin-RevId: 314186752
Diffstat (limited to 'pkg/sentry/platform')
-rw-r--r--pkg/sentry/platform/kvm/machine_arm64.go6
1 files changed, 6 insertions, 0 deletions
diff --git a/pkg/sentry/platform/kvm/machine_arm64.go b/pkg/sentry/platform/kvm/machine_arm64.go
index e42505542..750751aa3 100644
--- a/pkg/sentry/platform/kvm/machine_arm64.go
+++ b/pkg/sentry/platform/kvm/machine_arm64.go
@@ -60,6 +60,12 @@ func rdonlyRegionsForSetMem() (phyRegions []physicalRegion) {
if !vr.accessType.Write && vr.accessType.Read {
rdonlyRegions = append(rdonlyRegions, vr.region)
}
+
+ // TODO(gvisor.dev/issue/2686): PROT_NONE should be specially treated.
+ // Workaround: treated as rdonly temporarily.
+ if !vr.accessType.Write && !vr.accessType.Read && !vr.accessType.Execute {
+ rdonlyRegions = append(rdonlyRegions, vr.region)
+ }
})
for _, r := range rdonlyRegions {