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Kernel: Rename VMObject::clone() => try_clone()
And fix an unsafe dereference in SharedInodeVMObject::try_clone() to make it OOM-safe.
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parent
d85bce57b3
commit
f244a25f71
11 changed files with 13 additions and 13 deletions
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@ -245,7 +245,7 @@ KResultOr<Region*> VirtIOFrameBufferDevice::mmap(Process& process, FileDescripti
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if (m_userspace_mmap_region)
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return ENOMEM;
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auto vmobject = m_are_writes_active ? m_framebuffer->vmobject().clone() : m_framebuffer_sink_vmobject;
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auto vmobject = m_are_writes_active ? m_framebuffer->vmobject().try_clone() : m_framebuffer_sink_vmobject;
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if (vmobject.is_null())
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return ENOMEM;
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@ -267,7 +267,7 @@ void VirtIOFrameBufferDevice::deactivate_writes()
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m_are_writes_active = false;
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if (m_userspace_mmap_region) {
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auto* region = m_userspace_mmap_region.unsafe_ptr();
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auto vm_object = m_framebuffer_sink_vmobject->clone();
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auto vm_object = m_framebuffer_sink_vmobject->try_clone();
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VERIFY(vm_object);
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region->set_vmobject(vm_object.release_nonnull());
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region->remap();
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