Sean Christopherson 03c6cccedd KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU ... commit 2ee3757424be7c1cd1d0bbfa6db29a7edd82a250 upstream. If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new null bus. Destroying devices before the bus is nullified could lead to use-after-free since readers expect the devices on their reference of the bus to remain valid. Fixes: f65886606c ("KVM: fix memory leak in kvm_io_bus_unregister_dev()") Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20210412222050.876100-2-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-05-14 09:50:04 +02:00
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kvm	KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU	2021-05-14 09:50:04 +02:00
lib	irqbypass: do not start cons/prod when failed connect	2020-08-05 11:08:42 -04:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00