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| author | Sean Christopherson <seanjc@google.com> | 2021-04-13 01:20:48 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-04-20 11:18:50 +0300 |
| commit | 2ee3757424be7c1cd1d0bbfa6db29a7edd82a250 (patch) | |
| tree | 3eabada22014fdb94656ec8e897a922a7a05e1ad /tools/perf/scripts/python/intel-pt-events.py | |
| parent | 24e7475f931ad7090c1e63dbaf12f338aeb81eac (diff) | |
| download | linux-2ee3757424be7c1cd1d0bbfa6db29a7edd82a250.tar.xz | |
KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU
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: f65886606c2d ("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>
Diffstat (limited to 'tools/perf/scripts/python/intel-pt-events.py')
0 files changed, 0 insertions, 0 deletions