accel/kvm: set coalesced_mmio_ring to NULL after kvm_run is unmapped

[PATCH 0/1] accel/kvm: set coalesced_mmio_ring to NULL after kvm_run is unmapped

Sid Manning posted 1 patch 1 month, 2 weeks ago

Only 0 patches received!

accel/kvm/kvm-all.c | 2 ++
1 file changed, 2 insertions(+)

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[PATCH 0/1] accel/kvm: set coalesced_mmio_ring to NULL after kvm_run is unmapped

Posted by Sid Manning 1 month, 2 weeks ago

Encountered a segfault while exiting because kvm_flush_coalesced_mmio_buffer
was getting called after do_kvm_destroy_vcpu unmapped cpu->kvm_run.

kvm_state->coalesced_mmio_ring is an offset from cpu->kvm_run so it needs to
be set to NULL after kvm_run is unmapped to avoid getting dereferenced
by kvm_flush_coalesced_mmio_buffer.

Sid Manning (1):
  accel/kvm: set coalesced_mmio_ring to NULL after kvm_run is unmapped

 accel/kvm/kvm-all.c | 2 ++
 1 file changed, 2 insertions(+)

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2.34.1