On Tue, Oct 19, 2021 at 03:01:43PM +0800, Jason Wang wrote:
If an untrusted device neogitates BLK_F_MQ but advertises a zero
s/neogitates/negotiates
num_queues, the driver may end up trying to allocating zero size buffers where ZERO_SIZE_PTR is returned which may pass the checking against the NULL. This will lead unexpected results. Fixing this by failing the probe in this case. Cc: Paolo Bonzini <pbonz...@redhat.com> Cc: Stefan Hajnoczi <stefa...@redhat.com> Cc: Stefano Garzarella <sgarz...@redhat.com> Signed-off-by: Jason Wang <jasow...@redhat.com> --- drivers/block/virtio_blk.c | 4 ++++ 1 file changed, 4 insertions(+)
Should we CC stable? Reviewed-by: Stefano Garzarella <sgarz...@redhat.com> _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
