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Currently, when a VF is created, it uses the 'params' object of the PF as it is. In other words, the 'params.serial' string memory area is also shared. In this situation, if the VF is removed from the system, the PF's 'params.serial' object is released with object_finalize() followed by object_property_del_all() which release the memory for 'serial' property. If that happens, the next VF created will inherit a serial from a corrupted memory area. If this happens, an error will occur when comparing subsys->serial and n->params.serial in the nvme_subsys_register_ctrl() function. Cc: qemu-stable@nongnu.org Fixes: 44c2c09488db ("hw/nvme: Add support for SR-IOV") Signed-off-by: Minwoo Im <minwoo.im@samsung.com> Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Signed-off-by: Klaus Jensen <k.jensen@samsung.com>