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Sai Rajesh Tallamraju authored
Memory and PCI resources are freed with no particular order. This could cause use-after-frees when detaching following a failed attach. For instance, iflib_tx_structures_free() frees ctx->ifc_txqs[] but iflib_tqg_detach() attempts to access this array. Similarly, adapter queues gets freed by IFDI_QUEUES_FREE() but IFDI_DETACH() attempts to access adapter queues to free PCI resources. MFC after: 2 weeks Sponsored by: NetApp, Inc. Differential Revision: https://reviews.freebsd.org/D27634
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