A memory leak in the mwifiex_pcie_alloc_cmdrsp_buf() function in drivers/net/wireless/marvell/mwifiex/pcie.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering mwifiex_map_pci_memory() failures, aka CID-db8fd2cde932. CREATE(Triage):(User=admin) CVE-2019-19056 (https://nvd.nist.gov/vuln/detail/CVE-2019-19056)