CVE-2019-19056: Canonical Ubuntu Linux

Medium severity, CVSS 4.7. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 19.10 only
• Debian Debian Linux: version 8.0 only
• Fedoraproject Fedora: version 30 only; version 31 only
• Linux Linux Kernel: up to and including 5.3.11
• Opensuse Leap: version 15.1 only

Published 2019-11-18. Last modified 2026-06-17.