CVE-2019-19045: Canonical Ubuntu Linux

Medium severity, CVSS 4.4. EPSS: 0.6% chance of exploitation in the next 30 days.

A memory leak in the mlx5_fpga_conn_create_cq() function in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c in the Linux kernel before 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 19.04 only; version 19.10 only
• Linux Linux Kernel: before 5.3.11 (fixed in 5.3.11)
• Opensuse Leap: version 15.1 only

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