CVE-2019-17075: Linux Kernel

High severity, CVSS 7.5. EPSS: 6.5% chance of exploitation in the next 30 days.

An issue was discovered in write_tpt_entry in drivers/infiniband/hw/cxgb4/mem.c in the Linux kernel through 5.3.2. The cxgb4 driver is directly calling dma_map_single (a DMA function) from a stack variable. This could allow an attacker to trigger a Denial of Service, exploitable if this driver is used on an architecture for which this stack/DMA interaction has security relevance.

Affected products

• Linux Linux Kernel: from 2.6.35, before 4.4.198 (fixed in 4.4.198); from 4.5.0, before 4.9.198 (fixed in 4.9.198); from 4.10, before 4.14.151 (fixed in 4.14.151); from 4.15, before 4.19.81 (fixed in 4.19.81); from 4.20, before 5.3.8 (fixed in 5.3.8)

Published 2019-10-01. Last modified 2026-06-17.