CVE-2019-17075 Denial of service in n/a

What is CVE-2019-17075?

CVE-2019-17075 is a high-severity denial of service vulnerability in Linux kernel, published on 1 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Which versions are affected by CVE-2019-17075?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2019-17075?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2019-17075 being exploited?

There is no known exploitation of CVE-2019-17075 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2019-17075, GHSA-gr9g-q7vr-6rvv, UBUNTU-CVE-2019-17075.