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CVE-2026-72149

7.5 · HIGH

In the Linux kernel, the following vulnerability has been resolved: dmaengine: tegra: Fix burst size calculation Currently, the Tegra GPC DMA hardware requires the transfer length to be a multipl…

Published Aug 15, 2026EPSS 0.65%

Overview

CVE-2026-72149 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

dmaengine: tegra: Fix burst size calculation

Currently, the Tegra GPC DMA hardware requires the transfer length to

be a multiple of the max burst size configured for the channel. When a

client requests a transfer where the length is not evenly divisible by

the configured max burst size, the DMA hangs with partial burst at

the end.

Fix this by reducing the burst size to the largest power-of-2 value

that evenly divides the transfer length. For example, a 40-byte

transfer with a 16-byte max burst will now use an 8-byte burst

(40 / 8 = 5 complete bursts) instead of causing a hang.

This issue was observed with the PL011 UART driver where TX DMA

transfers of arbitrary lengths were stuck.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/4651df83b6c796daead3447e8fd874322918ee4fRefgit.kernel.org/stable/c/6e37e9e230c7e848bd8e8cd4db15bb18bcf11ad1Refgit.kernel.org/stable/c/735951baa311c66353405dcac39375dd66441db0Refgit.kernel.org/stable/c/7926c1e4be86379945fb5f168888ac4d2aaf6c91Refgit.kernel.org/stable/c/8f0f5de1091119679d87f60dfb1acbff4b2a0ed3Refgit.kernel.org/stable/c/a3b76b54e06d73166af4d1a284a0e0711889060c

How CyberStrike helps

Frequently asked questions

What is CVE-2026-72149?

CVE-2026-72149 is a high-severity vulnerability. It was published on August 15, 2026 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2026-72149?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-72149?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-72149?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-72149 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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