What’s Vulnerable › Vulnerabilities

CVE-2026-80884: ntb: Store original DMA address for future release

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-04 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: ntb: Store original DMA address for future release The DMA API requires that dma_free_attrs receive the exact dma_handle originally returned by the allocation function. Do not modify it.

Affected products

• Linux: 4.20 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/05a4585f76fd7bbec41bb7bf07a4d2ee2ba607d0
• https://git.kernel.org/stable/c/0f035333e19944f8ea7a423681f161eb1b2db21c
• https://git.kernel.org/stable/c/10662aafce4acd52278c942d0a5b3993594017b9
• https://git.kernel.org/stable/c/2b9ddb7311c79e8af2410abd97765fffd9ddf586
• https://git.kernel.org/stable/c/a4a046f668c7c7d0df9510cc426678563fff1b03
• https://git.kernel.org/stable/c/da6d997ac556479c112554ab5d95cbd04683eb11

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