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CVE-2026-90388

HIGHCVSS 7.8/10EPSS 0.16%

Last modified

CVE-2026-90388 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: iommu/dma: Check atomic pool allocation result directly The non-blocking, non-coherent allocation path uses dma_alloc_from_pool(), which returns the allocated page and fills cpu_addr only on success. Do not rely on cpu_addr to detect allocation failure in this path. Check the returned page directly before using it for the IOMMU mapping.. EPSS estimates a 0.16% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/dma: Check atomic pool allocation result directly The non-blocking, non-coherent allocation path uses dma_alloc_from_pool(), which returns the allocated page and fills cpu_addr only on success. Do not rely on cpu_addr to detect allocation failure in this path. Check the returned page directly before using it for the IOMMU mapping.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.16%

5.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 9420139f516d7fbc248ce17f35275cb005ed98ea, < ac9cd0a669b8be5d178dbd471b0d68039dac58b5; >= 9420139f516d7fbc248ce17f35275cb005ed98ea, < db46cb9da83a507d86d2bb080bdb09c865da3d0a; >= 9420139f516d7fbc248ce17f35275cb005ed98ea, < d56c3f955b21e5764c1497e295a5b5d0b3a40470; >= 9420139f516d7fbc248ce17f35275cb005ed98ea, < 06dffc96693083dda3412311406e558cf27f1574; >= 9420139f516d7fbc248ce17f35275cb005ed98ea, < a4ace31d732b657d774e31fb444c0c27d42c78e5; >= 9420139f516d7fbc248ce17f35275cb005ed98ea, < fb0b39287ba894dbdfac2901c51788b63f5c2291; >= 9420139f516d7fbc248ce17f35275cb005ed98ea, < 8c486293ddd0af60991408149fc3e964ea888dc4; >= 9420139f516d7fbc248ce17f35275cb005ed98ea, < af95a0ebc0a0db0762be75f51eadf770bad01aaa; 47184b9ddf184cc9a77cf441943a0fe9b7afa575; >= 5.8.6, < 5.9
LinuxLinux5.9

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-90388?
In the Linux kernel, the following vulnerability has been resolved: iommu/dma: Check atomic pool allocation result directly The non-blocking, non-coherent allocation path uses dma_alloc_from_pool(), which returns the allocated page and fills cpu_addr only on success. Do not rely on cpu_addr to detect allocation failure in this path. Check the returned page directly before using it for the IOMMU mapping.
How severe is CVE-2026-90388?
CVE-2026-90388 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.16% probability of exploitation in the next 30 days.
How do I fix CVE-2026-90388?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST