CVE-2026-90388

HIGHCVSS 7.8/10

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..

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

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).
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