High 7.8Published Sep 17, 2026

CVE-2026-90388iommu/dma: Check atomic pool allocation result directly

Updated under an hour ago (Oct 27, 2026, 4:30 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 9420139f516d7fbc248ce17f35275cb005ed98ea before ac9cd0a669b8be5d178dbd471b0d68039dac58b5; from 9420139f516d7fbc248ce17f35275cb005ed98ea before db46cb9da83a507d86d2bb080bdb09c865da3d0a; from 9420139f516d7fbc248ce17f35275cb005ed98ea before d56c3f955b21e5764c1497e295a5b5d0b3a40470; 9420139f516d7fbc248ce17f35275cb005ed98ea builds before 06dffc96693083dda3412311406e558cf27f1574; from 9420139f516d7fbc248ce17f35275cb005ed98ea before a4ace31d732b657d774e31fb444c0c27d42c78e5; from 9420139f516d7fbc248ce17f35275cb005ed98ea before fb0b39287ba894dbdfac2901c51788b63f5c2291; 9420139f516d7fbc248ce17f35275cb005ed98ea builds before 8c486293ddd0af60991408149fc3e964ea888dc4; from 9420139f516d7fbc248ce17f35275cb005ed98ea before af95a0ebc0a0db0762be75f51eadf770bad01aaa; and 2 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/ac9cd0a669b8be5d178dbd471b0d68039dac58b5
https://git.kernel.org/stable/c/db46cb9da83a507d86d2bb080bdb09c865da3d0a
https://git.kernel.org/stable/c/d56c3f955b21e5764c1497e295a5b5d0b3a40470
https://git.kernel.org/stable/c/06dffc96693083dda3412311406e558cf27f1574
https://git.kernel.org/stable/c/a4ace31d732b657d774e31fb444c0c27d42c78e5
https://git.kernel.org/stable/c/fb0b39287ba894dbdfac2901c51788b63f5c2291
https://git.kernel.org/stable/c/8c486293ddd0af60991408149fc3e964ea888dc4
https://git.kernel.org/stable/c/af95a0ebc0a0db0762be75f51eadf770bad01aaa

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.