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CVE-2026-90388

iommu/dma: Check atomic pool allocation result directly

HIGH
7.8
CVSS Score
Published: September 17, 2026 at 04:09 PM UTC
Updated: October 19, 2026 at 09:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
47184b9ddf184cc9a77cf441943a0fe9b7afa5755.8.65.99420139f516d7fbc248ce17f35275cb005ed98ea
Vendor states this is fixed in 06dffc96693083dda3412311406e558cf27f1574 (fixed)
Vendor states this is fixed in 8c486293ddd0af60991408149fc3e964ea888dc4 (fixed)
Vendor states this is fixed in a4ace31d732b657d774e31fb444c0c27d42c78e5 (fixed)
Vendor states this is fixed in ac9cd0a669b8be5d178dbd471b0d68039dac58b5 (fixed)
Vendor states this is fixed in af95a0ebc0a0db0762be75f51eadf770bad01aaa (fixed)
Vendor states this is fixed in d56c3f955b21e5764c1497e295a5b5d0b3a40470 (fixed)
Vendor states this is fixed in db46cb9da83a507d86d2bb080bdb09c865da3d0a (fixed)
Vendor states this is fixed in fb0b39287ba894dbdfac2901c51788b63f5c2291 (fixed)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 5.9 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

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

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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