iommu/dma: Check atomic pool allocation result directly
Priority LOW 33Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 5 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.00169 6th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.9, 5.10.270, 5.15.221 +6Red Hat: 5 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.9
- Fix · CNA Linux (Linux) Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.52, 7.2.6, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-90388
- 2026-10-03 Alias added: GHSA-f6r8-238v-4fm2
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-10-20 Affected versions changed · Red Hat
- 2026-10-20 CVSS score added · Red Hat
- 2026-11-01 Affected versions changed · Red Hat
References
Other 8
- 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
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Sources
- CVE-2026-90388 · CVE Program
- CVE-2026-90388 · NVD
- FIRST EPSS
- GHSA-f6r8-238v-4fm2 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-90388 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences