Answer in brief
CVE-2026-90388 records a High severity (CVSS 7.8) vulnerability in iommu/dma: Check atomic pool allocation result directly. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9420139f516d7fbc248ce17f35275cb005ed98ea <ac9cd0a669b8be5d178dbd471b0d68039dac58b5 || >=9420139f516d7fbc248ce17f35275cb005ed98ea <db46cb9da83a507d86d2bb080bdb09c865da3d0a || >=9420139f516d7fbc248ce17f35275cb005ed98ea <d56c3f955b21e5764c1497e295a5b5d0b3a40470 || >=9420139f516d7fbc248ce17f35275cb005ed98ea <06dffc96693083dda3412311406e558cf27f1574 || >=9420139f516d7fbc248ce17f35275cb005ed98ea <a4ace31d732b657d774e31fb444c0c27d42c78e5 || >=9420139f516d7fbc248ce17f35275cb005ed98ea <fb0b39287ba894dbdfac2901c51788b63f5c2291 || >=9420139f516d7fbc248ce17f35275cb005ed98ea <8c486293ddd0af60991408149fc3e964ea888dc4 || >=9420139f516d7fbc248ce17f35275cb005ed98ea <af95a0ebc0a0db0762be75f51eadf770bad01aaa || 47184b9ddf184cc9a77cf441943a0fe9b7afa575 || >=5.8.6 <5.9 | ac9cd0a669b8be5d178dbd471b0d68039dac58b5, db46cb9da83a507d86d2bb080bdb09c865da3d0a, d56c3f955b21e5764c1497e295a5b5d0b3a40470, 06dffc96693083dda3412311406e558cf27f1574, a4ace31d732b657d774e31fb444c0c27d42c78e5, fb0b39287ba894dbdfac2901c51788b63f5c2291, 8c486293ddd0af60991408149fc3e964ea888dc4, af95a0ebc0a0db0762be75f51eadf770bad01aaa, 5.9 |
| Linux/Linuxgeneric | 5.9 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.