Answer in brief
CVE-2026-80686 records a Unknown severity vulnerability in mm: migrate_device: fix pte_pfn/pte_dirty called on non-present PTE. 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.
A CVSS score is not reported in the current record. 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 | >=6c287605fd56466e645693eff3ae7c08fba56e0a <26f9ca8ed42cba25d2c75daff13561cce6019395 || >=6c287605fd56466e645693eff3ae7c08fba56e0a <5b948706f11a950bc73c5304630d0a7eafc40daf || >=6c287605fd56466e645693eff3ae7c08fba56e0a <86d55447de3738620b9a8272ff167ce97e7f7203 || >=6c287605fd56466e645693eff3ae7c08fba56e0a <2be94d6b20789b8865b1864dae5fe458ca85e019 || >=6c287605fd56466e645693eff3ae7c08fba56e0a <42f30fa5481a1f90571ccdfbb20d2e25e47ae76e || >=6c287605fd56466e645693eff3ae7c08fba56e0a <63867c82d0c0c2d182016a32b1cc0103116b0ea5 | 26f9ca8ed42cba25d2c75daff13561cce6019395, 5b948706f11a950bc73c5304630d0a7eafc40daf, 86d55447de3738620b9a8272ff167ce97e7f7203, 2be94d6b20789b8865b1864dae5fe458ca85e019, 42f30fa5481a1f90571ccdfbb20d2e25e47ae76e, 63867c82d0c0c2d182016a32b1cc0103116b0ea5 |
| Linux/Linuxgeneric | 5.19 | Not reported |
Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 28, 2026
In the Linux kernel, the following vulnerability has been resolved: mm: migrate_device: fix pte_pfn/pte_dirty called on non-present PTE pte_pfn() and pte_dirty() have undefined behaviour when called on a non-present PTE. In migrate_vma_collect_pmd(), these functions may be invoked on non-present entries (e.g., device-private entries), leading to potential crashes from pte_pfn() or incorrect dirty folio accounting from pte_dirty(). Fix both by guarding with pte_present() checks.
Quoted source text, attributed separately from HOL analysis.