CVE-2026-93076
dax/fsdev: clear vmemmap_shift when binding static pgmap
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: dax/fsdev: clear vmemmap_shift when binding static pgmap Clear pgmap->vmemmap_shift for static DAX devices. When rebinding a static device from device_dax (which may set vmemmap_shift based on alignment) to fsdev_dax, the stale vmemmap_shift persists on the shared pgmap. Explicitly zero it before devm_memremap_pages() so the vmemmap is built for order-0 folios as fsdev requires.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
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Affected Versions
Linux / Linux
d5406bd458b0ac10b1301a4d5801d85c8f648637 < d298a0513aaf7d48f2a9f4a90041de910750cfcf d5406bd458b0ac10b1301a4d5801d85c8f648637 < e0239229931faf9ca3367e3befcf16f77b2cd45b
Linux / Linux
7.1