CVE-2026-93076
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.
- Status
- Received - 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- Published
- 2026-09-17
- Last modified
- 2026-10-19
Affected products
References
- https://git.kernel.org/stable/c/d298a0513aaf7d48f2a9f4a90041de910750cfcf
- https://git.kernel.org/stable/c/e0239229931faf9ca3367e3befcf16f77b2cd45b
