CVE-2026-93076: Linux

Описание

Оригинално описание

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.

Засегнати продукти

• Linux Linux: d5406bd458b0ac10b1301a4d5801d85c8f648637 преди d298a0513aaf7d48f2a9f4a90041de910750cfcf; d5406bd458b0ac10b1301a4d5801d85c8f648637 преди e0239229931faf9ca3367e3befcf16f77b2cd45b
• Linux Linux: 7.1; преди 7.1; 7.2.6 до 7.2.*; 7.3 до *

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-93076
• https://nvd.nist.gov/vuln/detail/CVE-2026-93076
• https://git.kernel.org/stable/c/d298a0513aaf7d48f2a9f4a90041de910750cfcf
• https://git.kernel.org/stable/c/e0239229931faf9ca3367e3befcf16f77b2cd45b