{"id":"CVE-2026-93076","revision":"ffc6f93f8e2f4e4f9e215a215361133a","records":[{"revision":"ffc6f93f8e2f4e4f9e215a215361133a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-93076","aliases":[],"title":"dax/fsdev: clear vmemmap_shift when binding static pgmap","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndax/fsdev: clear vmemmap_shift when binding static pgmap\n\nClear pgmap->vmemmap_shift for static DAX devices. When rebinding a static\ndevice from device_dax (which may set vmemmap_shift based on alignment) to\nfsdev_dax, the stale vmemmap_shift persists on the shared pgmap. Explicitly\nzero it before devm_memremap_pages() so the vmemmap is built for order-0\nfolios as fsdev requires.","state":0,"publishedAt":"2026-09-17T16:10:58.37+00:00","modifiedAt":"2026-10-19T09:05:11.949+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/dax/fsdev.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"d5406bd458b0ac10b1301a4d5801d85c8f648637\",\n                            \"lessThan\": \"d298a0513aaf7d48f2a9f4a90041de910750cfcf\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"d5406bd458b0ac10b1301a4d5801d85c8f648637\",\n                            \"lessThan\": \"e0239229931faf9ca3367e3befcf16f77b2cd45b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/dax/fsdev.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/d298a0513aaf7d48f2a9f4a90041de910750cfcf","https://git.kernel.org/stable/c/e0239229931faf9ca3367e3befcf16f77b2cd45b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-93076","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-93076","identifiers":["CVE-2026-93076"]},"retained":false,"historicalAffected":[]}],"coverage":[]}