CVE-2026-93076

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93076", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T15:57:05.661Z", "datePublished": "2026-09-17T16:10:58.370Z", "dateUpdated": "2026-10-19T09:05:11.949Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:05:11.949Z"}, "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/dax/fsdev.c"], "versions": [{"version": "d5406bd458b0ac10b1301a4d5801d85c8f648637", "lessThan": "d298a0513aaf7d48f2a9f4a90041de910750cfcf", "status": "affected", "versionType": "git"}, {"version": "d5406bd458b0ac10b1301a4d5801d85c8f648637", "lessThan": "e0239229931faf9ca3367e3befcf16f77b2cd45b", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/dax/fsdev.c"], "versions": [{"version": "7.1", "status": "affected"}, {"version": "0", "lessThan": "7.1", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d298a0513aaf7d48f2a9f4a90041de910750cfcf"}, {"url": "https://git.kernel.org/stable/c/e0239229931faf9ca3367e3befcf16f77b2cd45b"}], "title": "dax/fsdev: clear vmemmap_shift when binding static pgmap", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/dax/fsdev.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d298a0513aaf7d48f2a9f4a90041de910750cfcf", "status": "affected", "version": "d5406bd458b0ac10b1301a4d5801d85c8f648637", "versionType": "git"}, {"lessThan": "e0239229931faf9ca3367e3befcf16f77b2cd45b", "status": "affected", "version": "d5406bd458b0ac10b1301a4d5801d85c8f648637", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/dax/fsdev.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.1"}, {"lessThan": "7.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-93076", "lastModified": "2026-10-19T10:16:57.563", "metrics": {}, "published": "2026-09-17T17:18:01.540", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d298a0513aaf7d48f2a9f4a90041de910750cfcf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e0239229931faf9ca3367e3befcf16f77b2cd45b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5406bd458b0ac10b1301a4d5801d85c8f648637,d298a0513aaf7d48f2a9f4a90041de910750cfcf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d5406bd458b0ac10b1301a4d5801d85c8f648637,e0239229931faf9ca3367e3befcf16f77b2cd45b)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T06:45:17.072539+00:00", "updated": "2026-09-20T05:30:16.591578+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-665", "CWE-120"]}