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vuln-cve/data/2026/93xxx/CVE-2026-93076.json
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{
"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"
}
}
}
}