CVE-2026-93076: Linux vulnerability

CVE-2026-93076: dax/fsdev: clear vmemmap_shift when binding static pgmap

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.

UnknownCVSS not scoredNot KEV-listedUpdatedOct 19, 2026, 09:05 UTC (UTC+00:00)

Potential ATT&CK relevance

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CVE-2026-93076 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Sep 17, 2026, 16:10 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

3Timeline events

0ADP providers

3Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
Sep 17, 2026, 15:57 UTC (UTC+00:00)
CVE publishedCVE Program
The CVE record was published.
Sep 17, 2026, 16:10 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Oct 19, 2026, 09:05 UTC (UTC+00:00)

Source materials

CVE List V5 sourceCVE List V5
https://git.kernel.org/stable/c/d298a0513aaf7d48f2a9f4a90041de910750cfcfCVE reference, Linux
https://git.kernel.org/stable/c/e0239229931faf9ca3367e3befcf16f77b2cd45bCVE reference, Linux

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinuxd5406bd458b0ac10b1301a4d5801d85c8f648637, d5406bd458b0ac10b1301a4d5801d85c8f648637unaffected

LinuxLinux7.1, 0, 7.2.6, 7.3affected

Weakness

CWE details

No CWE listed

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