CVE-2026-93074

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-93074

Key Details

CVE	CVE-2026-93074
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

dax/fsdev: use __va(phys) for kaddr in direct_access

Use __va(phys) instead of virt_addr + linear_offset for the kaddr

return in __fsdev_dax_direct_access(). The previous code added a

device-linear byte offset to virt_addr (which is __va of ranges[0]),

but for multi-range devices with physical gaps between ranges, this

linear arithmetic crosses the gap and produces a wrong kernel virtual

address. Using __va(phys) where phys comes from dax_pgoff_to_phys()

is correct for any range layout because the direct map translates

each physical address independently.

This leaves dev_dax->virt_addr write-only, so remove the field

(suggested by Dave Jiang). (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-93074
CVE	https://www.cve.org/CVERecord?id=CVE-2026-93074

Source

Reference

NVD

CVE