Incorrect calculation in Linux kernel - CVE-2026-93074
Published: September 18, 2026
Vulnerability identifier: #VU150933
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93074
CWE-ID: CWE-682
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to access an incorrect kernel virtual address.
The vulnerability exists due to incorrect address calculation in __fsdev_dax_direct_access() when handling multi-range DAX devices with physical gaps between ranges. A local user can invoke direct access for an offset that crosses a physical gap to access an incorrect kernel virtual address.
Affected software
Linux kernel
How to mitigate CVE-2026-93074
Install security update from vendor's repository.