Improper input validation in Linux kernel - CVE-2026-97441
Published: September 24, 2026
Vulnerability identifier: #VU152025
CSH Severity: Low
CVSS v4: 4.1 [CVSS:4.0/AV:P/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97441
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows an attacker with physical access to cause a denial of service.
The vulnerability exists due to improper validation of the mapped BAR size in the AHCI driver when probing an AHCI controller whose HOST_CAP register claims more ports than fit within the mapped BAR region. An attacker with physical access can trigger access to port registers beyond the BAR boundary to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-97441
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3