Improper resource shutdown or release in Linux kernel - CVE-2026-97987
Published: September 28, 2026
Vulnerability identifier: #VU152492
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97987
CWE-ID: CWE-404
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause DMA access to torn-down virtqueues.
The vulnerability exists due to improper resource shutdown in the virtio_input probe error path when handling a failed input device registration. A local user can trigger the failed registration path to cause DMA access to torn-down virtqueues.
The device is marked DRIVER_OK before input device registration is attempted.
Affected software
Linux kernel
How to mitigate CVE-2026-97987
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3