Use-after-free in Linux kernel - CVE-2026-97996
Published: September 28, 2026
Vulnerability identifier: #VU152483
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97996
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to read freed memory.
The vulnerability exists due to use-after-free in unregister_virtio_device() when unregistering a virtio device. A local user can unbind a virtio device to read freed memory.
The issue affects virtio_mmio, virtio_vdpa, virtio_uml, mlxbf-tmfifo, and virtio_ccw transports.
Affected software
Linux kernel
How to mitigate CVE-2026-97996
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3