Detections
Analytics

Google: sys-kernel/cchost-kernel-6_12, sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_18: security update to 19999.44.106

high Tenable Self-Hosted Container Security Plugin ID 475612

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - In the Linux kernel, the following vulnerability has been resolved: virtio: fix use-after-free in
 unregister_virtio_device() device_unregister() is device_del() plus put_device(). When the caller holds no
 extra reference, that drops the last one and runs the release callback, which for several transports frees
 the memory the embedded struct virtio_device sits in. unregister_virtio_device() then calls
 virtio_debug_device_exit(), which reads dev->debugfs_dir out of the freed object. Affected transports are
 the ones whose release callback frees and whose remove path takes no reference: virtio_mmio, virtio_vdpa,
 virtio_uml, mlxbf-tmfifo and virtio_ccw. virtio_pci is unaffected because virtio_pci_remove() brackets the
 call with get_device() and put_device(). Remove the debugfs entries before the device can go away. They
 are only accessed through the protected debugfs interface, so debugfs_remove_recursive() waits for in-
 progress file operations before returning. Tearing them down while the device is still alive is therefore
 safe. Reproduced on User-Mode Linux with CONFIG_KASAN and CONFIG_VIRTIO_DEBUG by unbinding a virtio-uml
 device: BUG: KASAN: slab-use-after-free in virtio_debug_device_exit+0x36/0x4d Read of size 8 at addr
 00000000616e0b10 by task init/1 __asan_report_load8_noabort virtio_debug_device_exit+0x36/0x4d
 unregister_virtio_device+0x48/0x75 virtio_uml_remove platform_remove device_release_driver_internal
 unbind_store Freed by task 1: kfree virtio_uml_release_dev device_release kobject_put put_device
 device_unregister With this applied, the report is gone and unbind is clean. (CVE-2026-97996)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19999.44.106 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-133.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 475612

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.34

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-97996

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 9/25/2026

Reference Information

CVE: CVE-2026-97996