Detections
Analytics

Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6: security update to 19216.739.5

high Tenable Self-Hosted Container Security Plugin ID 475033

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: smb: client: fix use-after-free of
 iface in cifs_try_adding_channels() cifs_try_adding_channels() iterates ses->iface_list with
 list_for_each_entry_safe_from(), which captures the next entry (niface) under iface_lock. The loop body
 then drops iface_lock for the whole duration of cifs_ses_add_channel(). A concurrent interface refresh
 (SMB3_request_interfaces() -> parse_server_interfaces()) marks all ifaces inactive and removes and frees
 any that are not re-advertised via list_del() + kref_put(), where release_iface() is a bare kfree(). Since
 niface typically has no channel holding a reference, the list reference is its last and it can be freed
 inside the unlocked window. On continue, the iterator advance step then dereferences
 niface->iface_head.next, and the loop body reads iface->rdma_capable/is_active, both on freed memory. Fix
 this by never keeping an unreferenced list pointer across the unlocked window. Each channel attempt now
 re-scans the list from the head under iface_lock, takes a kref on the selected candidate, and passes only
 that referenced candidate to cifs_ses_add_channel(). weight_fulfilled still tracks selection progress, so
 restarting the scan preserves the original weighted distribution and the weight_fulfilled-before-kref_put
 ordering on the failure path. Add a per-pass attempts cap so a flapping interface refresh cannot keep the
 inner loop spinning within a single tries increment. (CVE-2026-98173)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19216.739.5 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-125.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 475033

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.38

Vendor

Vendor Severity: LOW

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-98173

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/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: 10/6/2026

Reference Information

CVE: CVE-2026-98173