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 19862.0.0

medium Tenable Cloud Security Plugin ID 471308

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: block: bio-integrity: Fix null-ptr-
 deref in bio_integrity_map_user() pin_user_pages_fast() can partially succeed and return the number of
 pages that were actually pinned. However, the bio_integrity_map_user() does not handle this partial
 pinning. This leads to a general protection fault since bvec_from_pages() dereferences an unpinned page
 address, which is 0. To fix this, add a check to verify that all requested memory is pinned. If partial
 pinning occurs, unpin the memory and return -EFAULT. Kernel Oops: Oops: general protection fault, probably
 for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range
 [0x0000000000000008-0x000000000000000f] CPU: 0 UID: 0 PID: 1061 Comm: nvme-passthroug Not tainted
 7.0.0-11783-g90957f9314e8-dirty #16 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
 BIOS rel-1.17.0-0-gb52ca86e094d-prebuilt.qemu.org 04/01/2014 RIP:
 0010:bio_integrity_map_user.cold+0x1b0/0x9d6 (CVE-2026-64052)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19862.0.0 or later.

See Also

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

Plugin Details

Severity: Medium

ID: 471308

Version: Revision 1.6

Type: Local

Published: 10/3/2026

Updated: 10/6/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.7

Percentile: 95.96

Vendor

Vendor Severity: MEDIUM

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-64052

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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: 6/4/2026

Reference Information

CVE: CVE-2026-64052