Detections
Analytics

Google: sys-kernel/cchost-kernel-6_12, sys-kernel/csql-kernel-6_12, sys-kernel/lakitu-kernel-6_12, sys-kernel/lakitu-nc-kernel-6_12: security update to 19506.505.8

high Tenable Self-Hosted Container Security Plugin ID 470156

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: fs/ntfs3: reject restart table growth
 beyond U16_MAX entries During $LogFile replay, log_replay() indexes the transaction table by the
 transact_id taken from the log record header. check_log_rec() only verifies that transact_id is non-zero
 and properly aligned, not its magnitude, so a crafted image can request an arbitrarily large index.
 alloc_rsttbl_from_idx() grows the table to cover that index via extend_rsttbl(), which passes the new
 entry count to init_rsttbl(): rt = init_rsttbl(esize, used + add); used + add is computed as u32 but
 init_rsttbl() takes a u16, and the count is stored in struct RESTART_TABLE as a __le16. When used + add
 exceeds U16_MAX it is truncated, init_rsttbl() allocates a table far smaller than the index requires, and
 alloc_rsttbl_from_idx() then dereferences and writes at the original, untruncated offset -- an out-of-
 bounds access past the allocation, reachable by mounting a crafted NTFS image. BUG: KASAN: use-after-free
 in alloc_rsttbl_from_idx (fs/ntfs3/fslog.c:950) Read of size 4 at addr ffff8880327ffff8 by task exploit
 alloc_rsttbl_from_idx (fs/ntfs3/fslog.c:950) log_replay (fs/ntfs3/fslog.c:4562) ntfs_loadlog_and_replay
 (fs/ntfs3/fsntfs.c:324) ntfs_fill_super (fs/ntfs3/super.c:1393) get_tree_bdev_flags vfs_get_tree
 path_mount __x64_sys_mount A restart table is limited to U16_MAX entries by its __le16 count, so a larger
 growth request is invalid input. Reject it in extend_rsttbl(); all callers already handle a NULL return.
 (CVE-2026-89782)

Solution

Update the sys-kernel/cchost-kernel-6_12 library and its related packages to version 19506.505.8 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-129.oval.xml.tar.gz

Plugin Details

Severity: High

ID: 470156

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: 4.9

Percentile: 58.25

Vendor

Vendor Severity: HIGH

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-2026-89782

CVSS v3

Risk Factor: High

Base Score: 8.4

Temporal Score: 7.3

Vector: CVSS:3.0/AV:L/AC:L/PR:N/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: 9/16/2026

Reference Information

CVE: CVE-2026-89782