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Google: sys-kernel/lakitu-kernel-6_1, sys-kernel/lakitu-kernel-6_6: security update to 18514.0.0

medium Tenable Cloud Security Plugin ID 473395

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: ext4: fix mb_cache_entry's e_refcnt
 leak in ext4_xattr_block_cache_find() Syzbot reports a warning as follows:
 ============================================ WARNING: CPU: 0 PID: 5075 at fs/mbcache.c:419
 mb_cache_destroy+0x224/0x290 Modules linked in: CPU: 0 PID: 5075 Comm: syz-executor199 Not tainted
 6.9.0-rc6-gb947cc5bf6d7 RIP: 0010:mb_cache_destroy+0x224/0x290 fs/mbcache.c:419 Call Trace: <TASK>
 ext4_put_super+0x6d4/0xcd0 fs/ext4/super.c:1375 generic_shutdown_super+0x136/0x2d0 fs/super.c:641
 kill_block_super+0x44/0x90 fs/super.c:1675 ext4_kill_sb+0x68/0xa0 fs/ext4/super.c:7327 [...]
 ============================================ This is because when finding an entry in
 ext4_xattr_block_cache_find(), if ext4_sb_bread() returns -ENOMEM, the ce's e_refcnt, which has already
 grown in the __entry_find(), won't be put away, and eventually trigger the above issue in
 mb_cache_destroy() due to reference count leakage. So call mb_cache_entry_put() on the -ENOMEM error
 branch as a quick fix. (CVE-2024-39276)

Solution

Update the sys-kernel/lakitu-kernel-6_1 library and its related packages to version 18514.0.0 or later.

See Also

https://storage.googleapis.com/cos-oval-vulnerability-feed/cos-117.oval.xml.tar.gz

Plugin Details

Severity: Medium

ID: 473395

Version: Revision 1.1

Type: Local

Published: 10/6/2026

Updated: 10/6/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

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:C/I:N/A:N

CVSS Score Source: CVE-2024-39276

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:H/I:N/A:N

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

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 6/25/2024

Reference Information

CVE: CVE-2024-39276