Detections
Analytics

Echo: linux: security update to 6.12.96-1

medium Tenable Cloud Security Plugin ID 464066

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: fix missing run load for
 vcn0 in attr_data_get_block_locked() When a compressed or sparse attribute has its clusters frame-aligned,
 vcn is rounded down to the frame start using cmask, which can result in vcn != vcn0. In this case, vcn and
 vcn0 may reside in different attribute segments. The code already handles the case where vcn is in a
 different segment by loading its runs before allocation. However, it fails to load runs for vcn0 when vcn0
 resides in a different segment than vcn. This causes run_lookup_entry() to return SPARSE_LCN for vcn0
 since its segment was never loaded into the in-memory run list, triggering the WARN_ON(1). Fix this by
 adding a missing check for vcn0 after the existing vcn segment check. If vcn0 falls outside the current
 segment range [svcn, evcn1), find and load the attribute segment containing vcn0 before performing the run
 lookup. The following scenario triggers the bug: attr_data_get_block_locked() vcn = vcn0 & cmask <- vcn !=
 vcn0 after frame alignment load runs for vcn segment <- vcn0 segment not loaded! attr_allocate_clusters()
 <- allocation succeeds run_lookup_entry(vcn0) <- vcn0 not in run -> SPARSE_LCN WARN_ON(1) <- bug fires
 here! (CVE-2026-53027)

Solution

Update the linux library and its related packages to version 6.12.96-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-53027

Plugin Details

Severity: Medium

ID: 464066

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.77

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-2026-53027

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

Patch Publication Date: 6/25/2026

Vulnerability Publication Date: 6/24/2026

Reference Information

CVE: CVE-2026-53027