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Echo: linux: security update to 6.1.170-1

medium Tenable Self-Hosted Container Security Plugin ID 462806

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: erofs: handle overlapped pclusters out
 of crafted images properly syzbot reported a task hang issue due to a deadlock case where it is waiting
 for the folio lock of a cached folio that will be used for cache I/Os. After looking into the crafted
 fuzzed image, I found it's formed with several overlapped big pclusters as below: Ext: logical offset |
 length : physical offset | length 0: 0.. 16384 | 16384 : 151552.. 167936 | 16384 1: 16384.. 32768 | 16384
 : 155648.. 172032 | 16384 2: 32768.. 49152 | 16384 : 537223168.. 537239552 | 16384 ... Here, extent 0/1
 are physically overlapped although it's entirely _impossible_ for normal filesystem images generated by
 mkfs. First, managed folios containing compressed data will be marked as up-to-date and then unlocked
 immediately (unlike in-place folios) when compressed I/Os are complete. If physical blocks are not
 submitted in the incremental order, there should be separate BIOs to avoid dependency issues. However, the
 current code mis-arranges z_erofs_fill_bio_vec() and BIO submission which causes unexpected BIO waits.
 Second, managed folios will be connected to their own pclusters for efficient inter-queries. However, this
 is somewhat hard to implement easily if overlapped big pclusters exist. Again, these only appear in fuzzed
 images so let's simply fall back to temporary short-lived pages for correctness. Additionally, it
 justifies that referenced managed folios cannot be truncated for now and reverts part of commit
 2080ca1ed3e4 ("erofs: tidy up `struct z_erofs_bvec`") for simplicity although it shouldn't be any
 difference. (CVE-2024-47736)

Solution

Update the linux library and its related packages to version 6.1.170-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2024-47736

Plugin Details

Severity: Medium

ID: 462806

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

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-2024-47736

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: 9/15/2025

Vulnerability Publication Date: 10/21/2024

Reference Information

CVE: CVE-2024-47736