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Echo: linux: security update to 6.3.7-1

medium Tenable Self-Hosted Container Security Plugin ID 465485

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: avoid deadlock in fs reclaim
 with page writeback Ext4 has a filesystem wide lock protecting ext4_writepages() calls to avoid races with
 switching of journalled data flag or inode format. This lock can however cause a deadlock like: CPU0 CPU1
 ext4_writepages() percpu_down_read(sbi->s_writepages_rwsem); ext4_change_inode_journal_flag()
 percpu_down_write(sbi->s_writepages_rwsem); - blocks, all readers block from now on ext4_do_writepages()
 ext4_init_io_end() kmem_cache_zalloc(io_end_cachep, GFP_KERNEL) fs_reclaim frees dentry...
 dentry_unlink_inode() iput() - last ref => iput_final() - inode dirty => write_inode_now()...
 ext4_writepages() tries to acquire sbi->s_writepages_rwsem and blocks forever Make sure we cannot recurse
 into filesystem reclaim from writeback code to avoid the deadlock. (CVE-2023-53149)

Solution

Update the linux library and its related packages to version 6.3.7-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2023-53149

Plugin Details

Severity: Medium

ID: 465485

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

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-2023-53149

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: 9/16/2025

Vulnerability Publication Date: 9/15/2025

Reference Information

CVE: CVE-2023-53149