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Echo: linux: security update to 6.1.176-1

high Tenable Cloud Security Plugin ID 459961

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: f2fs: compress: fix UAF of
 f2fs_inode_info in f2fs_free_dic The decompress_io_ctx may be released asynchronously after I/O
 completion. If this file is deleted immediately after read, and the kworker of processing post_read_wq has
 not been executed yet due to high workloads, It is possible that the inode(f2fs_inode_info) is evicted and
 freed before it is used f2fs_free_dic. The UAF case as below: Thread A Thread B - f2fs_decompress_end_io -
 f2fs_put_dic - queue_work add free_dic work to post_read_wq - do_unlink - iput - evict - call_rcu This
 file is deleted after read. Thread C kworker to process post_read_wq - rcu_do_batch - f2fs_free_inode -
 kmem_cache_free inode is freed by rcu - process_scheduled_works - f2fs_late_free_dic - f2fs_free_dic -
 f2fs_release_decomp_mem read (dic->inode)->i_compress_algorithm This patch store compress_algorithm and
 sbi in dic to avoid inode UAF. In addition, the previous solution is deprecated in [1] may cause system
 hang. [1] https://lore.kernel.org/all/[email protected] (CVE-2025-38627)

Solution

Update the linux library and its related packages to version 6.1.176-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-38627

Plugin Details

Severity: High

ID: 459961

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.29

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2025-38627

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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

Patch Publication Date: 9/15/2025

Vulnerability Publication Date: 8/22/2025

Reference Information

CVE: CVE-2025-38627