Detections
Analytics

Echo: linux: security update to 6.4.11-1

medium Tenable Self-Hosted Container Security Plugin ID 461234

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: Fix detection of atomic context
 Current check for atomic context is not sufficient as z_erofs_decompressqueue_endio can be called under
 rcu lock from blk_mq_flush_plug_list(). See the stacktrace [1] In such case we should hand off the
 decompression work for async processing rather than trying to do sync decompression in current context.
 Patch fixes the detection by checking for rcu_read_lock_any_held() and while at it use more appropriate
 !in_task() check than in_atomic(). Background: Historically erofs would always schedule a kworker for
 decompression which would incur the scheduling cost regardless of the context. But
 z_erofs_decompressqueue_endio() may not always be in atomic context and we could actually benefit from
 doing the decompression in z_erofs_decompressqueue_endio() if we are in thread context, for example when
 running with dm-verity. This optimization was later added in patch [2] which has shown improvement in
 performance benchmarks. ============================================== [1] Problem stacktrace
 [name:core&]BUG: sleeping function called from invalid context at kernel/locking/mutex.c:291
 [name:core&]in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 1615, name: CpuMonitorServi
 [name:core&]preempt_count: 0, expected: 0 [name:core&]RCU nest depth: 1, expected: 0 CPU: 7 PID: 1615
 Comm: CpuMonitorServi Tainted: G S W OE 6.1.25-android14-5-maybe-dirty-mainline #1 Hardware name: MT6897
 (DT) Call trace: dump_backtrace+0x108/0x15c show_stack+0x20/0x30 dump_stack_lvl+0x6c/0x8c
 dump_stack+0x20/0x48 __might_resched+0x1fc/0x308 __might_sleep+0x50/0x88 mutex_lock+0x2c/0x110
 z_erofs_decompress_queue+0x11c/0xc10 z_erofs_decompress_kickoff+0x110/0x1a4
 z_erofs_decompressqueue_endio+0x154/0x180 bio_endio+0x1b0/0x1d8 __dm_io_complete+0x22c/0x280
 clone_endio+0xe4/0x280 bio_endio+0x1b0/0x1d8 blk_update_request+0x138/0x3a4
 blk_mq_plug_issue_direct+0xd4/0x19c blk_mq_flush_plug_list+0x2b0/0x354 __blk_flush_plug+0x110/0x160
 blk_finish_plug+0x30/0x4c read_pages+0x2fc/0x370 page_cache_ra_unbounded+0xa4/0x23c
 page_cache_ra_order+0x290/0x320 do_sync_mmap_readahead+0x108/0x2c0 filemap_fault+0x19c/0x52c
 __do_fault+0xc4/0x114 handle_mm_fault+0x5b4/0x1168 do_page_fault+0x338/0x4b4
 do_translation_fault+0x40/0x60 do_mem_abort+0x60/0xc8 el0_da+0x4c/0xe0 el0t_64_sync_handler+0xd4/0xfc
 el0t_64_sync+0x1a0/0x1a4 [2] Link:
 https://lore.kernel.org/all/[email protected]/ (CVE-2023-53231)

Solution

Update the linux library and its related packages to version 6.4.11-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2023-53231

Plugin Details

Severity: Medium

ID: 461234

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.15

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-2023-53231

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-2023-53231