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Echo: linux: security update to 6.12.3-1

medium Tenable Self-Hosted Container Security Plugin ID 463490

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: udmabuf: change folios array from
 kmalloc to kvmalloc When PAGE_SIZE 4096, MAX_PAGE_ORDER 10, 64bit machine, page_alloc only support 4MB. If
 above this, trigger this warn and return NULL. udmabuf can change size limit, if change it to 3072(3GB),
 and then alloc 3GB udmabuf, will fail create. [ 4080.876581] ------------[ cut here ]------------ [
 4080.876843] WARNING: CPU: 3 PID: 2015 at mm/page_alloc.c:4556 __alloc_pages+0x2c8/0x350 [ 4080.878839]
 RIP: 0010:__alloc_pages+0x2c8/0x350 [ 4080.879470] Call Trace: [ 4080.879473] <TASK> [ 4080.879473] ?
 __alloc_pages+0x2c8/0x350 [ 4080.879475] ? __warn.cold+0x8e/0xe8 [ 4080.880647] ?
 __alloc_pages+0x2c8/0x350 [ 4080.880909] ? report_bug+0xff/0x140 [ 4080.881175] ? handle_bug+0x3c/0x80 [
 4080.881556] ? exc_invalid_op+0x17/0x70 [ 4080.881559] ? asm_exc_invalid_op+0x1a/0x20 [ 4080.882077] ?
 udmabuf_create+0x131/0x400 Because MAX_PAGE_ORDER, kmalloc can max alloc 4096 * (1 << 10), 4MB memory,
 each array entry is pointer(8byte), so can save 524288 pages(2GB). Further more, costly order(order 3) may
 not be guaranteed that it can be applied for, due to fragmentation. This patch change udmabuf array use
 kvmalloc_array, this can fallback alloc into vmalloc, which can guarantee allocation for any size and does
 not affect the performance of kmalloc allocations. (CVE-2024-56544)

Solution

Update the linux library and its related packages to version 6.12.3-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2024-56544

Plugin Details

Severity: Medium

ID: 463490

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-2024-56544

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: 12/27/2024

Reference Information

CVE: CVE-2024-56544