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Echo: linux: security update to 6.1.176-1

critical Tenable Self-Hosted Container Security Plugin ID 462969

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: net: mvpp2: limit XDP frame size to
 the RX buffer mvpp2 has short and long BM pools, and short pool buffers can be smaller than PAGE_SIZE. The
 XDP path nevertheless initializes every xdp_buff with PAGE_SIZE as frame size. XDP helpers use frame_sz to
 validate tail growth and to derive the hard end of the data area. Advertising PAGE_SIZE for short buffers
 can let bpf_xdp_adjust_tail() grow a packet past the real allocation, corrupting memory or later tripping
 skb tailroom checks. Initialize the XDP buffer with bm_pool->frag_size so XDP tailroom matches the actual
 buffer backing the packet. (CVE-2026-53216)

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-2026-53216

Plugin Details

Severity: Critical

ID: 462969

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.84

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-53216

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 6/25/2026

Vulnerability Publication Date: 6/25/2026

Reference Information

CVE: CVE-2026-53216