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Echo: linux: security update to 6.1.180-1

medium Tenable Self-Hosted Container Security Plugin ID 460213

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: mm: shrinker: fix NULL pointer
 dereference in debugfs shrinker_debugfs_add() creates both "count" and "scan" debugfs files
 unconditionally. That assumes every shrinker implements both count_objects() and scan_objects(), which is
 not guaranteed. For example, the xen-backend shrinker sets count_objects() but leaves scan_objects() NULL,
 so writing to its scan file calls through a NULL function pointer and panics the kernel: BUG: kernel NULL
 pointer dereference, address: 0000000000000000 RIP: 0010:0x0 Code: Unable to access opcode bytes at
 0xffffffffffffffd6. Call Trace: <TASK> shrinker_debugfs_scan_write+0x12e/0x270 full_proxy_write+0x5f/0x90
 vfs_write+0xde/0x420 ? filp_flush+0x75/0x90 ? filp_close+0x1d/0x30 ? do_dup2+0xb8/0x120
 ksys_write+0x68/0xf0 ? filp_flush+0x75/0x90 do_syscall_64+0xb3/0x5b0
 entry_SYSCALL_64_after_hwframe+0x76/0x7e The count path has the same issue in principle if a shrinker
 omits count_objects(). To fix it, only create "count" and "scan" debugfs files when the corresponding
 callbacks are present. (CVE-2026-64417)

Solution

Update the linux library and its related packages to version 6.1.180-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-64417

Plugin Details

Severity: Medium

ID: 460213

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.63

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-2026-64417

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: 7/26/2026

Vulnerability Publication Date: 7/23/2026

Reference Information

CVE: CVE-2026-64417