Detections
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Echo: linux: security update to 6.1.180-1

high Tenable Cloud Security Plugin ID 460325

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: NFSv4/flexfiles: reject zero
 filehandle version count ff_layout_alloc_lseg() decodes the filehandle-version array count from the
 flexfiles layout body. The value is used as the count for kzalloc_objs(), and the current code only
 rejects NULL. A zero count yields ZERO_SIZE_PTR, which can be stored in dss_info->fh_versions even though
 later flexfiles paths assume that at least one filehandle version exists. Reject fh_count == 0 before the
 allocation, matching the existing zero version_count validation in the flexfiles GETDEVICEINFO parser. A
 QEMU/KASAN run with a malformed flexfiles layout hit: KASAN: null-ptr-deref in range
 [0x0000000000000010-0x0000000000000017] RIP: 0010:ff_layout_encode_ff_layoutupdate.isra.0+0x15f/0x750
 ff_layout_encode_layoutreturn+0x683/0x970 nfs4_xdr_enc_layoutreturn+0x278/0x3a0 Kernel panic - not
 syncing: Fatal exception The patched kernel rejects the malformed layout without KASAN/oops/panic, and a
 valid fh_count=1 regression still opens, reads, and unmounts cleanly. (CVE-2026-53392)

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-2026-53392

Plugin Details

Severity: High

ID: 460325

Version: Revision 1.2

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-53392

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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: 7/19/2026

Vulnerability Publication Date: 7/19/2026

Reference Information

CVE: CVE-2026-53392