Detections
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Chainguard: multiple linux-gcp-6.18-bootc packages: security update to 6.18.38-r2

critical Tenable Cloud Security Plugin ID 473059

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: ti: icssg-prueth: fix use-after-
 free of CPPI descriptor in RX path cppi5_hdesc_get_psdata() returns a pointer into the CPPI descriptor. In
 both emac_rx_packet() and emac_rx_packet_zc(), the descriptor is freed via k3_cppi_desc_pool_free() before
 the psdata pointer is used by emac_rx_timestamp(), which dereferences psdata[0] and psdata[1]. This
 constitutes a use-after-free on every received packet that goes through the timestamp path. Defer the
 descriptor free until after all accesses through the psdata pointer are complete. For emac_rx_packet(),
 move the free into the requeue label so both early-exit and success paths free the descriptor after all
 accesses are done. For emac_rx_packet_zc(), move the free to the end of the loop body after
 emac_dispatch_skb_zc() (which calls emac_rx_timestamp()) has returned. (CVE-2026-31501)

Solution

Update the linux-gcp-6.18-bootc library and its related packages to version 6.18.38-r2 or later.

Plugin Details

Severity: Critical

ID: 473059

Version: Revision 1.2

Type: Local

Published: 10/6/2026

Updated: 10/8/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.75

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-2026-31501

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

Vulnerability Publication Date: 4/22/2026

Reference Information

CVE: CVE-2026-31501