Google: sys-kernel/csql-kernel-6_1: security update to 18244.382.3

medium Tenable Self-Hosted Container Security Plugin ID 451804

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: reenable NETIF_F_IPV6_CSUM
offload for BIG TCP packets The blamed commit disabled hardware offoad of IPv6 packets with extension
headers on devices that advertise NETIF_F_IPV6_CSUM, based on the definition of that feature in skbuff.h:
* * - %NETIF_F_IPV6_CSUM * - Driver (device) is only able to checksum plain * TCP or UDP packets over
IPv6. These are specifically * unencapsulated packets of the form IPv6|TCP or * IPv6|UDP where the Next
Header field in the IPv6 * header is either TCP or UDP. IPv6 extension headers * are not supported with
this feature. This feature * cannot be set in features for a device with * NETIF_F_HW_CSUM also set. This
feature is being * DEPRECATED (see below). The change causes skb_warn_bad_offload to fire for BIG TCP
packets. [ 496.310233] WARNING: CPU: 13 PID: 23472 at net/core/dev.c:3129 skb_warn_bad_offload+0xc4/0xe0 [
496.310297] ? skb_warn_bad_offload+0xc4/0xe0 [ 496.310300] skb_checksum_help+0x129/0x1f0 [ 496.310303]
skb_csum_hwoffload_help+0x150/0x1b0 [ 496.310306] validate_xmit_skb+0x159/0x270 [ 496.310309]
validate_xmit_skb_list+0x41/0x70 [ 496.310312] sch_direct_xmit+0x5c/0x250 [ 496.310317]
__qdisc_run+0x388/0x620 BIG TCP introduced an IPV6_TLV_JUMBO IPv6 extension header to communicate packet
length, as this is an IPv6 jumbogram. But, the feature is only enabled on devices that support BIG TCP
TSO. The header is only present for PF_PACKET taps like tcpdump, and not transmitted by physical devices.
For this specific case of extension headers that are not transmitted, return to the situation before the
blamed commit and support hardware offload. ipv6_has_hopopt_jumbo() tests not only whether this header is
present, but also that it is the only extension header before a terminal (L4) header. (CVE-2025-21629)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18244.382.3 or later.

Plugin Details

Severity: Medium

ID: 451804

Version: Revision 1.1

Type: Local

Family: Google COS Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

Vendor

Vendor Severity: MEDIUM

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-2025-21629

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

Vulnerability Publication Date: 1/15/2025

Reference Information

CVE: CVE-2025-21629

Detections

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