Google: sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_6, sys-kernel/lakitu-nc-kernel-6_6, sys-kernel/lakitu-vgpu-kernel-6_6, sys-kernel/tpusev-kernel-6_6: security update to 18613.613.77

high Tenable Self-Hosted Container Security Plugin ID 466734

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: bpf: Fix stale offload->prog pointer
after constant blinding When a dev-bound-only BPF program (BPF_F_XDP_DEV_BOUND_ONLY) undergoes JIT
compilation with constant blinding enabled (bpf_jit_harden >= 2), bpf_jit_blind_constants() clones the
program. The original prog is then freed in bpf_jit_prog_release_other(), which updates aux->prog to point
to the surviving clone, but fails to update offload->prog. This leaves offload->prog pointing to the freed
original program. When the network namespace is subsequently destroyed, cleanup_net() triggers
bpf_dev_bound_netdev_unregister(), which iterates ondev->progs and calls
__bpf_prog_offload_destroy(offload->prog). Accessing the freed prog causes a page fault: BUG: unable to
handle page fault for address: ffffc900085f1038 Workqueue: netns cleanup_net RIP:
0010:__bpf_prog_offload_destroy+0xc/0x80 Call Trace: __bpf_offload_dev_netdev_unregister+0x257/0x350
bpf_dev_bound_netdev_unregister+0x4a/0x90 unregister_netdevice_many_notify+0x2a2/0x660 ...
cleanup_net+0x21a/0x320 The test sequence that triggers this reliably is: 1. Set net.core.bpf_jit_harden=2
(echo 2 > /proc/sys/net/core/bpf_jit_harden) 2. Run xdp_metadata selftest, which creates a dev-bound-only
XDP program on a veth inside a netns (./test_progs -t xdp_metadata) 3. cleanup_net -> page fault in
__bpf_prog_offload_destroy Dev-bound-only programs are unique in that they have an offload structure but
go through the normal JIT path instead of bpf_prog_offload_compile(). This means they are subject to
constant blinding's prog clone-and-replace, while also having offload->prog that must stay in sync. Fix
this by updating offload->prog in bpf_jit_prog_release_other(), alongside the existing aux->prog update.
Both are back-pointers to the prog that must be kept in sync when the prog is replaced. (CVE-2026-53094)

Solution

Update the sys-kernel/csql-kernel-6_6 library and its related packages to version 18613.613.77 or later.

Plugin Details

Severity: High

ID: 466734

Version: Revision 1.3

Type: Local

Family: Google COS Security Checks

Published: 10/2/2026

Updated: 10/3/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.27

Vendor

Vendor Severity: HIGH

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-53094

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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: 6/22/2026

Reference Information

CVE: CVE-2026-53094

Detections

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