Google: sys-kernel/csql-kernel-6_1, sys-kernel/csql-kernel-6_6, sys-kernel/lakitu-kernel-6_1, 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 Cloud Security Plugin ID 466334

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, arm64: Fix off-by-one in
check_imm signed range check check_imm(bits, imm) is used in the arm64 BPF JIT to verify that a branch
displacement (in arm64 instruction units) fits into the signed N-bit immediate field of a B, B.cond or
CBZ/CBNZ encoding before it is handed to the encoder. The macro currently tests for (imm > 0 && imm >>
bits) || (imm < 0 && ~imm >> bits) which admits values in [-2^N, 2^N) — effectively a signed (N+1)-bit
range. A signed N-bit field only holds [-2^(N-1), 2^(N-1)), so the check admits one extra bit of range on
each side. In particular, for check_imm19(), values in [2^18, 2^19) slip past the check but do not fit
into the 19-bit signed imm19 field of B.cond. aarch64_insn_encode_immediate() then masks the raw value
into the 19-bit field, setting bit 18 (the sign bit) and flipping a forward branch into a backward one.
Same class of issue exists for check_imm26() and the B/BL encoding. Shift by (bits - 1) instead of bits so
the actual signed N-bit range is enforced. (CVE-2026-53036)

Solution

Update the sys-kernel/csql-kernel-6_1 library and its related packages to version 18613.613.77 or later.

Plugin Details

Severity: High

ID: 466334

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: 6.9

Percentile: 96.76

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-2026-53036

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: 6/3/2026

Reference Information

CVE: CVE-2026-53036

Detections

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