Google: sys-kernel/csql-kernel-6_12, sys-kernel/csql-kernel-6_6: security update to 19216.0.12

medium Tenable Self-Hosted Container Security Plugin ID 468738

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: KVM: x86/hyper-v: Skip non-canonical
addresses during PV TLB flush In KVM guests with Hyper-V hypercalls enabled, the hypercalls
HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST and HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX allow a guest to request
invalidation of portions of a virtual TLB. For this, the hypercall parameter includes a list of GVAs that
are supposed to be invalidated. However, when non-canonical GVAs are passed, there is currently no
filtering in place and they are eventually passed to checked invocations of INVVPID on Intel / INVLPGA on
AMD. While AMD's INVLPGA silently ignores non-canonical addresses (effectively a no-op), Intel's INVVPID
explicitly signals VM-Fail and ultimately triggers the WARN_ONCE in invvpid_error(): invvpid failed:
ext=0x0 vpid=1 gva=0xaaaaaaaaaaaaa000 WARNING: CPU: 6 PID: 326 at arch/x86/kvm/vmx/vmx.c:482
invvpid_error+0x91/0xa0 [kvm_intel] Modules linked in: kvm_intel kvm 9pnet_virtio irqbypass fuse CPU: 6
UID: 0 PID: 326 Comm: kvm-vm Not tainted 6.15.0 #14 PREEMPT(voluntary) RIP: 0010:invvpid_error+0x91/0xa0
[kvm_intel] Call Trace: vmx_flush_tlb_gva+0x320/0x490 [kvm_intel] kvm_hv_vcpu_flush_tlb+0x24f/0x4f0 [kvm]
kvm_arch_vcpu_ioctl_run+0x3013/0x5810 [kvm] Hyper-V documents that invalid GVAs (those that are beyond a
partition's GVA space) are to be ignored. While not completely clear whether this ruling also applies to
non-canonical GVAs, it is likely fine to make that assumption, and manual testing on Azure confirms "real"
Hyper-V interprets the specification in the same way. Skip non-canonical GVAs when processing the list of
address to avoid tripping the INVVPID failure. Alternatively, KVM could filter out "bad" GVAs before
inserting into the FIFO, but practically speaking the only downside of pushing validation to the final
processing is that doing so is suboptimal for the guest, and no well-behaved guest will request TLB
flushes for non-canonical addresses. (CVE-2025-38351)

Solution

Update the sys-kernel/csql-kernel-6_12 library and its related packages to version 19216.0.12 or later.

Plugin Details

Severity: Medium

ID: 468738

Version: Revision 1.8

Type: Local

Family: Google COS Security Checks

Published: 10/3/2026

Updated: 10/7/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.28

Vendor

Vendor Severity: LOW

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-2025-38351

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

Reference Information

CVE: CVE-2025-38351

Detections

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