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CVE-2026-89947

8.0 · HIGH

In the Linux kernel, the following vulnerability has been resolved: clk: meson: align gxbb_32k_clk_sel number of parents with actual count The following out-of-bounds read has been observed by Ch…

Published Sep 16, 2026EPSS 0.18%

Overview

CVE-2026-89947 is a high-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 8.0 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

clk: meson: align gxbb_32k_clk_sel number of parents with actual count

The following out-of-bounds read has been observed by Christian on a

GXBB WeTek Hub:

==================================================================

BUG: KASAN: global-out-of-bounds in __clk_register+0x1b70/0x2418

Read of size 8 at addr ffffd66320cf88e0 by task swapper/0/1

CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 7.0.0-rc5 #1 PREEMPT

Hardware name: WeTek Hub (DT)

Call trace:

show_stack+0x14/0x20 (C)

dump_stack_lvl+0x74/0x94

print_report+0x164/0x4b0

kasan_report+0x98/0xd8

__asan_report_load8_noabort+0x1c/0x24

__clk_register+0x1b70/0x2418

devm_clk_hw_register+0x74/0x15c

meson_clkc_init+0xd4/0x20c

meson_clkc_syscon_probe+0x5c/0x94

platform_probe+0xbc/0x17c

really_probe+0x184/0x844

__driver_probe_device+0x154/0x35c

driver_probe_device+0x60/0x188

__driver_attach+0x168/0x4a0

bus_for_each_dev+0xec/0x180

driver_attach+0x38/0x58

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/1e509a6707d2fd9da79bdfa24742661b34562bfdRefgit.kernel.org/stable/c/404079d124d75a5da16322acc53d3ffc50b4ec68Refgit.kernel.org/stable/c/4582949b7badcb91bb537ca522d69b8a35131e72Refgit.kernel.org/stable/c/628b6fee9fca292f12d07f0f1bcf1edefa949d81Refgit.kernel.org/stable/c/8b2f7a411e7ceaef268355c2150c22ee3f509c3bRefgit.kernel.org/stable/c/bf85bd6e550c17ffa585606fcc18eb5b7c95bbceRefgit.kernel.org/stable/c/c86214e6178c38a0eff39110a4e92b824f5dd403Refgit.kernel.org/stable/c/f6ff0e6995dbff5cb145d7795c8f0af9c168094a

How CyberStrike helps

Frequently asked questions

What is CVE-2026-89947?

CVE-2026-89947 is a high-severity vulnerability. It was published on September 16, 2026 and has a CVSS 3.1 base score of 8.0 (HIGH).

How severe is CVE-2026-89947?

This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-89947?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-89947?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-89947 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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