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CVE-2025-23135

5.5 · MEDIUM
Published Apr 16, 2025 linux EPSS 0.18% (7th pctl)

Overview

CVE-2025-23135 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 16, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

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

RISC-V: KVM: Teardown riscv specific bits after kvm_exit

During a module removal, kvm_exit invokes arch specific disable

call which disables AIA. However, we invoke aia_exit before kvm_exit

resulting in the following warning. KVM kernel module can't be inserted

afterwards due to inconsistent state of IRQ.

[25469.031389] percpu IRQ 31 still enabled on CPU0!

[25469.031732] WARNING: CPU: 3 PID: 943 at kernel/irq/manage.c:2476 __free_percpu_irq+0xa2/0x150

[25469.031804] Modules linked in: kvm(-)

[25469.031848] CPU: 3 UID: 0 PID: 943 Comm: rmmod Not tainted 6.14.0-rc5-06947-g91c763118f47-dirty #2

[25469.031905] Hardware name: riscv-virtio,qemu (DT)

[25469.031928] epc : __free_percpu_irq+0xa2/0x150

[25469.031976] ra : __free_percpu_irq+0xa2/0x150

[25469.032197] epc : ffffffff8007db1e ra : ffffffff8007db1e sp : ff2000000088bd50

[25469.032241] gp : ffffffff8131cef8 tp : ff60000080b96400 t0 : ff2000000088baf8

[25469.032285

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 6.4, < 6.13.11 Affected

Frequently Asked Questions

What is CVE-2025-23135?

CVE-2025-23135 is a medium-severity vulnerability affecting linux linux_kernel. It was published on April 16, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-23135?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-23135?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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-2025-23135?

CyberStrike's AI-powered security agents can automatically detect CVE-2025-23135 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.