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CVE-2026-97976

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel_pcie: validate packet_len before skb_put_data btintel_pcie_submit_rx_work() reads packet_len from rfh_hdr wi…

Published Sep 25, 2026EPSS 0.17%

Overview

CVE-2026-97976 is a known-severity vulnerability. It was published on September 25, 2026.

Technical description

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

Bluetooth: btintel_pcie: validate packet_len before skb_put_data

btintel_pcie_submit_rx_work() reads packet_len from rfh_hdr without

checking if it exceeds the RX buffer size. An oversized packet_len

can lead to an out-of-bounds read in skb_put_data().

Validate packet_len to ensure it is non-zero and does not exceed

BTINTEL_PCIE_BUFFER_SIZE - sizeof(*rfh_hdr), logging an error when

invalid.

This issue was reported by Claude Mythos. It can be simulated either by

using customized firmware configured to return an invalid packet_len or

by modifying rfh_hdr->packet_len in the driver before calling

btintel_pcie_submit_rx_work().

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.

Frequently asked questions

What is CVE-2026-97976?

CVE-2026-97976 is a known-severity vulnerability. It was published on September 25, 2026.

How severe is CVE-2026-97976?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-97976?

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-2026-97976?

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