Vulnerability 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().
References
- https://git.kernel.org/stable/c/46884c0f92708f1d218fc94d88800227a19b52f8
- https://git.kernel.org/stable/c/6436e1b5331b1aebf905c13e0880a37032719b75
- https://git.kernel.org/stable/c/73a50c636425cb9f7ab647b5a97bd14dd5610076
- https://git.kernel.org/stable/c/ab0159b1f7214ce9bad9862751e4553e635a21b1
FAQ
What is CVE-2026-97976?
CVE-2026-97976 is a documented vulnerability. 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 witho...
How severe is CVE-2026-97976?
CVSS scoring is not yet available for CVE-2026-97976. Check NVD for updates.
Is there a patch for CVE-2026-97976?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.