CVE-2026-97976Bluetooth: btintel_pcie: validate packet_len before skb_put_data
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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().
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from c2b636b3f788d10486a6691ad6dd3ec4c93bd78e before ab0159b1f7214ce9bad9862751e4553e635a21b1; from c2b636b3f788d10486a6691ad6dd3ec4c93bd78e before 73a50c636425cb9f7ab647b5a97bd14dd5610076; from c2b636b3f788d10486a6691ad6dd3ec4c93bd78e before 46884c0f92708f1d218fc94d88800227a19b52f8; from c2b636b3f788d10486a6691ad6dd3ec4c93bd78e before 6436e1b5331b1aebf905c13e0880a37032719b75 | CNA record |
References
- https://git.kernel.org/stable/c/ab0159b1f7214ce9bad9862751e4553e635a21b1
- https://git.kernel.org/stable/c/73a50c636425cb9f7ab647b5a97bd14dd5610076
- https://git.kernel.org/stable/c/46884c0f92708f1d218fc94d88800227a19b52f8
- https://git.kernel.org/stable/c/6436e1b5331b1aebf905c13e0880a37032719b75
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.