CVE-2026-97976Bluetooth: btintel_pcie: validate packet_len before skb_put_data
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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().
Timeline
ID reserved
By Linux
Published
- 24 days later
· 24 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected c2b636b3f788d10486a6691ad6dd3ec4c93bd78e – < ab0159b1f7214ce9bad9862751e4553e635a21b1
- affected c2b636b3f788d10486a6691ad6dd3ec4c93bd78e – < 73a50c636425cb9f7ab647b5a97bd14dd5610076
- affected c2b636b3f788d10486a6691ad6dd3ec4c93bd78e – < 46884c0f92708f1d218fc94d88800227a19b52f8
- affected c2b636b3f788d10486a6691ad6dd3ec4c93bd78e – < 6436e1b5331b1aebf905c13e0880a37032719b75
- affected 6.10
- unaffected < 6.10
- unaffected 6.12.111 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/ab0159b1f7214ce9bad9862751e4553e635a21b1 (opens in a new tab)
- https://git.kernel.org/stable/c/73a50c636425cb9f7ab647b5a97bd14dd5610076 (opens in a new tab)
- https://git.kernel.org/stable/c/46884c0f92708f1d218fc94d88800227a19b52f8 (opens in a new tab)
- https://git.kernel.org/stable/c/6436e1b5331b1aebf905c13e0880a37032719b75 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86630 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-97976)Record last updated .