CVE-2026-97976: Linux kernel · Bluetooth: btintel_pcie: validate packet_len before skb_put_data
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 12:55 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix has been implemented to validate the packet_len before processing, ensuring it is within acceptable bounds and logging errors for invalid values. Users should apply the official patches or updates provided for the affected linux-hwe-edge kernel versions to remediate this vulnerability.
Description
A vulnerability in the Linux kernel Bluetooth driver btintel_pcie was resolved. The issue involved the function btintel_pcie_submit_rx_work() reading a packet length value without validating if it exceeded the receive buffer size, potentially causing an out-of-bounds read. The fix adds validation to ensure the packet length is non-zero and does not exceed the buffer size, logging an error if invalid. This vulnerability affects specific linux-hwe-edge kernel versions.
References
- ubuntu.com/security/CVE-2026-97976 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97976 (opens in a new tab)
- git.kernel.org/stable/c/6436e1b5331b1aebf905c13e0880a37032719b75 (opens in a new tab)
- git.kernel.org/stable/c/73a50c636425cb9f7ab647b5a97bd14dd5610076 (opens in a new tab)
- git.kernel.org/stable/c/ab0159b1f7214ce9bad9862751e4553e635a21b1 (opens in a new tab)
- git.kernel.org/stable/c/46884c0f92708f1d218fc94d88800227a19b52f8 (opens in a new tab)