CVE-2026-80763Bluetooth: hci_event: validate LE Set CIG Parameters response
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In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: validate LE Set CIG Parameters response The Command Complete dispatch validates only the fixed part of the LE Set CIG Parameters response. After that part is pulled from the skb, hci_cc_le_set_cig_params() trusts num_handles and reads each entry in the trailing handle array. Matching num_handles against the command's num_cis does not guarantee that the response contains the advertised handles. A truncated response from a malfunctioning controller can therefore make the handler read beyond the skb data. Validate that the remaining skb data contains all advertised handles. Include this in the existing response validation so malformed responses also follow the established CIG failure handling.
- 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
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 26afbd826ee326e63a334c37fd45e82e50a615ec builds before 9e05783d0bb96a7b853cc058a7c7de2dc4a62154; from 26afbd826ee326e63a334c37fd45e82e50a615ec before 26741d178f31932c9018b36b7953e6dc391436a4; from 26afbd826ee326e63a334c37fd45e82e50a615ec before a34df5c4a439cfc04565fa5be608ed1e53134f1f; from 26afbd826ee326e63a334c37fd45e82e50a615ec before e3f82e8f2a5915f533b57a065e9a045aa2ee03bc; from 26afbd826ee326e63a334c37fd45e82e50a615ec before d83ecb7b96105d932dabaa56ccd7418c25fb7cbb; 26afbd826ee326e63a334c37fd45e82e50a615ec builds before 6fc540e835dddb518cef3ff522b780f701cd03df; 26afbd826ee326e63a334c37fd45e82e50a615ec builds before 0acd4eeb4b225b9bebbf9ef96cc10cdd79b94899 | CNA record |
References
- https://git.kernel.org/stable/c/9e05783d0bb96a7b853cc058a7c7de2dc4a62154
- https://git.kernel.org/stable/c/26741d178f31932c9018b36b7953e6dc391436a4
- https://git.kernel.org/stable/c/a34df5c4a439cfc04565fa5be608ed1e53134f1f
- https://git.kernel.org/stable/c/e3f82e8f2a5915f533b57a065e9a045aa2ee03bc
- https://git.kernel.org/stable/c/d83ecb7b96105d932dabaa56ccd7418c25fb7cbb
- https://git.kernel.org/stable/c/6fc540e835dddb518cef3ff522b780f701cd03df
- https://git.kernel.org/stable/c/0acd4eeb4b225b9bebbf9ef96cc10cdd79b94899
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.