CVE-2026-80692

HighCVSS 8.8/10Last modified Oct 21, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks

There is theoretical UAF if the conn is freed while the hci_sync task is running.

Hold refcount to avoid that.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
LinuxLinux>= d948e1ffa1d40240d5c81af6dcbcb87b39cb8d3c, < f0a544ef6e38e4063d0ed72ad83d6bf0f4e70805; >= 881559af5f5c545f6828e7c74d79813eb886d523, < 301a4e2e89313dee10f0e8cb084daedbbe4a3dce; >= 881559af5f5c545f6828e7c74d79813eb886d523, < a4de6fc95b2f36967fc247ae51cad2171194f7cd; >= 881559af5f5c545f6828e7c74d79813eb886d523, < 9a77f296aff4b2ca5f2928ab3a3220c82d8b4074; >= 881559af5f5c545f6828e7c74d79813eb886d523, < 2f5d635ad5906b0235bc0c870e8beba3116e1e98; 5dd0bd277a0a936708a33ecc447dce77a08cbde6; >= 6.6.51, < 6.6.160; >= 6.8.9, < 6.9
LinuxLinux6.9

References

Timeline

Published
Aug 28, 2026
Last modified
Oct 21, 2026
NVD status
Received

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CVE-2026-80692: High severity, CVSS 8.8 | Vulnix