Bug 2525495 (CVE-2026-80692) - CVE-2026-80692 kernel: Bluetooth: hci_sync: hold conn in hci_connect_acl/le_sync() callbacks
Summary: CVE-2026-80692 kernel: Bluetooth: hci_sync: hold conn in hci_connect_acl/le_s...
Keywords:
Status: NEW
Alias: CVE-2026-80692
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-28 07:47 UTC by OSIDB Bzimport
Modified: 2026-09-03 15:56 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-08-28 07:47:57 UTC 
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.
Comment 1 gkamathe 2026-08-31 16:24:16 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026082804-CVE-2026-80692-062d@gregkh/T
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