Bug 2492793 (CVE-2026-53251) - CVE-2026-53251 kernel: Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync
Summary: CVE-2026-53251 kernel: Bluetooth: ISO: Fix not releasing hdev reference on is...
Keywords:
Status: NEW
Alias: CVE-2026-53251
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-25 10:06 UTC by OSIDB Bzimport
Modified: 2026-06-26 07:31 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-06-25 10:06:04 UTC 
In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync

hci_get_route() returns a reference-counted hci_dev pointer via
hci_dev_hold(). The function exits normally or with an error without ever
releasing it.
Comment 1 TEJ RATHI 2026-06-26 07:27:35 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062513-CVE-2026-53251-8ff0@gregkh/T
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