0.0
NA
CVE-2026-53251
Bluetooth: ISO: Fix not releasing hdev reference on iso_conn_big_sync
Description

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.

INFO

Published Date :

June 25, 2026, 8:39 a.m.

Last Modified :

June 25, 2026, 8:39 a.m.

Remotely Exploit :

No

Source :

Linux
Affected Products

The following products are affected by CVE-2026-53251 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

Solution
Fix resource leak by releasing held device references in Bluetooth ISO handling.
  • Apply the patch to release the hci_dev reference.
  • Update the Linux kernel to the fixed version.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-53251 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.