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CVE-2023-53828
Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor()
Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor() KSAN reports use-after-free in hci_add_adv_monitor(). While adding an adv monitor, hci_add_adv_monitor() calls -> msft_add_monitor_pattern() calls -> msft_add_monitor_sync() calls -> msft_le_monitor_advertisement_cb() calls in an error case -> hci_free_adv_monitor() which frees the *moniter. This is referenced by bt_dev_dbg() in hci_add_adv_monitor(). Fix the bt_dev_dbg() by using handle instead of monitor->handle.

INFO

Published Date :

Dec. 9, 2025, 4:17 p.m.

Last Modified :

Dec. 9, 2025, 6:37 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2023-53828 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.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Update the Linux kernel to patch a use-after-free vulnerability in Bluetooth.
  • Update the Linux kernel to the latest version.
  • Apply the specific patch for this Bluetooth vulnerability.
  • Recompile the kernel if necessary.
  • Reboot the system after updating.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-53828.

URL Resource
https://git.kernel.org/stable/c/81d8e9f59df63b8358751c1ffed9f1cf5c796909
https://git.kernel.org/stable/c/8d66f7ced51cb924bc90278d6a0a26a52877271a
https://git.kernel.org/stable/c/a2bcd2b63271a93a695fabbfbf459c603d956d48
https://git.kernel.org/stable/c/aafda69d4807f5edf3558c9534be9b911774e63a
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-53828 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-53828 weaknesses.

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-2023-53828 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-53828 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 09, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_add_adv_monitor() KSAN reports use-after-free in hci_add_adv_monitor(). While adding an adv monitor, hci_add_adv_monitor() calls -> msft_add_monitor_pattern() calls -> msft_add_monitor_sync() calls -> msft_le_monitor_advertisement_cb() calls in an error case -> hci_free_adv_monitor() which frees the *moniter. This is referenced by bt_dev_dbg() in hci_add_adv_monitor(). Fix the bt_dev_dbg() by using handle instead of monitor->handle.
    Added Reference https://git.kernel.org/stable/c/81d8e9f59df63b8358751c1ffed9f1cf5c796909
    Added Reference https://git.kernel.org/stable/c/8d66f7ced51cb924bc90278d6a0a26a52877271a
    Added Reference https://git.kernel.org/stable/c/a2bcd2b63271a93a695fabbfbf459c603d956d48
    Added Reference https://git.kernel.org/stable/c/aafda69d4807f5edf3558c9534be9b911774e63a
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.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.