CVE-2023-53828
Linux Kernel 6.0-6.1.52, 6.2-6.4.15, 6.5.0-6.5.2 - Use-After-Free in Bluetooth Adv Monitor Debug Logging
Title source: llmDescription
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.
References (4)
Core 4
Core References
Scores
EPSS
0.0022
EPSS Percentile
12.4%
Details
Status
published
Products (13)
linux/Kernel
6.0.0 - 6.1.53linux
linux/Kernel
6.2.0 - 6.4.16linux
linux/Kernel
6.5.0 - 6.5.3linux
Linux/Linux
< 6.0
Linux/Linux
6.0
Linux/Linux
6.1.53 - 6.1.*
Linux/Linux
6.4.16 - 6.4.*
Linux/Linux
6.5.3 - 6.5.*
Linux/Linux
6.6
Linux/Linux
b747a83690c8f53bc7a3f75899415c699b2c51aa - 81d8e9f59df63b8358751c1ffed9f1cf5c796909
... and 3 more
Published
Dec 09, 2025
Tracked Since
Feb 18, 2026