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CVE-2023-53828

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CVE-2023-53828

Published: Dec 9, 2025

Modified: May 11, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
b747a83690c8f53bc7a3f75899415c699b2c51aa - < 81d8e9f59df63b8358751c1ffed9f1cf5c796909
affected
b747a83690c8f53bc7a3f75899415c699b2c51aa - < aafda69d4807f5edf3558c9534be9b911774e63a
affected
b747a83690c8f53bc7a3f75899415c699b2c51aa - < 8d66f7ced51cb924bc90278d6a0a26a52877271a
affected
b747a83690c8f53bc7a3f75899415c699b2c51aa - < a2bcd2b63271a93a695fabbfbf459c603d956d48

Linux

Linux

affected
6.0
unaffected
0 - < 6.0
unaffected
6.1.53 - <= 6.1.*
unaffected
6.4.16 - <= 6.4.*
unaffected
6.5.3 - <= 6.5.*

+1 more versions

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