CVE-2023-53828

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb747a83690c8f53bc7a3f75899415c699b2c51aa < 81d8e9f59df63b8358751c1ffed9f1cf5c796909affected
LinuxLinuxb747a83690c8f53bc7a3f75899415c699b2c51aa < aafda69d4807f5edf3558c9534be9b911774e63aaffected
LinuxLinuxb747a83690c8f53bc7a3f75899415c699b2c51aa < 8d66f7ced51cb924bc90278d6a0a26a52877271aaffected
LinuxLinuxb747a83690c8f53bc7a3f75899415c699b2c51aa < a2bcd2b63271a93a695fabbfbf459c603d956d48affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.53 <= 6.1.*unaffected
LinuxLinux6.4.16 <= 6.4.*unaffected
LinuxLinux6.5.3 <= 6.5.*unaffected
LinuxLinux6.6 <= *unaffected

Weaknesses

References