CVE-2023-53828
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.
How to fix
- Linux Linux81d8e9f59df63b8358751c1ffed9f1cf5c796909, aafda69d4807f5edf3558c9534be9b911774e63a, 8d66f7ced51cb924bc90278d6a0a26a52877271a, a2bcd2b63271a93a695fabbfbf459c603d956d48 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | b747a83690c8f53bc7a3f75899415c699b2c51aa ≤ v < 81d8e9f59df63b8358751c1ffed9f1cf5c796909, b747a83690c8f53bc7a3f75899415c699b2c51aa ≤ v < aafda69d4807f5edf3558c9534be9b911774e63a, b747a83690c8f53bc7a3f75899415c699b2c51aa ≤ v < 8d66f7ced51cb924bc90278d6a0a26a52877271a, b747a83690c8f53bc7a3f75899415c699b2c51aa ≤ v < a2bcd2b63271a93a695fabbfbf459c603d956d48, 6.0 | 81d8e9f59df63b8358751c1ffed9f1cf5c796909, aafda69d4807f5edf3558c9534be9b911774e63a, 8d66f7ced51cb924bc90278d6a0a26a52877271a, a2bcd2b63271a93a695fabbfbf459c603d956d48 |
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