CVEvulnerability
CVE-2023-53828
7.8 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2025-12-09
- Last modified
- 2026-10-15
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
References
- https://git.kernel.org/stable/c/81d8e9f59df63b8358751c1ffed9f1cf5c796909 git.kernel.org
- https://git.kernel.org/stable/c/8d66f7ced51cb924bc90278d6a0a26a52877271a git.kernel.org
- https://git.kernel.org/stable/c/a2bcd2b63271a93a695fabbfbf459c603d956d48 git.kernel.org
- https://git.kernel.org/stable/c/aafda69d4807f5edf3558c9534be9b911774e63a git.kernel.org