vulnerability
Ubuntu: (CVE-2022-48971): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Oct 21, 2024 | Nov 19, 2024 | Sep 1, 2025 |
Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: Fix not cleanup led when bt_init fails
bt_init() calls bt_leds_init() to register led, but if it fails later,
bt_leds_cleanup() is not called to unregister it.
This can cause panic if the argument "bluetooth-power" in text is freed
and then another led_trigger_register() tries to access it:
BUG: unable to handle page fault for address: ffffffffc06d3bc0
RIP: 0010:strcmp+0xc/0x30
Call Trace:
<TASK>
led_trigger_register+0x10d/0x4f0
led_trigger_register_simple+0x7d/0x100
bt_init+0x39/0xf7 [bluetooth]
do_one_initcall+0xd0/0x4e0
Solutions
References
- CVE-2022-48971
- https://attackerkb.com/topics/CVE-2022-48971
- URL-https://git.kernel.org/linus/2f3957c7eb4e07df944169a3e50a4d6790e1c744
- URL-https://git.kernel.org/stable/c/2c6cf0afc3856359e620e96edd952457d258e16c
- URL-https://git.kernel.org/stable/c/2f3957c7eb4e07df944169a3e50a4d6790e1c744
- URL-https://git.kernel.org/stable/c/5ecf7cd6fde5e72c87122084cf00d63e35d8dd9f
- URL-https://git.kernel.org/stable/c/8a66c3a94285552f6a8e45d73b34ebbad11d388b
- URL-https://git.kernel.org/stable/c/e7b950458156d410509a08c41930b75e72985938
- URL-https://git.kernel.org/stable/c/edf7284a98296369dd0891a0457eec37df244873
- URL-https://www.cve.org/CVERecord?id=CVE-2022-48971
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