CVE-2022-48971

Bluetooth: Fix not cleanup led when bt_init fails

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

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.03%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/8a66c3a94285552f6a8e45d73b34ebbad11d388b	patch
https://git.kernel.org/stable/c/2c6cf0afc3856359e620e96edd952457d258e16c	patch
https://git.kernel.org/stable/c/e7b950458156d410509a08c41930b75e72985938	patch
https://git.kernel.org/stable/c/edf7284a98296369dd0891a0457eec37df244873	patch
https://git.kernel.org/stable/c/5ecf7cd6fde5e72c87122084cf00d63e35d8dd9f	patch
https://git.kernel.org/stable/c/2f3957c7eb4e07df944169a3e50a4d6790e1c744	patch

Frequently Asked Questions

What is the severity of CVE-2022-48971?: CVE-2022-48971 has been scored as a medium severity vulnerability.
How to fix CVE-2022-48971?: To fix CVE-2022-48971, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-48971 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2022-48971 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-48971?: CVE-2022-48971 affects Linux Linux, Linux Linux.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.