CVE-2022-48971
CVE-2022-48971 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2022-53850
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
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
Frequently asked questions
- What is CVE-2022-48971?
- 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
- How severe is CVE-2022-48971?
- CVE-2022-48971 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2022-48971 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-48971?
- CVE-2022-48971 primarily affects Linux Linux Kernel. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-48971?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2022-48971 have an EU (EUVD) identifier?
- Yes. CVE-2022-48971 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-53850.
- When was CVE-2022-48971 published?
- CVE-2022-48971 was published on 2024-10-21 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/2c6cf0afc3856359e620e96edd952457d258e16c
- https://git.kernel.org/stable/c/2f3957c7eb4e07df944169a3e50a4d6790e1c744
- https://git.kernel.org/stable/c/5ecf7cd6fde5e72c87122084cf00d63e35d8dd9f
- https://git.kernel.org/stable/c/8a66c3a94285552f6a8e45d73b34ebbad11d388b
- https://git.kernel.org/stable/c/e7b950458156d410509a08c41930b75e72985938
- https://git.kernel.org/stable/c/edf7284a98296369dd0891a0457eec37df244873
Affected products (9)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.1:rc8:*:*:*:*:*:*
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