Improper locking in Linux kernel bluetooth



| Updated: 2025-05-12
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-48982
CWE-ID CWE-667
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper locking

EUVDB-ID: #VU98992

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-48982

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the hci_register_dev() function in net/bluetooth/hci_core.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.10 - 6.1 rc7

CPE2.3 External links

https://git.kernel.org/stable/c/549b46f8130effccf168293270bb3b1d5da529cc
https://git.kernel.org/stable/c/a49894a5ac3656f1a4f0f6b110460060e8026bf8
https://git.kernel.org/stable/c/dc8fa6570deadb70c3fb74d7cd8ce38849feaed0
https://git.kernel.org/stable/c/b5ca338751ad4783ec8d37b5d99c3e37b7813e59
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.159
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.83
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.13
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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