Memory leak in Linux kernel bluetooth



| Updated: 2025-05-13
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-48844
CWE-ID CWE-401
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) Memory leak

EUVDB-ID: #VU94400

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-2022-48844

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to memory leak within the hci_release_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: 5.15 - 5.17 rc12

CPE2.3 External links

https://git.kernel.org/stable/c/3679ccc09d8806686d579095ed504e045af7f7d6
https://git.kernel.org/stable/c/9473d06bd1c8da49eafb685aa95a290290c672dd
https://git.kernel.org/stable/c/dd3b1dc3dd050f1f47cd13e300732852414270f8
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.30
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.16
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17


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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