NULL pointer dereference in Linux kernel bluetooth driver



| Updated: 2025-05-11
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-53238
CWE-ID CWE-476
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) NULL pointer dereference

EUVDB-ID: #VU102146

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-2024-53238

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to NULL pointer dereference within the btusb_mtk_claim_iso_intf() function in drivers/bluetooth/btusb.c, within the btmtk_usb_isointf_init() function in drivers/bluetooth/btmtk.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.11 - 6.11.10

CPE2.3 External links

https://git.kernel.org/stable/c/1219c211ccd061cde002cc5708692efca515a7a0
https://git.kernel.org/stable/c/61c5a3def90ac729a538e5ca5ff7f461cff72776
https://git.kernel.org/stable/c/d8bd79f0eea9c07d90ce870a714ab5c10afaa4b3
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11.11


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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