#VU109522 NULL pointer dereference in Linux kernel - CVE-2025-37918

Vulnerability identifier: #VU109522

Vulnerability 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-2025-37918

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

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_coredump_qca(), handle_dump_pkt_qca() and acl_pkt_is_dump_qca() functions in drivers/bluetooth/btusb.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.12, 6.12.1, 6.12.2, 6.12.3, 6.12.4, 6.12.5, 6.12.6, 6.12.7, 6.12.8, 6.12.9, 6.12.10, 6.12.11, 6.12.12, 6.12.13, 6.12.14, 6.12.15, 6.12.16, 6.12.17, 6.12.18, 6.12.19, 6.12.20, 6.12.21, 6.12.22, 6.12.23, 6.12.24, 6.12.25, 6.12.26, 6.12.27

---

External links
https://git.kernel.org/stable/c/0317b033abcd1d8dd2798f0e2de5e84543d0bd22
https://git.kernel.org/stable/c/2e8d44ebaa7babdd5c5ab50ca275826e241920d6
https://git.kernel.org/stable/c/8563d9fabd8a4b726ba7acab4737c438bf11a059
https://git.kernel.org/stable/c/b70b41591ec48c78ec6a885e1f57bfc4029e5e13
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.28

---

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.