#VU105402 NULL pointer dereference in Linux kernel - CVE-2025-21827
Published: March 6, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU105402
Vulnerability risk: Low
CVSSv4.0: 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-2025-21827
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
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_mtk_claim_iso_intf() function in drivers/bluetooth/btusb.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/4194766ec8756f4f654d595ae49962acbac49490
- https://git.kernel.org/stable/c/930e1790b99e5839e1af69d2f7fd808f1fba2df9
- https://git.kernel.org/stable/c/e9087e828827e5a5c85e124ce77503f2b81c3491
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14