NULL pointer dereference in Linux kernel - CVE-2025-38646
Published: August 28, 2025
Vulnerability identifier: #VU114517
CSH Severity: Low
CVSS v4.0: 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-2025-38646
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability 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 rtw89_core_cancel_6ghz_probe_tx() function in drivers/net/wireless/realtek/rtw89/core.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-38646
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/4b525630729082f026e7030eafccf89e3add7eae
- https://git.kernel.org/stable/c/77a7a48f87d673a68664bebf044214821decbfda
- https://git.kernel.org/stable/c/7e04f01bb94fe61c73cc59f0495c3b6c16a83231
- https://git.kernel.org/stable/c/892b29eab44b1803d2cad8e50f1bc2144ef478cb
- https://git.kernel.org/stable/c/f3527ac15a00916e68ecb495b74dbe6a6c62a06f