NULL pointer dereference in Linux kernel - CVE-2026-97516
Published: September 24, 2026
Vulnerability identifier: #VU151972
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97516
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a null pointer dereference in rtw_fw_adaptivity_result() in the rtw88 wireless driver when processing a firmware adaptivity result with an undefined edcca_th configuration. A local user can cause the driver to process a firmware adaptivity result to cause a denial of service.
The issue occurs on devices using the 8821CE chip, which does not define edcca_th in its chip information.
Affected software
Linux kernel
How to mitigate CVE-2026-97516
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3