Access of Uninitialized Pointer in Linux kernel - CVE-2026-89943
Published: September 17, 2026
Vulnerability identifier: #VU150350
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89943
CWE-ID: CWE-824
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause undefined behavior.
The vulnerability exists due to access of an uninitialized pointer in loongson_card_parse_acpi() when processing the codec-dai-name ACPI property. A remote attacker can trigger processing of a missing or invalid codec-dai-name property to cause undefined behavior.
Affected software
Linux kernel
How to mitigate CVE-2026-89943
Install security update from vendor's repository.