Access of Uninitialized Pointer in Linux kernel - CVE-2026-93133
Published: September 25, 2026
Vulnerability identifier: #VU152197
CSH Severity: Low
CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-93133
CWE-ID: CWE-824
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 use of an uninitialized pointer in riscv_acpi_add_prt_dep() when processing ACPI PRT entries with unresolved source handles. A local user can trigger processing of an ACPI PRT entry with an unresolved source handle to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-93133
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3