CVE-2026-89442

A flaw was found in the Linux kernel. The isstifclosassoc ioctl function in the platform/x86: ISST module contains an improper validation of the socketid. This allows a local attacker to cause an out-of-bounds access or a NULL pointer dereference. This could lead to a system crash, resulting in a...

AZL-100214 CVE-2026-89442 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate socket ID in closassoc ioctl isstifclosassoc validates the user-supplied socketid with 'socketid topologymaxpackages', but isstcommon.sstinst is allocated with topologymaxpackages entries, so the vali...

CVE-2026-89442

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate socket ID in closassoc ioctl isstifclosassoc validates the user-supplied socketid with 'socketid topologymaxpackages', but isstcommon.sstinst is allocated with topologymaxpackages entries, so the vali...

UBUNTU-CVE-2026-89442

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate socket ID in closassoc ioctl isstifclosassoc validates the user-supplied socketid with 'socketid topologymaxpackages', but isstcommon.sstinst is allocated with topologymaxpackages entries, so the vali...

CVE-2026-89442 platform/x86: ISST: Validate socket ID in clos_assoc ioctl

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate socket ID in closassoc ioctl isstifclosassoc validates the user-supplied socketid with 'socketid topologymaxpackages', but isstcommon.sstinst is allocated with topologymaxpackages entries, so the vali...

CVE-2026-89442

CVE-2026-89442 affects the Linux kernel 's platform/x86 ISST (Intelligent Speed and Frequency Tuning) module. The isst_if_clos_assoc() ioctl function improperly validates the user-supplied socket_id: it uses > instead of >= against topology_max_packages(), allowing an out-of-bounds array ac...