Astra Linux – vulnerability in linux-6.18

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Restore SST-PP control to all domains The SST-PP control offset is only restored to power domain 0 after resume. During suspend, control values are read and stored for all power domains. Use pdinfo-sstbase...

Linux kernel daemonize Heap Buffer Overflow DoS

The vulnerability in the daemonize function within the tools/power/x86/intel-speed-select/isst-daemon.c component of the Linux kernel operating system is related to insufficient resource control during its existence. Exploitation of this vulnerability may allow an attacker to compromise the...

SUSE CVE-2026-89438

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate...

SUSE 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...

SUSE CVE-2026-89439

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Add a NULL check for sstinst To be consistent with other places, add a NULL check for failed socket loading by checking isstcommon.sstinst...

SUSE CVE-2026-89443

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate level in perf mask ioctls isstifgetperflevelmask and isstifgetbasefreqmask use the user-provided level as an index into perflevels via readpplevelinfo and readbflevelinfo, but neither helper validates...

Linux Distros Unpatched Vulnerability : CVE-2026-89439

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - platform/x86: ISST: Add a NULL check for sstinst To be consistent with other places, add a NULL check for failed socket loading by checking isstcommon.sstinst...

Linux Distros Unpatched Vulnerability : CVE-2026-89442

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - platform/x86: ISST: Validate socket ID in closassoc ioctl isstifclosassoc validates the user- supplied socketid with 'socketid topologymaxpackages', but...

Linux Distros Unpatched Vulnerability : CVE-2026-89438

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU...

Linux Distros Unpatched Vulnerability : CVE-2026-89443

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - platform/x86: ISST: Validate level in perf mask ioctls isstifgetperflevelmask and isstifgetbasefreqmask use the user-provided level as an index into perflevels...

CVE-2026-89443

A flaw was found in the Linux kernel's platform/x86 ISST module. The isstifgetperflevelmask and isstifgetbasefreqmask functions fail to validate a user-provided 'level' parameter. A local attacker could exploit this by providing an invalid 'level' value, leading to an out-of-bounds read from the...

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...

CVE-2026-89439

A flaw was found in the Linux kernel's Intel Speed Select Technology ISST driver. A missing NULL check for isstcommon.sstinst during failed socket loading could allow a local attacker to trigger a NULL pointer dereference. This vulnerability could lead to a system crash, resulting in a Denial of...

AZL-100799 CVE-2026-89439 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Add a NULL check for sstinst To be consistent with other places, add a NULL check for failed socket loading by checking isstcommon.sstinst...

DEBIAN-CVE-2026-89438

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate...

DEBIAN-CVE-2026-89439

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Add a NULL check for sstinst To be consistent with other places, add a NULL check for failed socket loading by checking isstcommon.sstinst...

AZL-100674 CVE-2026-89438 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate...

CVE-2026-89438

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate...

CVE-2026-89439

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Add a NULL check for sstinst To be consistent with other places, add a NULL check for failed socket loading by checking isstcommon.sstinst...

AZL-100518 CVE-2026-89443 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate level in perf mask ioctls isstifgetperflevelmask and isstifgetbasefreqmask use the user-provided level as an index into perflevels via readpplevelinfo and readbflevelinfo, but neither helper validates...