CVE-2026-79608

This vulnerability affects Xen hypervisor versions 4.19.4 and onwards, 4.20.3 and onwards, 4.21.1 and onwards, and 4.22. The issue arises because a rework of the XSA-433 (Zenbleed, CVE-2023-20593) workaround introduced an inverted conditional , causing the fix to fail when needed and apply incorr...

x86/AMD: ineffectual Zenbleed workaround

ISSUE DESCRIPTION The workaround for XSA-433 Zenbleed, CVE-2023-20593 was later re-worked to better integrate with other manipulations of the same MSR. In this rework an inverted conditional was introduced, resulting in the workaround to not be applied when needed and vice versa. For more details...

CVE-2026-97947

A flaw was found in the Linux kernel's x86 AMD node component, which may lead to a Denial of Service DoS. If initialization of the AMD System Management Network SMN interface fails, exported read and write functions remain accessible without validating that internal device structures were...

SUSE CVE-2026-90136

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/hsmp: Reject negative power cap writes in hwmon hsmphwmonwrite takes the user-supplied hwmon value as a signed long and assigns "val / MICROWATTPERMILLIWATT" to msg.args0, which is a u32. MICROWATTPERMILLIWATT is...

CVE-2026-90136: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/hsmp: Reject negative power cap writes in hwmon hsmphwmonwrite takes the user-supplied hwmon value as a signed long and assigns "val / MICROWATTPERMILLIWATT" to msg.args0, which is a u32. MICROWATTPERMILLIWATT is...

CVE-2026-81016: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/pmc: Propagate SMU errors and validate S2D address amdstbs2dinit discards the return value of several S2D SMU commands. When the SMU refuses a command e.g. "SMU cmd failed. err: 0xff" the failure is only noticed...

CVE-2026-80602: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/lbr: Fix kernel address leakage A user-only branch stack can contain branches that originate from the kernel. As a result, kernel addresses are exposed to user space even when PERFSAMPLEBRANCHUSER is requested. On AM...

Linux X86 device driver Heap Buffer Overflow DoS

The vulnerability of the wbrfrecord function in the drivers/platform/x86/amd/wbrf.c module of the Linux X86 kernel device driver lies in improper memory release memory leak. Exploiting this vulnerability could allow an attacker to cause a system failure...

UBUNTU-CVE-2026-72325

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/core: Avoid enabling BRS from the SVM reload path Branch Sampling BRS and Last Branch Record LBR are mutually exclusive hardware features, and users of both are tracked via cpuc-lbrusers. When SVM is toggled on a CPU...

CVE-2026-72325

Technical details of CVE-2026-72325 are not public in the provided documents. Available descriptions summarize the issue but do not expose affected products, versions, or fixes. Monitor for updates from vendors/security advisories.

CVE-2026-72237: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/brs: Fix kernel address leakage A user-only branch stack can contain branches that originate from the kernel. As a result, kernel addresses are exposed to user space even when PERFSAMPLEBRANCHUSER is requested. On AM...

PT-2026-72513

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where Branch Sampling BRS and Last Branch Record LBR are treated as mutually exclusive hardware features, both tracked via the cpuc-lbr users variable...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013803)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013803 advisory. In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/core: Always clear status for idx The variable 'status' which contains the unhandled...

UBUNTU-CVE-2026-23065

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd: Fix memory leak in wbrfrecord The tmp buffer is allocated using kcalloc but is not freed if acpievaluatedsm fails. This causes a memory leak in the error path. Fix this by explicitly freeing the tmp buffer in th...

CVE-2026-23065: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd: Fix memory leak in wbrfrecord The tmp buffer is allocated using kcalloc but is not freed if acpievaluatedsm fails. This causes a memory leak in the error path. Fix this by explicitly freeing the tmp buffer in th...

CVE-2025-68798: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd: Check event before enable to avoid GPF On AMD machines cpuc-eventsidx can become NULL in a subtle race condition with NMI-throttle-x86pmustop. Check event for NULL in amdpmuenableall before enable to avoid a GPF. Th...

CVE-2023-54320: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd: pmc: Fix memory leak in amdpmcstbdebugfsopenv2 Function amdpmcstbdebugfsopenv2 may be called when the STB debug mechanism enabled. When amdpmcsendcmd fails, the 'buf' needs to be released...

Linux Distros Unpatched Vulnerability : CVE-2025-39678

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - platform/x86/amd/hsmp: Ensure sock-metrictbladdr is non-NULL If metric table address is not allocated, accessing metricsbin will result in a NULL pointer...

CVE-2025-39678: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/hsmp: Ensure sock-metrictbladdr is non-NULL If metric table address is not allocated, accessing metricsbin will result in a NULL pointer dereference, so add a check...

DEBIAN-CVE-2023-53073

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/core: Always clear status for idx The variable 'status' which contains the unhandled overflow bits is not being properly masked in some cases, displaying the following warning: WARNING: CPU: 156 PID: 475601 at...