CVE-2026-97960 perf/x86/intel: Prevent drain_pebs() reentry

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Prevent drainpebs reentry The PEBS buffer is shared by all events on a CPU, so drainpebs must not be reentered. If so, one instance may observe stale buffer state and potentially access out-of-bound memory. Most...

CVE-2026-97960

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Prevent drainpebs reentry The PEBS buffer is shared by all events on a CPU, so drainpebs must not be reentered. If so, one instance may observe stale buffer state and potentially access out-of-bound memory. Most...

EUVD-2026-86814

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Prevent drainpebs reentry The PEBS buffer is shared by all events on a CPU, so drainpebs must not be reentered. If so, one instance may observe stale buffer state and potentially access out-of-bound memory. Most...

CVE-2026-97960

The Linux kernel is vulnerable to a reentry issue in the perf/x86/intel component. The PEBS buffer is shared by all events on a CPU, meaning drain_pebs() must not be reentered; otherwise, an instance might observe a stale buffer state and potentially access out-of-bound memory . While most calls ...

AZL-103631 CVE-2026-93275 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/pt: Fix stop/start with no update If pteventstop is called without PERFEFUPDATE flag, then perfauxoutputend is not called. A subsequent call to pteventstart will call perfauxoutputbegin again which violates the rul...

CVE-2026-93275

The Linux kernel contains a vulnerability in the perf/x86/intel/pt component where calls to pt_event_stop() without the PERF_EF_UPDATE flag fail to call perf_aux_output_end(). This causes a subsequent pt_event_start() to call perf_aux_output_begin() again, violating nesting rules and triggering a...

EUVD-2026-86147

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/pt: Fix stop/start with no update If pteventstop is called without PERFEFUPDATE flag, then perfauxoutputend is not called. A subsequent call to pteventstart will call perfauxoutputbegin again which violates the rul...

CVE-2026-93275 perf/x86/intel/pt: Fix stop/start with no update

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/pt: Fix stop/start with no update If pteventstop is called without PERFEFUPDATE flag, then perfauxoutputend is not called. A subsequent call to pteventstart will call perfauxoutputbegin again which violates the rul...

Linux Distros Unpatched Vulnerability : CVE-2026-93275

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - perf/x86/intel/pt: Fix stop/start with no update If pteventstop is called without PERFEFUPDATE flag, then perfauxoutputend is not called. A subsequent call to...

CVE-2026-93181

CVE-2026-93181 affects the Linux kernel in the perf/x86/intel/uncore subsystem. The root cause is an incorrect call ordering: in the CPU online path, uncore_box_ref() was invoked before uncore_change_context(), so the gate on box->cpu >= 0 always failed and the uncore box was never initiali...

CVE-2026-93181: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix uncorebox ref/unref ordering In uncoreeventcpuonline, uncoreboxref was called before uncorechangecontext. uncoreboxref gates on box-cpu = 0, but box-cpu is still -1 at that point because...

EUVD-2026-80584

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Fix kernel address leakages in LBR stack Before Arch LBR gained CPL filtering support, a user-only branch stack could still contain kernel addresses. As a result, kernel branch records may be exposed to user space...

Linux Distros Unpatched Vulnerability : CVE-2026-89984

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - perf/x86/intel: Fix kernel address leakages in LBR stack Before Arch LBR gained CPL filtering support, a user-only branch stack could still contain kernel...

CVE-2026-53370: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Improve validation and configuration of ACR masks Currently there are several issues on the user space ACR mask validation and configuration. - The validation for user space ACR mask attr.config2 is incomplete,...

CVE-2026-43344: Reachable Assertion

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix die ID init and look up bugs In snbeppci2phymapinit, in the nrnodeids 8 path, uncoredevicetodie may return -1 when all CPUs associated with the UBOX device are offline. Remove the WARNONONCEdieid == -1...

CVE-2025-40359

CVE-2025-40359 concerns a kernel KASAN global-out-of-bounds read triggered by perf/x86/intel on non-hybrid platforms. The initial description notes the issue arises from __grt_latency_data() accessing hybrid_pmu(event->pmu) unconditionally and warns with WARN_ON_ONCE for hybrid PMU types, caus...

CVE-2025-40359: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Fix KASAN global-out-of-bounds warning When running "perf mem record" command on CWF, the below KASAN global-out-of-bounds warning is seen. ================================================================== BUG:...

CVE-2022-50615: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix reference count leak in snruncoremmiomap pcigetdevice will increase the reference count for the returned pcidev, so snruncoregetmcdev will return a pcidev with its reference count increased. We need to...

CVE-2025-40122: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Fix IA32PMCxCFGB MSRs access error When running perffuzzer on PTL, sometimes the below "unchecked MSR access error" is seen when accessing IA32PMCxCFGB MSRs. 55.611268 unchecked MSR access error: WRMSR to 0x1986...

CVE-2022-50318: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix reference count leak in hswephaslimitsbox pcigetdevice will increase the reference count for the returned 'dev'. We need to call pcidevput to decrease the reference count. Since 'dev' is only used in...