PT-2026-98624

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where the drain pebs function can be reentered. Because the PEBS buffer is shared by all events on a CPU, reentry can lead to an instance observing...

PT-2026-93625

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where kernel addresses can be leaked through the Last Branch Record LBR stack on Intel x86 systems. This occurs because the intel pmu lbr filter...

CVE-2026-31782 perf/x86: Fix potential bad container_of in intel_pmu_hw_config

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Fix potential bad containerof in intelpmuhwconfig Auto counter reload may have a group of events with software events present within it. The software event PMU isn't the x86hybridpmu and a containerof operation in...

UBUNTU-CVE-2025-68375

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Fix NULL event access and potential PEBS record loss When intelpmudrainpebsicl is called to drain PEBS records, the perfeventoverflow could be called to process the last PEBS record. While perfeventoverflow could trigge...

CVE-2025-40122 perf/x86/intel: Fix IA32_PMC_x_CFG_B MSRs access error

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-2025-38055

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Fix segfault with PEBS-via-PT with samplefreq Currently, using PEBS-via-PT with a sample frequency instead of a sample period, causes a segfault. For example: BUG: kernel NULL pointer dereference, address:...

SUSE CVE-2025-38055

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Fix segfault with PEBS-via-PT with samplefreq Currently, using PEBS-via-PT with a sample frequency instead of a sample period, causes a segfault. For example: BUG: kernel NULL pointer dereference, address:...

CVE-2025-38055

CVE-2025-38055 affects the Linux kernel (perf/x86/intel) where PEBS-via-PT with a sample_freq could trigger a NULL pointer dereference due to intel_pmu_pebs_event_update_no_drain() misinterpreting pebs_enabled bits as counter indexes. The issue arises when bits 60/61 are set for PEBS-via-PT, and ...

DEBIAN-CVE-2024-46848

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Limit the period on Haswell Running the ltp test cve-2015-3290 concurrently reports the following warnings. perfevents: irq loop stuck! WARNING: CPU: 31 PID: 32438 at arch/x86/events/intel/core.c:3174...

Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2021-1971)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CVE-2021-28971

In intelpmudrainpebsnhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications such as perf-fuzzer can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6...

CVE-2021-28971

The CVE-2021-28971 vulnerability affects the Linux kernel: specifically, intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c can mishandle PEBS status on Haswell-era CPUs, potentially causing a system crash when userspace tools (e.g., perf-fuzzer) access performance events. The issue exists in...

PT-2021-4227

Name of the Vulnerable Software and Affected Versions Linux kernel versions through 5.11.8 Description The issue is related to the intel pmu drain pebs nhm function in the Linux kernel, which can cause a system crash due to mishandling of the PEBS status in a PEBS record. This can be exploited by...