Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: cgroup: Split cgroupdestroywq into 3 workqueues A hang can occur during 1 LTP cgroup testing when repeatedly mounting/unmounting perfevent and netprio controllers with systemd.unifiedcgrouphierarchy=1. The hang manifests in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bpf: Fixed a UAF Use-after-Allocation issue by correcting mismatching between the bpfprog/attachment and tasks-trace-RCU flavors. Uprobes always use bpfprogrunarrayuprobe under tasks-trace-RCU protection. However, it is possible ...

PT-2026-98625

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the perf/core component where list corruption can occur. A Performance Monitoring Unit PMU uses the perf sched cb inc and perf sched cb dec interface to obtain the...

PT-2026-98077

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists where perf ftrace function unregister calls unregister ftrace function without verifying if the ftrace ops was successfully registered. This leads to a warning in...

PT-2026-104984

In the Linux kernel, the following vulnerability has been resolved: perf/ftrace: Fix WARNING in unregister ftrace function perf ftrace function unregister unconditionally calls unregister ftrace function without checking whether the ftrace ops was ever successfully registered. This triggers a WAR...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: perf: Fixed event leakage upon execution and file release The pending task work related to perf is never waited for when a matching event occurs. In the case of a child event released directly via freeevent, this can potential...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd: Check the event before enabling it to avoid a General Protection Fault GPF. On AMD machines, cpuc-eventsidx can become NULL due to a subtle race condition with NMI-throttle-x86pmustop. Check if the event is NULL in...

Astra Linux – Vulnerability in Linux, Linux 5.10

A race condition was identified in the Linux kernel’s perfeventopen function, which can be exploited by an unprivileged user to gain root privileges. This bug allows for the exploitation of several attack primitives, such as kernel address information leakage and arbitrary execution...

PT-2026-82133

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where perf event open accepts events in the EXIT state as group leaders because early validation only rejects REVOKED and DEAD events. This occurs aft...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: perf: Fix for perfpendingtask UaF According to syzbot, it is possible for perfpendingtask to continue running after the event has been freed. There are two related but distinct cases: - The taskwork was already queued before the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bpf,perf: Fixed an invalid progarray access in perfeventdetachbpfprog Syzbot reported a crash that occurs in the following tracing scenario: - Create a tracepoint with attr.inherit=1, attach it to the process, and set the BPF...

CVE-2026-72236

In the Linux kernel, the following vulnerability has been resolved: s390/perfcpumcf: Add missing arrayindexnospec to hwperfeventinit ev variable is userspace controlled via event-attr.config and used as an array index after bounds checking, but without speculation barriers. Add the missing...

EUVD-2026-38982

In the Linux kernel, the following vulnerability has been resolved: perf/amd/ibs: Avoid calling perfallowkernel from the IBS NMI handler Calling perfallowkernel from the NMI context is unsafe and could be fatal. Capture the permission at event-initialization time by storing it in event-hw.flags,...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: perf: Fixed the race between perfeventoverflow and perfremovefromcontext. Ensure that perfeventoverflow runs with IRQs disabled for all possible call chains. Specifically, software events may end up running it with preemption...

SUSE CVE-2026-23311

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix invalid wait context in ctxschedin Lockdep found a bug in the event scheduling when a pinned event was failed and wakes up the threads in the ring buffer like below. It seems it should not grab a wait-queue lock...

CVE-2026-23311

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix invalid wait context in ctxschedin Lockdep found a bug in the event scheduling when a pinned event was failed and wakes up the threads in the ring buffer like below. It seems it should not grab a wait-queue lock...

Linux Kernel Heap Buffer Overflow DoS

The vulnerability of the perfeventoverflow function in the kernel/events/core.c module, which manages kernel events in Linux operating systems, is related to buffer overflows based on stacks. Exploiting this vulnerability could allow an attacker to cause a system failure...

Linux Distros Unpatched Vulnerability : CVE-2026-23311

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - perf/core: Fix invalid wait context in ctxschedin Lockdep found a bug in the event scheduling when a pinned event was failed and wakes up the threads in the rin...

perf: Fix __perf_event_overflow() vs perf_remove_from_context() race

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UBUNTU-CVE-2026-23271

In the Linux kernel, the following vulnerability has been resolved: perf: Fix perfeventoverflow vs perfremovefromcontext race Make sure that perfeventoverflow runs with IRQs disabled for all possible callchains. Specifically the software events can end up running it with only preemption disabled...