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, 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...

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

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...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: perf: Fix event leak upon exit When a task is scheduled out, pending sigtrap deliveries are deferred to the target task upon resume to user space via taskwork. However, failures during the addition of an event’s callback to the...

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...

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...

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 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...

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...

The vulnerability of the __perf_event_overflow() function in the kernel/events/core.c module, which manages kernel events in Linux operating systems, allows a hacker to trigger a service failure.

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...

CVE-2026-23271 perf: Fix __perf_event_overflow() vs perf_remove_from_context() race

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...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, caused by a race condition between perfeventoverflow and perfremovefromcontext, which may lead to reusing resource...

CVE-2026-23127 perf: Fix refcount warning on event->mmap_count increment

In the Linux kernel, the following vulnerability has been resolved: perf: Fix refcount warning on event-mmapcount increment When calling refcountinc&event-mmapcount inside perfmmaprb, the following warning is triggered: refcountt: addition on 0; use-after-free. WARNING: lib/refcount.c:25 PoC:...

CVE-2026-23014

In the Linux kernel, the following vulnerability has been resolved: perf: Ensure swevent hrtimer is properly destroyed With the change to hrtimertrytocancel in perfsweventcancelhrtimer it appears possible for the hrtimer to still be active by the time the event gets freed. Make sure the event doe...