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Vulnerability ID

CVE-2026-23271

Race condition in perf

ProductLinux kernel

CVSS 3.1High7.8

EPSS0.11%

Has public PoCNo

AI Exploitability

No working AI exploit yet

Working AI PoC: Not yet
Cheapest run: $9.94
Fastest run: —

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Overview

perf: Fix __perf_event_overflow() vs perf_remove_from_context() race Make sure that __perf_event_overflow() runs with IRQs disabled for all possible callchains. Specifically the software events can end up running it with only preemption disabled.

CWE: CWE-362
Weakness: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Component: perf
Impact: Not stated
Published: 2026-03-20
Fixed version: 7.0

Risk factors

In-the-WildNot observed

CISA KEVNot listed

Public ExploitNone known

Ransomware useNone known

Severity

CVSS 3.1Only version published

7.8High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitability

Attack VectorLocal

ComplexityLow

Privileges RequiredLow

User InteractionNone

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

EPSS

Chance of exploitation in the next 30 days

0.11%

SSVC

Stakeholder-specific vulnerability categorization

Not scored. CISA publishes an SSVC decision for a subset of CVEs.