boxscore/security
CVE · referencelatest edition

Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2024-27437

Linux Linux — vfio/pci: Disable auto-enable of exclusive INTx IRQ
  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   L   N  U  N  N  H    5.5   .0024   14.0     —
AFFECTED
  Product  Versions                                    Fixed
  Linux    89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 –  —
  Linux    3.6 –                                       5.4.274
TIMELINE
  Feb 25  Reserved by Linux
  Apr 5   Published (CNA: Linux)
  Oct 15  ENRICHED — CVE-2024-27437 (Linux). Received CVSS 5.5 and CPE data from NVD.
CNA: Linux · CVSS v3.1 · 10 references · NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Disable auto-enable of exclusive INTx IRQ Currently for devices requiring masking at the irqchip for INTx, ie. devices without DisINTx support, the IRQ is enabled in request_irq() and subsequently disabled as necessary to align with the masked status flag. This presents a window where the interrupt could fire between these events, resulting in the IRQ incrementing the disable depth twice. This would be unrecoverable for a user since the masked flag prevents nested enables through vfio. Instead, invert the logic using IRQF_NO_AUTOEN such that exclusive INTx is never auto-enabled, then unmask as required.

Lifecycle

Complete event history — 3 events, chronological
DateEventDetail
February 25, 2024ReservedReserved by Linux
April 5, 2024PublishedPublished (CNA: Linux)
October 15, 2026ENRICHEDENRICHED — CVE-2024-27437 (Linux). Received CVSS 5.5 and CPE data from NVD.

Affected

Affected products and packages — 2 rows
VendorProduct / PackageEcosystemVersion introducedFixed
LinuxLinux—89e1f7d4c66d85f42c3d52ea3866eb10cadf6153—
LinuxLinux—3.65.4.274

References (10)

Related

Authoritative record: CVE-2024-27437 at cve.org

Vendors: linux

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-27437 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.