VDB

DEBIAN-CVE-2024-27437

DEBIAN-CVE-2024-27437 PUBLISHED CVSS 5.5 MEDIUM

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.

Risk Scores

CVSS 3.1
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

VendorProductVersions
Debian:12linux0, 6.1.82-1, 6.1.76-1
Debian:13linux0, 0
Debian:11linux5.10.140-1, 5.10.92-2, 5.10.127-1
Debian:14linux0, 0

Timeline

  • Apr 5, 2024 CVE Published
  • Apr 28, 2026 CVE Updated
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