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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities
NOTICE UPDATED - April, 25th 2024

NIST has updated the NVD program announcement page with additional information regarding recent concerns and the temporary delays in enrichment efforts.

CVE-2024-27437 Detail

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.


Severity

 


CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  N/A
NVD assessment not yet provided.


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/139dfcc4d723ab13469881200c7d80f49d776060
https://git.kernel.org/stable/c/26389925d6c2126fb777821a0a983adca7ee6351
https://git.kernel.org/stable/c/2a4a666c45107206605b7b5bc20545f8aabc4fa2
https://git.kernel.org/stable/c/3b3491ad0f80d913e7d255941d4470f4a4d9bfda
https://git.kernel.org/stable/c/561d5e1998d58b54ce2bbbb3e843b669aa0b3db5
https://git.kernel.org/stable/c/b7a2f0955ffceffadfe098b40b50307431f45438
https://git.kernel.org/stable/c/bf0bc84a20e6109ab07d5dc072067bd01eb931ec
https://git.kernel.org/stable/c/fe9a7082684eb059b925c535682e68c34d487d43

Weakness Enumeration

CWE-ID CWE Name Source

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-27437
NVD Published Date:
04/05/2024
NVD Last Modified:
04/13/2024
Source:
kernel.org